05-Layer 3-IP Routing Command Reference

HomeSupportResource CenterH3C S6850 & S9850 Switch Series Command References-Release 655x-6W10105-Layer 3-IP Routing Command Reference
05-IS-IS commands
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05-IS-IS commands 590.98 KB

Contents

IS-IS commands· 1

address-family ipv4· 1

address-family ipv6· 1

area-authentication send-only· 2

area-authentication-mode· 3

auto-cost enable· 4

bandwidth-reference· 5

circuit-cost 6

cost-style· 7

default-route-advertise· 7

display isis· 8

display isis event-log graceful-restart 10

display isis event-log lsp· 11

display isis event-log non-stop-routing· 14

display isis event-log spf 15

display isis graceful-restart status· 30

display isis interface· 31

display isis lsdb· 35

display isis lsdb statistics· 40

display isis name-table· 41

display isis non-stop-routing status· 42

display isis packet 43

display isis peer 51

display isis redistribute· 53

display isis route· 56

display isis spf-tree· 62

display isis statistics· 71

display osi 74

display osi statistics· 75

distribute bgp-ls· 77

domain-authentication send-only· 77

domain-authentication-mode· 78

fast-reroute· 80

filter-policy export 80

filter-policy import 82

flash-flood· 83

graceful-restart 84

graceful-restart suppress-sa· 85

graceful-restart t1· 85

graceful-restart t2· 86

graceful-restart t3· 87

ignore-att 88

import-route· 88

import-route isis level-1 into level-2· 91

import-route isis level-2 into level-1· 92

import-route isisv6 level-1 into level-2· 93

import-route isisv6 level-2 into level-1· 94

import-route limit 94

isis· 95

isis authentication send-only· 96

isis authentication-mode· 97

isis bfd enable· 98

isis circuit-level 99

isis circuit-type p2p· 100

isis cost 100

isis dis-name· 101

isis dis-priority· 102

isis enable· 103

isis fast-reroute lfa-backup exclude· 103

isis ipv6 bfd enable· 104

isis ipv6 cost 104

isis ipv6 enable· 105

isis ipv6 fast-reroute lfa-backup exclude· 106

isis ipv6 prefix-suppression· 106

isis ipv6 primary-path-detect bfd· 107

isis ipv6 tag· 108

isis mib-binding· 108

isis prefix-suppression· 109

isis primary-path-detect bfd· 110

isis silent 110

isis small-hello· 111

isis tag· 111

isis timer csnp· 112

isis timer hello· 113

isis timer holding-multiplier 114

isis timer lsp· 115

isis timer retransmit 115

is-level 116

is-name· 117

is-name map· 117

ispf enable· 118

log-peer-change· 119

lsp-fragments-extend· 119

lsp-length originate· 120

lsp-length receive· 121

maximum load-balancing· 121

multi-topology· 122

network-entity· 122

non-stop-routing· 123

pic· 124

preference· 125

prefix-priority· 125

reset isis all 126

reset isis event-log graceful-restart 127

reset isis event-log lsp· 127

reset isis event-log non-stop-routing· 128

reset isis event-log spf 128

reset isis packet 128

reset isis peer 129

reset osi statistics· 130

set-att 130

set-overload· 131

snmp context-name· 132

snmp-agent trap enable isis· 132

summary· 134

timer lsp-generation· 135

timer lsp-max-age· 136

timer lsp-refresh· 137

timer spf 137

virtual-system·· 138


IS-IS commands

address-family ipv4

Use address-family ipv4 to create the IS-IS IPv4 address family and enter its view.

Use undo address-family ipv4 to delete the IS-IS IPv4 address family and all configurations in the view.

Syntax

address-family ipv4 [ unicast ]

undo address-family ipv4 [ unicast ]

Default

No IS-IS IPv4 address family exists.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

unicast: Specifies the unicast address family (the default).

Examples

# Create the IS-IS IPv4 address family and enter its view.

<Sysname> system-view

[Sysname] isis 100

[Sysname-isis-100] address-family ipv4

[Sysname-isis-100-ipv4]

address-family ipv6

Use address-family ipv6 to create the IS-IS IPv6 address family and enter its view.

Use undo address-family ipv6 to remove the IS-IS IPv6 address family and all configurations in the view.

Syntax

address-family ipv6 [ unicast ]

undo address-family ipv6 [ unicast ]

Default

No IS-IS IPv6 address family exists.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

unicast: Specifies the unicast address family (the default).

Usage guidelines

This command enables IPv6 for an IS-IS process.

Examples

# Create the IS-IS IPv6 address family and enter its view.

<Sysname> system-view

[Sysname] isis 100

[Sysname-isis-100] address-family ipv6

[Sysname-isis-100-ipv6]

area-authentication send-only

Use area-authentication send-only to configure IS-IS not to check the authentication information in the received Level-1 packets, including LSPs, CSNPs, and PSNPs.

Use undo area-authentication send-only to restore the default.

Syntax

area-authentication send-only

undo area-authentication send-only

Default

When area authentication mode and key are configured, a Level-1 or Level-1-2 router checks the authentication information in the received packets.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

When area authentication mode and key are configured, a Level-1 or Level-1-2 router adds the key in the specified mode into transmitted Level-1 packets (including LSPs, CSNPs, and PSNPs). It also checks the key in the received Level-1 packets.

To prevent packet exchange failure in case of an authentication key change, configure IS-IS not to check the authentication information in the received packets.

Examples

# Configure IS-IS not to check the authentication information in the received packets.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] area-authentication send-only

Related commands

area-authentication-mode

domain-authentication send-only

isis authentication send-only

area-authentication-mode

Use area-authentication-mode to specify an area authentication mode and a key.

Use undo area-authentication-mode to restore the default.

Syntax

area-authentication-mode { { gca key-id { hmac-sha-1 | hmac-sha-224 | hmac-sha-256 | hmac-sha-384 | hmac-sha-512 } [ nonstandard ] | md5 | simple } { cipher | plain } string | keychain keychain-name } [ ip | osi ]

undo area-authentication-mode

Default

No area authentication mode or key is configured.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

gca: Specifies the Generic Cryptographic Authentication (GCA) mode.

key-id: Uniquely identifies an SA in the range of 1 to 65535. The sender inserts the Key ID into the authentication TLV, and the receiver authenticates the packet by using the SA that is selected based on the Key ID.

hmac-sha-1: Specifies the HMAC-SHA-1 algorithm.

hmac-sha-224: Specifies the HMAC-SHA-224 algorithm.

hmac-sha-256: Specifies the HMAC-SHA-256 algorithm.

hmac-sha-384: Specifies the HMAC-SHA-384 algorithm.

hmac-sha-512: Specifies the HMAC-SHA-512 algorithm.

nonstandard: Specifies the nonstandard GCA mode.

md5: Specifies the MD5 authentication mode.

simple: Specifies the simple authentication mode.

cipher: Specifies a key in encrypted form.

plain: Specifies a key in plaintext form. For security purposes, the key specified in plaintext form will be stored in encrypted form.

string: Specifies the key. Its plaintext form is a case-sensitive string of 1 to 16 characters. Its encrypted form is a case-sensitive string of 33 to 53 characters.

keychain: Specifies the keychain authentication mode.

keychain-name: Specifies a keychain by its name, a case-sensitive string of 1 to 63 characters.

ip: Checks IP-related fields in LSPs.

osi: Checks OSI-related fields in LSPs.

Usage guidelines

Area authentication enables IS-IS to discard routes from untrusted routers.

The key in the specified mode is inserted into all outbound Level-1 packets (LSP, CSNP, and PSNP) and is used to authenticate inbound Level-1 packets.

The keychain authentication mode supports only the HMAC-MD5 algorithm.

·     Before IS-IS sends a Level-1 packet, it uses the valid send key obtained from the keychain to authenticate the packet. If no valid send key exists or the valid send key does not use the HMAC-MD5 algorithm, the authentication fails and the packet does not contain authentication information.

·     After IS-IS receives a Level-1 packet, it uses a valid accept key obtained from the keychain to authenticate the packet. If no valid accept key exists or all valid accept keys fail to authenticate the packet, the authentication fails and the packet is discarded.

Routers in an area must have the same authentication mode and key.

If neither ip nor osi is specified, OSI-related fields are checked.

When you specify the GCA mode, follow these guidelines:

·     If you do not specify the nonstandard keyword, the device can communicate only with devices that use the GCA mode.

·     If you specify the nonstandard keyword, the device can communicate only with devices that use the nonstandard GCA mode.

Examples

# Set the area authentication mode to simple, and set the plaintext key to 123456.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] area-authentication-mode simple plain 123456

Related commands

area-authentication send-only

domain-authentication-mode

isis authentication-mode

auto-cost enable

Use auto-cost enable to enable automatic link cost calculation.

Use undo auto-cost enable to disable automatic link cost calculation.

Syntax

auto-cost enable

undo auto-cost enable

Default

Automatic link cost calculation is disabled.

Views

IS-IS view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Usage guidelines

After automatic link cost calculation is enabled, the link cost is automatically calculated based on the bandwidth reference value of an interface. When the cost-style is wide or wide-compatible, the cost value of an interface is calculated by using the following formula: Cost = (Reference bandwidth value / Link bandwidth) × 10. For other cost styles, Table 1 applies.

Table 1 Automatic cost calculation scheme for cost styles other than wide and wide-compatible

Interface bandwidth

Cost

≤10 Mbps

60

≤100 Mbps

50

≤155 Mbps

40

≤622 Mbps

30

≤2500 Mbps

20

>2500 Mbps

10

Examples

# Enable automatic link cost calculation for IS-IS process 1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] auto-cost enable

Related commands

bandwidth-reference

cost-style

isis cost

isis ipv6 cost

bandwidth-reference

Use bandwidth-reference to set the bandwidth reference value for automatic link cost calculation.

Use undo bandwidth-reference to restore the default.

Syntax

bandwidth-reference value

undo bandwidth-reference

Default

The bandwidth reference value is 100 Mbps.

Views

IS-IS view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

value: Specifies the bandwidth reference value in the range of 1 to 2147483648 Mbps.

Examples

# Set the bandwidth reference of IS-IS process 1 to 200 Mbps.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] bandwidth-reference 200

Related commands

auto-cost enable

isis cost

circuit-cost

Use circuit-cost to set a global IS-IS link cost.

Use undo circuit-cost to remove the configuration.

Syntax

circuit-cost cost-value [ level-1 | level-2 ]

undo circuit-cost [ level-1 | level-2 ]

Default

No global link cost is configured.

Views

IS-IS view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

cost-value: Specifies the link cost value. The value range varies by cost style.

·     For styles narrow, narrow-compatible, and compatible, the cost value is in the range of 0 to 63.

·     For styles wide and wide-compatible, the cost value is in the range of 0 to 16777215.

level-1: Applies the link cost to Level-1.

level-2: Applies the link cost to Level-2.

Usage guidelines

If no level is specified, the specified cost applies to both Level-1 and Level-2.

Examples

# Set the global Level-1 link cost to 11 for IS-IS process 1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] circuit-cost 11 level-1

Related commands

cost-style

isis cost

cost-style

Use cost-style to set a cost style.

Use undo cost-style to restore the default.

Syntax

cost-style { narrow | wide | wide-compatible | { compatible | narrow-compatible } [ relax-spf-limit ] }

undo cost-style

Default

The IS-IS cost style is narrow.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

narrow: Receives and sends only narrow cost style packets. The narrow cost is in the range of 0 to 63.

wide: Receives and sends only wide cost style packets. The wide cost is in the range of 0 to 16777215.

compatible: Receives and sends both wide and narrow cost style packets.

narrow-compatible: Receives both narrow and wide cost style packets, but sends only narrow cost style packets.

wide-compatible: Receives both narrow and wide cost style packets, but sends only wide cost style packets.

relax-spf-limit: Allows receiving routes with a cost greater than 1023. If you do not specify this keyword, routes with a cost bigger than 1023 will be discarded. This keyword is available only when compatible or narrow-compatible is used.

Examples

# Configure the router to send only narrow cost style packets, but receive both narrow and wide cost style packets.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] cost-style narrow-compatible

Related commands

circuit-cost

isis cost

default-route-advertise

Use default-route-advertise to advertise a default route of 0.0.0.0/0.

Use undo default-route-advertise to restore the default.

Syntax

default-route-advertise [ avoid-learning | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

undo default-route-advertise

Default

Default route advertisement is disabled.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

avoid-learning: Avoids learning the default route received in LSPs or generated by using the ATT bit to avoid routing loops.

level-1: Advertises a Level-1 default route.

level-1-2: Advertises both Level-1 and Level-2 default routes.

level-2: Advertises a Level-2 default route.

route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters.

tag tag: Specifies the tag value for the default route, in the range of 1 to 4294967295.

Usage guidelines

If no level is specified, a Level-2 default route is advertised.

The Level-1 default route is advertised to other routers in the same area, and the Level-2 default route is advertised to all the Level-2 and Level-1-2 routers.

You can use a routing policy to specify a level for the default route. The apply isis level-1 command in routing policy view can generate a Level-1 default route. The apply isis level-2 command in routing policy view can generate a Level-2 default route. The apply isis level-1-2 command in routing policy view can generate both a Level-1 default route and Level-2 default route.

The tag value specified in the routing policy takes precedence over the tag value specified in this command.

Examples

# Configure IS-IS process 1 to advertise a Level-2 default route.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] default-route-advertise

display isis

Use display isis to display configuration information for an IS-IS process.

Syntax

display isis [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Specifies a process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays configuration information for all IS-IS processes.

Examples

# Display IS-IS configuration information.

<Sysname> display isis

 

          IS-IS(1) Protocol Information

 

Network entity                 : 10.0000.0000.0001.00

IS level                       : level-1-2

Cost style                     : Wide

Fast reroute                   : Disabled

Preference                     : 15

LSP length receive             : 1497

LSP length originate

    level-1                    : 1497

    level-2                    : 1497

Maximum imported routes        : 1000

Timers

    LSP-max-age                : 1200

    LSP-refresh                : 900

    SPF intervals              : 5 50 200

IPv6 enabled

    Multi-topology             : Standard

    Fast reroute               : Disabled

    Preference                 : 15

    Maximum imported routes    : 1000

    SPF intervals              : 5 50 200

Segment routing

    MPLS                        : Disabled

    Adjacency                   : Disabled

    Global block                : 16000 24000

    Level-1 tunnel count        : 0

    Level-2 tunnel count        : 0

Table 2 Command output

Field

Description

Network entity

Network entity name.

IS level

IS-IS routing level.

Cost style

Cost style.

Fast reroute

IS-IS FRR status:

·     Disabled—IS-IS FRR is disabled.

·     LFA—IS-IS FRR automatically calculates a backup next hop.

·     Route-policy—IS-IS FRR specifies a backup next hop by using a routing policy.

Preference

IS-IS route preference.

LSP length receive

Maximum LSP that can be received.

LSP length originate

Maximum LSP that can be generated.

Maximum imported routes

Maximum number of redistributed Level-1/Level-2 IPv4/IPv6 routes.

Timers

Timers:

·     LSP-max-age—Maximum life period of LSPs.

·     LSP-refresh—Refresh interval of LSPs.

·     SPF intervals—Interval between SPF calculations.

IPv6 enabled

IPv6 is enabled.

Multi-topology

IPv6 unicast topology mode:

·     Standard—IPv6 unicast topology standard mode.

·     Compatible—IPv6 unicast topology compatible mode.

Segment routing

This field is not supported in the current software version.

Segment routing is supported.

·     MPLS: MPLS SR status.

·     Adjacency: Adjacency label allocation status.

·     Global block: SRGB range.

·     Level-1 tunnel count: Number of SR tunnels in Level-1 areas.

·     Level-2 tunnel count: Number of SR tunnels in the Level-2 area.

display isis event-log graceful-restart

Use display isis event-log graceful-restart to display IS-IS GR log information.

Syntax

display isis event-log graceful-restart slot slot-number

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its ID.

Examples

# Display IS-IS GR log information for the specified slot.

<Sysname> display isis event-log graceful-restart slot 1

IS-IS loginfo :

Sep 18 08:48:24 2015 slot 1 Process 1 enter GR restarting phase(Initialization).

Sep 18 08:48:24 2015 slot 1 Process 1 enter GR phase (LSDB synchronization).

Sep 18 08:48:24 2015 slot 1 Process 1 enter GR phase (TE tunnel prepare).

Sep 18 08:48:24 2015 slot 1 Process 1 enter GR phase (First SPF computation).

Sep 18 08:48:25 2015 slot 1 Process 1 enter GR phase (Redistribution).

Sep 18 08:48:25 2015 slot 1 Process 1 enter GR phase (Second SPF computation).

Sep 18 08:48:25 2015 slot 1 Process 1 enter GR phase (LSP stability).

Sep 18 08:48:25 2015 slot 1 Process 1 enter GR phase (LSP generation).

Sep 18 08:48:25 2015 slot 1 Process 1 enter GR phase (Finish).

Sep 18 08:48:25 2015 slot 1 Process 1 GR complete.

Table 3 Command output

Field

Description

GR phase

GR phase:

·     Initialization.

·     LSDB synchronization.

·     TE tunnel prepare—Preparing for TE tunnel computation.

·     First SPF computation.

·     Redistribution.

·     Second SPF computation.

·     LSP stability—Ready to generate LSPs.

·     LSP generation.

·     Finish.

display isis event-log lsp

Use display isis event-log lsp to display IS-IS LSP log information.

Syntax

display isis event-log lsp { purged | refreshed } [ level-1 | level-2 ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

purged: Displays log information about purged LSPs.

refreshed: Displays log information about refreshed LSPs, including generated and received LSPs.

level-1: Displays Level-1 LSP log information.

level-2: Displays Level-2 LSP log information.

process-id: Specifies a process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays LSP log information for all IS-IS processes.

Usage guidelines

If you do not specify a level, the command displays both Level-1 and Level-2 LSP log information.

Examples

# Display IS-IS LSP log information.

<Sysname> display isis event-log lsp

 

                              LSP Log for IS-IS(1)

                              --------------------

 

                                Level-1 LSP Log

                                ---------------

 

Date       Time     LSPID                Seq Num    Event

-------------------------------------------------------------------------------

2015-11-06 11:10:45 1111.1111.1111.00-00 0x0000019c LSP received

2015-11-06 09:26:40 1111.1111.1111.01-00 0x00000111 Purged LSP received

2015-11-06 09:26:28 2222.2222.2222.00-00 0x00000181 LSP generated

2015-11-06 09:26:21 2222.2222.2222.00-00 0x00000180 Purged LSP generated

 

                                Level-2 SPF Log

                                ---------------

 

Date       Time     LSPID                Seq Num    Event

-------------------------------------------------------------------------------

2015-11-06 11:10:45 1111.1111.1111.00-00 0x0000090d LSP received

2015-11-06 09:26:41 1111.1111.1111.01-00 0x00000101 Purged LSP received

2015-11-06 09:26:27 2222.2222.2222.00-00 0x00000171 LSP generated

2015-11-06 09:26:20 2222.2222.2222.00-00 0x00000170 Purged LSP generated

# Displays log information about purged LSPs.

<Sysname> display isis event-log lsp purged

 

                              LSP log for IS-IS(1)

                              --------------------

 

                                Level-1 LSP log

                                ---------------

 

Date       Time     LSP ID               Seq Num    Event

--------------------------------------------------------------------------------

2017-07-31 10:19:48 1111.1111.1111.01-00 0x00000001 Generated LSP purge packet

2017-07-31 10:19:48 1111.1111.1111.01-00 0x00000001 Received LSP purge packet

2017-07-31 10:15:29 2222.2222.2222.01-00 0x00000005 Generated LSP purge packet

 

                                Level-2 LSP log

                                ---------------

 

Date       Time     LSP ID               Seq Num    Event

--------------------------------------------------------------------------------

2017-07-31 10:19:48 1111.1111.1111.01-00 0x00000001 Generated LSP purge packet

2017-07-31 10:19:48 1111.1111.1111.01-00 0x00000001 Received LSP purge packet

2017-07-31 10:15:29 2222.2222.2222.01-00 0x00000005 Generated LSP purge packet

# Displays log information about refreshed LSPs.

<Sysname> display isis event-log lsp refreshed

 

                              LSP log for IS-IS(1)

                              --------------------

 

                                Level-1 LSP log

                                ---------------

 

Date       Time     LSP ID                Seq Num    Event

--------------------------------------------------------------------------------

2017-06-06 17:18:48 0000.0000.0012.00-00 0x00000038 Received LSP

2017-06-06 17:18:48 0000.0000.0011.00-00 0x00000042 Received LSP

2017-06-06 17:18:48 0000.0000.0012.00-00 0x00000039 Generated LSP

2017-06-06 17:18:48 0000.0000.0012.00-00 0x00000038 Received LSP

2017-06-06 17:18:48 0000.0000.0011.00-00 0x00000042 Received LSP

2017-06-06 17:18:48 0000.0000.0012.00-00 0x00000002 Generated LSP

2017-06-06 17:18:48 0000.0000.0011.01-00 0x00000032 Received LSP

2017-06-06 17:18:48 0000.0000.0011.02-00 0x00000035 Received LSP

2017-06-06 17:18:48 0000.0000.0011.01-00 0x00000032 Received LSP

2017-06-06 17:18:48 0000.0000.0011.02-00 0x00000035 Received LSP

2017-06-06 17:18:47 0000.0000.0012.00-00 0x00000001 Generated LSP

 

                                Level-2 LSP log

                                ---------------

 

Date       Time     LSPID                Seq Num    Event

--------------------------------------------------------------------------------

2017-06-06 17:18:48 0000.0000.0012.00-00 0x00000002 Generated LSP

2017-06-06 17:18:47 0000.0000.0012.00-00 0x00000001 Generated LSP

Table 4 Command output

Field

Description

Date

Date of the LSP change.

Time

Time of the LSP change.

LSPID

LSP ID.

Seq Num

LSP sequence number.

Event

LSP change event:

·     Received LSP.

·     Received LSP purge packet.

·     Generated LSP.

·     Generated LSP purge packet.

Related commands

reset isis event-log lsp

display isis event-log non-stop-routing

Use display isis event-log non-stop-routing to display IS-IS NSR log information.

Syntax

display isis event-log non-stop-routing slot slot-number

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its ID.

Examples

# Display IS-IS NSR log information for the specified slot.

<Sysname> display isis event-log non-stop-routing slot 1

IS-IS loginfo :

Sep 18 10:20:44 2015 slot 1 Enter HA Block status

Sep 18 10:20:44 2015 slot 1 Exit HA Block status

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (Initialization).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (Smooth).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (TE tunnel prepare).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (First SPF computation).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (Redistribution).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (Second SPF computation).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (LSP stability).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (LSP generation).

Sep 18 10:24:00 2015 slot 1 Process 100 enter NSR phase (Finish).

Sep 18 10:24:00 2015 slot 1 Process 100 NSR complete.

Table 5 Command output

Field

Description

NSR phase

NSR phase:

·     Initialization.

·     Smooth.

·     TE tunnel prepare—Preparing for TE tunnel computation.

·     First SPF computation.

·     Redistribution.

·     Second SPF computation.

·     LSP stability—Ready to generate LSPs.

·     LSP generation.

·     Finish.

display isis event-log spf

Use display isis event-log spf to display IS-IS route calculation log information.

Syntax

display isis event-log spf [ ipv4 | ipv6 ] [ [ level-1 | level-2 ] | verbose ] * [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv4: Displays IPv4 IS-IS route calculation log information.

ipv6: Displays IPv6 IS-IS route calculation log information.

level-1: Displays Level-1 route calculation log information.

level-2: Displays Level-2 route calculation log information.

verbose: Displays detailed route calculation log information. If you do not specify this keyword, the command displays brief route calculation log information.

process-id: Specifies a process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays route calculation log information for all IS-IS processes.

Usage guidelines

If you do not specify the ipv4 or ipv6 keyword, the command displays IPv4 IS-IS route calculation log information for the public network.

If you do not specify a level, the command displays both Level-1 and Level-2 route calculation log information.

Examples

# Display brief IS-IS route calculation log information.

<Sysname> display isis event-log spf

 

                              SPF Log for IS-IS(1)

                              --------------------

 

                                Level-1 SPF Log

                                ---------------

 

Date       Time     Duration   Count      Trigger event

-------------------------------------------------------------------------------

2015-09-07 11:10:45 0          4          Interface metric changed

2015-09-07 09:26:40 0          4          LSP updated

2015-09-07 09:26:28 0          2          DIS changed

2015-09-07 09:26:21 0.001      2          LSP updated

2015-09-07 09:26:07 0.001      3          Direct route changed

 

                                Level-2 SPF Log

                                ---------------

 

Date       Time     Duration   Count      Trigger event

-------------------------------------------------------------------------------

2015-09-07 11:10:45 0          4          Interface metric changed

2015-09-07 09:26:40 0          4          LSP updated

2015-09-07 09:26:28 0          2          DIS changed

2015-09-07 09:26:21 0          2          LSP updated

2015-09-07 09:26:07 0          3          Direct route changed

# Display detailed IS-IS route calculation log information.

<Sysname> display isis event-log spf verbose

 

                              SPF Log for IS-IS(1)

                              --------------------

 

                                Level-1 SPF Log

                                ---------------

 

 Log date      : 2015-09-07 11:10:45

 Log key       : 5

 Trigger count : 4

 Trigger event : Interface metric changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 3

   BSPF           0            Candidate NBRs: 1

   LFA            0            LFA SPF nodes: 1

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 1 delete: 0

                               Last 10 routes:

                               1.1.1.0/24

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:40

 Log key       : 4

 Trigger count : 4

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 3

   BSPF           0            Candidate NBRs: 1

   LFA            0            LFA SPF nodes: 1

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:28

 Log key       : 3

 Trigger count : 2

 Trigger event : DIS changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF links changed: 1

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:21

 Log key       : 2

 Trigger count : 2

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0.001        Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0.001

 

 Log date      : 2015-09-07 09:26:07

 Log key       : 1

 Trigger count : 3

 Trigger event : Direct route changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0.001        Add: 1 modify: 0 delete: 0

                               Last 10 routes:

                               1.1.1.0/24

   Route summary  0            Summary route nodes: 0

   Total          0.001

 

                                Level-2 SPF Log

                                ---------------

 

 Log date      : 2015-09-07 11:10:45

 Log key       : 5

 Trigger count : 4

 Trigger event : Interface metric changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 3

   BSPF           0            Candidate NBRs: 1

   LFA            0            LFA SPF nodes: 1

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:40

 Log key       : 4

 Trigger count : 4

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 3

   BSPF           0            Candidate NBRs: 1

   LFA            0            LFA SPF nodes: 1

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:28

 Log key       : 3

 Trigger count : 2

 Trigger event : DIS changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF links changed: 1

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:21

 Log key       : 2

 Trigger count : 2

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 09:26:07

 Log key       : 1

 Trigger count : 3

 Trigger event : Direct route changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

Table 6 Command output

Field

Description

Date

Start date of route calculation.

Time

Start time of route calculation.

Duration

Route calculation duration in seconds. The value is accurate to six decimal places.

Count

Number of events that trigger the current route calculation.

Trigger event

Type of the most recent event that triggers route calculation:

·     NextHop changed.

·     DIS changed.

·     Interface metric changed.

·     SPF link changed.

·     Default route changed.

·     Summary route changed.

·     TE tunnel updated.

·     TE tunnel metric changed.

·     IPv6 mode changed.

·     FRR configuration changed.

·     Prefix priority configuration changed.

·     Route preference changed.

·     ISPF configuration changed.

·     Import filter policy changed.

·     ECMP configuration changed.

·     PIC configuration changed.

·     Interface LFA exclude changed.

·     ATT configuration changed.

·     GR/NSR first SPF.

·     GR over.

·     T3 timeout.

·     Direct route changed.

·     Logic interface changed.

·     Route leakage configuration changed.

·     NSR over.

·     Entered overload state.

·     Exited overload state.

·     Area address changed.

·     Route policy changed.

·     Redistributed route updated.

·     LSP updated.

·     MT disabled.

·     MT enabled.

·     TE tunnel configuration changed.

·     TE tunnel destination changed.

·     RIB smooth.

Log date

Generation time of the route calculation logs.

Log key

Route calculation log key.

Trigger count

Number of events that trigger the current route calculation.

SPF details

Detailed information about the route calculation phases.

Phase

Route calculation phase:

·     TE tunnel ADJ—TE tunnel adjacency calculation.

·     Topology—Topology calculation.

·     BSPF—Backup SPF calculation.

·     LFA—LFA calculation.

·     Area—Area calculation.

·     PRC—Prefix calculation.

·     Route summary—Route summarization calculation.

Description

Route calculation phase description:

·     TE SPF nodes—Number of SPF nodes for TE tunnel adjacency calculation.

·     SPF nodes—Number of SPF nodes for topology calculation.

·     Candidate NBRs—Number of candidate neighbors.

·     LFA SPF nodes—Number of SPF nodes for LFA calculation.

·     Area addresses—Number of area addresses.

·     Add, modify, and delete—Prefix calculation summary.

·     Last 10 routes—10 routes that are most recently calculated.

·     Summary route nodes—Number of summarized routes.

Total

Total duration time of all route calculation phases.

# Display brief IPv6 IS-IS route calculation log information.

<Sysname> display isis event-log spf ipv6

 

                              SPF Log for IS-IS(1)

                              --------------------

 

                                Level-1 SPF Log

                                ---------------

 

Date       Time     Duration   Count      Trigger event

-------------------------------------------------------------------------------

2015-09-07 11:10:45 0          4          Interface metric changed

2015-09-07 09:26:40 0          4          LSP updated

2015-09-07 09:26:28 0          2          DIS changed

2015-09-07 09:26:21 0.001      2          LSP updated

2015-09-07 09:26:07 0.001      3          Direct route changed

 

                                Level-2 SPF Log

                                ---------------

 

Date       Time     Duration   Count      Trigger event

-------------------------------------------------------------------------------

2015-09-07 11:10:45 0          4          Interface metric changed

2015-09-07 09:26:40 0          4          LSP updated

2015-09-07 09:26:28 0          2          DIS changed

2015-09-07 09:26:21 0          2          LSP updated

2015-09-07 09:26:07 0          3          Direct route changed

# Display detailed IPv6 IS-IS route calculation log information.

<Sysname> display isis event-log spf ipv6 verbose

 

                              SPF Log for IS-IS(1)

                              --------------------

 

                                Level-1 SPF Log

                                ---------------

 

 Log date      : 2015-09-07 02:18:09

 Log key       : 10

 Trigger count : 2

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 02:18:09

 Log key       : 9

 Trigger count : 2

 Trigger event : NextHop changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0.003        SPF nodes: 3

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0.003

 

 Log date      : 2011-01-01 02:17:40

 Log key       : 8

 Trigger count : 2

 Trigger event : Logic interface changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0.005        Add: 1 modify: 0 delete: 0

                               Last 10 routes:

                               10::/64

   Route summary  0            Summary route nodes: 0

   Total          0.005

 

 Log date      : 2015-09-07 02:17:38

 Log key       : 7

 Trigger count : 1

 Trigger event : Logic interface changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 02:17:33

 Log key       : 6

 Trigger count : 5

 Trigger event : NextHop changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF links changed: 1

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0.003        Add: 0 modify: 0 delete: 1

                               Last 10 routes:

                               3::/24

   Route summary  0            Summary route nodes: 0

   Total          0.003

 

 Log date      : 2015-09-07 02:17:21

 Log key       : 5

 Trigger count : 1

 Trigger event : Direct route changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0.006        Add: 1 modify: 0 delete: 0

                               Last 10 routes:

                               3::/24

   Route summary  0            Summary route nodes: 0

   Total          0.006

 

 Log date      : 2015-09-07 02:17:11

 Log key       : 4

 Trigger count : 1

 Trigger event : IPv6 mode changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 3

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 01:09:33

 Log key       : 3

 Trigger count : 2

 Trigger event : DIS changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0.001        SPF nodes: 3

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0.001

 

 Log date      : 2015-09-07 01:09:25

 Log key       : 2

 Trigger count : 2

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF links changed: 1

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 01:08:49

 Log key       : 1

 Trigger count : 1

 Trigger event : Area address changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

                                Level-2 SPF Log

                                ---------------

 

 Log date      : 2015-09-07 02:18:09

 Log key       : 10

 Trigger count : 2

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 02:18:09

 Log key       : 9

 Trigger count : 2

 Trigger event : NextHop changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0.002        SPF nodes: 3

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0.001        Summary route nodes: 0

   Total          0.003

 

 Log date      : 2015-09-07 02:17:40

 Log key       : 8

 Trigger count : 2

 Trigger event : Logic interface changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 02:17:38

 Log key       : 7

 Trigger count : 1

 Trigger event : Logic interface changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 02:17:33

 Log key       : 6

 Trigger count : 5

 Trigger event : NextHop changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF links changed: 1

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0.001        Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0.001

 

 Log date      : 2015-09-07 02:17:21

 Log key       : 5

 Trigger count : 1

 Trigger event : Direct route changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 0

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 02:17:11

 Log key       : 4

 Trigger count : 1

 Trigger event : IPv6 mode changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0.001        SPF nodes: 3

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0.001

 

 Log date      : 2015-09-07 01:09:33

 Log key       : 3

 Trigger count : 2

 Trigger event : DIS changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 3

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 01:09:25

 Log key       : 2

 Trigger count : 2

 Trigger event : LSP updated

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF links changed: 1

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

 

 Log date      : 2015-09-07 01:08:49

 Log key       : 1

 Trigger count : 1

 Trigger event : Area address changed

 SPF details   :

   Phase          Duration     Description

   TE tunnel ADJ  0            TE SPF nodes: 0

   Topology       0            SPF nodes: 0

   BSPF           0            Candidate NBRs: 0

   LFA            0            LFA SPF nodes: 0

   Area           0            Area addresses: 1

   PRC            0            Add: 0 modify: 0 delete: 0

   Route summary  0            Summary route nodes: 0

   Total          0

Table 7 Command output

Field

Description

Date

Start date of route calculation.

Time

Start time of route calculation.

Duration

Route calculation duration in seconds. The value is accurate to six decimal places.

Count

Number of events that trigger the current route calculation.

Trigger event

Type of the most recent event that triggers route calculation:

·     NextHop changed.

·     DIS changed.

·     Interface metric changed.

·     Interface MTR information changed.

·     SPF link changed.

·     Default route changed.

·     Summary route changed.

·     TE tunnel updated.

·     TE tunnel metric changed.

·     IPv6 mode changed.

·     FRR configuration changed.

·     Prefix priority configuration changed.

·     Route preference changed.

·     ISPF configuration changed.

·     Import filter policy changed.

·     ECMP configuration changed.

·     PIC configuration changed.

·     Interface LFA exclude changed.

·     ATT configuration changed.

·     GR/NSR first SPF.

·     GR over.

·     T3 timeout.

·     Direct route changed.

·     Logic interface changed.

·     Route leakage configuration changed.

·     NSR over.

·     Entered overload state.

·     Exited overload state.

·     Area address changed.

·     Route policy changed.

·     Redistributed route updated.

·     LSP updated.

·     MT disabled.

·     MT enabled.

·     TE tunnel configuration changed.

·     TE tunnel destination changed.

·     RIB smooth.

Log date

Generation time of the route calculation logs.

Log key

Route calculation log key.

Trigger count

Number of events that trigger the current route calculation.

SPF details

Detailed information about the route calculation phases.

Phase

Route calculation phase:

·     TE tunnel ADJ—TE tunnel adjacency calculation.

·     Topology—Topology calculation.

·     BSPF—Backup SPF calculation.

·     LFA—LFA calculation.

·     Area—Area calculation.

·     PRC—Prefix calculation.

·     Route summary—Route summarization calculation.

Description

Route calculation phase description:

·     TE SPF nodes—Number of SPF nodes for TE tunnel adjacency calculation.

·     SPF nodes—Number of SPF nodes for topology calculation.

·     Candidate NBRs—Number of candidate neighbors.

·     LFA SPF nodes—Number of SPF nodes for LFA calculation.

·     Area addresses—Number of area addresses.

·     Add, modify, and delete—Prefix calculation summary.

·     Last 10 routes—10 routes that are most recently calculated.

·     Summary route nodes—Number of summarized routes.

Total

Total duration time of all route calculation phases.

Related commands

reset isis event-log spf

display isis graceful-restart status

Use display isis graceful-restart status to display IS-IS GR state.

Syntax

display isis graceful-restart status [ level-1 | level-2 ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

level-1: Displays the IS-IS Level-1 GR state.

level-2: Displays the IS-IS Level-2 GR state.

process-id: Specifies a process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays GR state of all IS-IS processes.

Examples

# Display IS-IS GR state.

<Sysname> display isis graceful-restart status

 

                        Restart information for IS-IS(1)

                        --------------------------------

Restart status: COMPLETE

Restart phase: Finish

Restart t1: 3, count 10; Restart t2: 60; Restart t3: 300

SA Bit: supported

 

                          Level-1 restart information

                          ---------------------------

Total number of interfaces: 1

Number of waiting LSPs: 0

 

                          Level-2 restart information

                          ---------------------------

Total number of interfaces: 1

Number of waiting LSPs: 0

Table 8 Command output

Field

Description

Restart status

Current GR state:

·     RESTARTING—In this state, forwarding can be ensured.

·     STARTING—In this state, forwarding cannot be ensured.

·     COMPLETE—GR is completed.

Restart phase

Current Restart phase:

·     Initialization.

·     LSDB synchronization.

·     First SPF computation.

·     Redistribution.

·     Second SPF computation.

·     LSP stability—Ready to generate LSPs.

·     LSP generation.

·     Finish.

Restart t1

T1 timer, in seconds.

count

Number of T1 timer expirations.

Restart t2

T2 timer, in seconds.

Restart t3

T3 timer, in seconds.

SA Bit

Whether SA is supported.

Total number of interfaces

Total number of IS-IS interfaces.

Number of waiting LSPs

Number of LSPs not obtained by the GR restarter from GR helpers during LSDB synchronization.

display isis interface

Use display isis interface to display IS-IS interface information.

Syntax

display isis interface [ [ interface-type interface-number ] [ verbose ] | statistics ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type interface-number: Displays information for a specified IS-IS interface. If you do not specify this argument, the command displays information about all interfaces.

verbose: Displays detailed information about an interface. If you do not specify this keyword, the command displays brief information about an interface.

statistics: Displays IS-IS interface statistics.

process-id: Displays IS-IS interface information for an IS-IS process specified by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays interface information for all IS-IS processes.

Examples

# Display brief IS-IS interface information.

<Sysname> display isis interface

 

                       Interface information for IS-IS(1)

                       ----------------------------------

 

  Interface:  Vlan-interface100

  Index     IPv4 state      IPv6 state     Circuit ID   MTU   Type   DIS

  00001     Up              Down           1            1497  L1/L2  No/No

# Display detailed IS-IS interface information.

<Sysname> display isis interface verbose

 

                       Interface information for IS-IS(1)

                       ----------------------------------

 

  Interface:  Vlan-interface100

  Index     IPv4 state      IPv6 state     Circuit ID   MTU   Type   DIS

  00001     Up              Down           1            1497  L1/L2  No/No

  SNPA address                     : 000c-29e8-1bd5

  IP address                       : 192.168.220.10

  Secondary IP address(es)         :

  IPv6 link-local address          :

  Extended circuit ID              : 1

  CSNP timer value                 : L1        10   L2        10

  Hello timer value                :           10

  Hello multiplier value           :            3

  LSP timer value                  : L12       33

  LSP transmit-throttle count      : L12        5

  Cost                             : L1       100   L2        100

  IPv6 cost                        : L1        10   L2        10

  Priority                         : L1        64   L2        64

  Retransmit timer value           : L12        5

  LDP state                        : L1      Init   L2      No-LDP

  LDP sync state                   : L1      Init   L2    Achieved

  MPLS TE status                   : L1  Disabled   L2    Disabled

  IPv4 BFD                         : Disabled

  IPv6 BFD                         : Disabled

  IPv4 FRR LFA backup              : Enabled

  IPv6 FRR LFA backup              : Enabled

  IPv4 prefix suppression          : Disabled

  IPv6 prefix suppression          : Disabled

  IPv4 tag                         : 1

  IPv6 tag                         : 4294967295

  IPv4 primary path detection mode: BFD ctrl

  IPv6 primary path detection mode: BFD ctrl

# Display detailed information about interfaces enabled with SR.

<Sysname> display isis interface verbose

 

                       Interface information for IS-IS(1)

                       ----------------------------------

 

  Interface:  LoopBack1

  Index     IPv4 state      IPv6 state     Circuit ID   MTU   Type   DIS

  00003     Up              Down           1            1536  L1/L2  --

  SNPA address                     : 0000-0000-0000

  IP address                       : 111.111.111.111

  Secondary IP addresses         :

  IPv6 link-local address          :

  Extended circuit ID              : 3

  CSNP timer value                 : L1        10  L2        10

  Hello timer value                :           10

  Hello multiplier value           :            3

  LSP timer value                  : L12       33

  LSP transmit-throttle count      : L12        5

  Cost                             : L1         0  L2         0

  IPv6 cost                        : L1         0  L2         0

  Priority                         : L1        64  L2        64

  Retransmit timer value           : L12        5

  MPLS TE status                   : L1  Disabled  L2  Disabled

  IPv4 BFD                         : Disabled

  IPv6 BFD                         : Disabled

  IPv4 FRR LFA backup              : Enabled

  IPv6 FRR LFA backup              : Enabled

  IPv4 prefix suppression          : Disabled

  IPv6 prefix suppression          : Disabled

  IPv4 tag                         : 0

  IPv6 tag                         : 0

  Prefix-SID type                  : Index

  Value                            : 2

  Prefix-SID validity              : Valid

Table 9 Command output

Field

Description

Interface

Interface type and number.

Index

Interface index.

IPv4 state

IPv4 state:

·     Up—The interface is up at both the link layer and network layer.

·     Down—The interface is down at the link layer and network layer.

·     Lnk:Up/IP:Dn—The interface is up at the link layer but is down at the network layer.

IPv6 state

IPv6 state:

·     Up—The interface is up at both the link layer and network layer.

·     Down—The interface is down at the link layer and network layer.

·     Lnk:Up/IP:Dn—The interface is up at the link layer but is down at the network layer.

Circuit ID

Circuit ID. If IS-IS is not successfully enabled on the broadcast interface, this field displays 0(Invalid).

MTU

Interface MTU.

Type

Interface link adjacency type.

DIS

Indicates whether the interface is elected as the Level-1/Level-2 DIS.

In a P2P network, this field displays a hyphen (-) because DIS election is not performed.

SNPA address

Subnet access point address.

IP address

Primary IP address.

Secondary IP address(es)

Secondary IP addresses.

IPv6 link-local address

IPv6 link local address.

Extended circuit ID

Extended circuit ID for a P2P link.

CSNP timer value

Interval for sending CSNP packets.

Hello timer value

Interval for sending Hello packets.

Hello multiplier value

Number of invalid Hello packets.

LSP timer value

Minimum interval for sending LSP packets.

LSP transmit-throttle count

Number of LSP packets sent each time.

Cost

Cost of the interface.

IPv6 cost

IPv6 link cost of the interface.

Priority

DIS priority.

Retransmit timer value

Retransmission interval for LSPs on a P2P link.

MPLS TE status

MPLS TE status: Enabled or Disabled.

LDP state

LDP state:

·     Init—LDP is not reported.

·     No-LDP—LDP is not configured.

·     Not ready—LDP session is not established.

·     Ready—LDP session is established.

LDP sync state

LDP synchronization state:

·     Init—Initialized.

·     Achieved—Synchronized.

·     Max cost—Maintain the maximum cost.

IPv4 BFD

Whether BFD for IS-IS is enabled:

·     Disabled.

·     Enabled.

IPv6 BFD

Whether BFD for IPv6 IS-IS is enabled:

·     Disabled.

·     Enabled.

IPv4 FRR LFA backup

Whether LFA calculation is enabled for IPv4 FRR:

·     Disabled.

·     Enabled.

IPv6 FRR LFA backup

Whether LFA calculation is enabled for IPv6 FRR:

·     Disabled.

·     Enabled.

IPv4 prefix suppression

Whether IPv4 IS-IS prefix suppression is enabled:

·     Disabled.

·     Enabled.

IPv6 prefix suppression

Whether IPv6 IS-IS prefix suppression is enabled:

·     Disabled.

·     Enabled.

IPv4 tag

IPv4 tag value of the interface.

IPv6 tag

IPv6 tag value of the interface.

IPv4 primary path detection mode

IPv4 primary path detection mode:

·     BFD ctrl—BFD control packet mode.

·     BFD echo—BFD echo packet mode.

IPv6 primary path detection mode

IPv6 primary path detection mode:

·     BFD ctrl—BFD control packet mode.

·     BFD echo—BFD echo packet mode.

# Display IS-IS interface statistics.

<Sysname> display isis interface statistics

 

                  Interface statistics information for IS-IS(1)

                  --------------------------------------------

  Type            IPv4 up/down           IPv6 up/down

  LAN                   1/0                    0/0

  P2P                   0/0                    0/0

Table 10 Command output

Field

Description

Type

Network type of the interface:

·     LAN—Broadcast network.

·     P2P—Point-to-point network.

IPv4 up

Number of IS-IS interfaces in up state.

IPv4 down

Number of IS-IS interfaces in down state.

IPv6 up

Number of IS-ISv6 interfaces in up state.

IPv6 down

Number of IS-ISv6 interfaces in down state.

display isis lsdb

Use display isis lsdb to display IS-IS LSDB information.

Syntax

display isis lsdb [ [ level-1 | level-2 ] | local | [ lsp-id lspid | lsp-name lspname ] | verbose ] * [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

level-1: Displays the level-1 LSDB.

level-2: Displays the level-2 LSDB.

local: Displays LSP information generated locally.

lsp-id lspid: Specifies an LSP ID, in the form of sysID. Pseudo ID-fragment num, where sysID represents the originating node or pseudo node. Pseudo ID is separated by a dot from sysID and by a hyphen from fragment num.

lsp-name lspname: Specifies the LSP name, in the form of Symbolic name.Pseudo ID-fragment num, where Pseudo ID is separated by a dot from Symbolic name and by a hyphen from fragment num. If the Pseudo ID is 0, specify the LSP name in the form Symbolic name-fragment num.

verbose: Displays LSDB detailed information. If you do not specify this keyword, the command displays brief information about LSDB.

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays LSDBs for all IS-IS processes.

Usage guidelines

If no level is specified, the command displays both Level-1 and Level-2 LSDB information.

Examples

# Display brief Level-1 LSDB information.

<Sysname> display isis lsdb level-1

 

                        Database information for IS-IS(1)

                        --------------------------------

 

                          Level-1 Link State Database

                          ---------------------------

 

LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL

-------------------------------------------------------------------------------

0000.0000.0001.00-00* 0x00000087   0xf846        1152          183     0/0/0

0000.0000.0003.00-00  0x00000005   0x4bee        520           177     0/0/0

0000.0000.0003.00-01  0x00000004   0x7245        520           45      0/0/0

0000.0000.0011.00-00  0x0000000b   0xcdf6        815           183     0/0/0

 

    *-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload

# Display detailed Level-1 LSDB information.

<Sysname> display isis lsdb level-1 verbose

 

                        Database information for IS-IS(1)

                        --------------------------------

 

                          Level-1 Link State Database

                          ---------------------------

 

LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL

-------------------------------------------------------------------------------

0000.0000.0001.00-00* 0x00000080   0x73f         1185          183     0/0/0

 Source       0000.0000.0001.00

 NLPID        IPv4

 Area address 10

 IPv4 address 192.168.220.10

 MT ID        0000   (-/-)

 MT ID        0002   (-/-)

 MT ID        0006   (-/-)

 +NBR  ID

     0000.0000.0011.00                Cost: 100

     Admin group: 0x00000000

     Physical bandwidth: 12500000 bytes/sec

     Reservable bandwidth: 0 bytes/sec

     Unreserved bandwidth for each TE class:

       TE class  0: 0 bytes/sec             TE class  1: 0 bytes/sec

       TE class  2: 0 bytes/sec             TE class  3: 0 bytes/sec

       TE class  4: 0 bytes/sec             TE class  5: 0 bytes/sec

       TE class  6: 0 bytes/sec             TE class  7: 0 bytes/sec

       TE class  8: 0 bytes/sec             TE class  9: 0 bytes/sec

       TE class 10: 0 bytes/sec             TE class 11: 0 bytes/sec

       TE class 12: 0 bytes/sec             TE class 13: 0 bytes/sec

       TE class 14: 0 bytes/sec             TE class 15: 0 bytes/sec

     TE cost: 10

     Bandwidth constraint model: Prestandard DS-TE RDM

     Bandwidth constraints:

       BC[0]      : 0 bytes/sec             BC[1]      : 0 bytes/sec

     Neighbor IP address: 192.168.220.30

     Interface IP address: 192.168.220.10

 IPv6 unicast NBR ID

     6464.6464.6464.01                Cost: 10         MT ID: 2

 MT NBR ID

     6464.6464.6464.01                Cost: 10         MT ID: 6

 +IP-Extended

     192.168.220.0   255.255.255.0    Cost: 100

 IPv4 unicast

     1.1.1.1         255.255.255.255  Cost: 0          MT ID: 6

 IPv4 unicast

     10.10.10.0      255.255.255.0    Cost: 10         MT ID: 6

 IPv6 unicast

     1:1:1::1/128                     Cost: 0          MT ID: 2

 IPv6 unicast

     10:10:10::/64                    Cost: 10         MT ID: 2

 Router ID    1.1.1.1

 

0000.0000.0003.00-00  0x00000005   0x4bee        887           177     0/0/0

 Source       0000.0000.0003.00

 NLPID        IPv4

 Area address 10

 IPv4 address 10.10.10.10

 IPv4 address 192.168.220.20

 +NBR  ID

     0000.0000.0001.00                Cost: 10

     Admin group: 0x00000000

     Physical bandwidth: 12500000 bytes/sec

     Reservable bandwidth: 0 bytes/sec

     Unreserved bandwidth for each TE class:

       TE class  0: 0 bytes/sec             TE class  1: 0 bytes/sec

       TE class  2: 0 bytes/sec             TE class  3: 0 bytes/sec

       TE class  4: 0 bytes/sec             TE class  5: 0 bytes/sec

       TE class  6: 0 bytes/sec             TE class  7: 0 bytes/sec

       TE class  8: 0 bytes/sec             TE class  9: 0 bytes/sec

       TE class 10: 0 bytes/sec             TE class 11: 0 bytes/sec

       TE class 12: 0 bytes/sec             TE class 13: 0 bytes/sec

       TE class 14: 0 bytes/sec             TE class 15: 0 bytes/sec

     TE cost: 10

     Bandwidth constraint model: Prestandard DS-TE RDM

     Bandwidth constraints:

       BC[0]: 0 bytes/sec                   BC[1]: 0 bytes/sec

     Interface IP address: 192.168.220.20

     Neighbor IP address: 192.168.220.10

 Router ID    3.3.3.3

 

0000.0000.0003.00-01  0x00000004   0x7245        887           45      0/0/0

 Source       0000.0000.0003.00

 +IP-Extended

         10.10.10.0      255.255.255.0    Cost: 10

 +IP-Extended

         192.168.220.0   255.255.255.0    Cost: 10

 

 

*-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload

Table 11 Command output

Field

Description

LSPID

LSP ID.

Seq Num

LSP sequence number.

Checksum

LSP checksum.

Holdtime

LSP lifetime, which decreases as time elapses.

Length

LSP length.

ATT/P/OL

·     ATT—Attach bit.

·     P—Partition bit.

·     OL—Overload bit.

1 means the LSP bit is set and 0 means the LSP bit is not set.

Source

System ID of the originating router.

HOST NAME

Dynamic host name of the originating router.

ORG ID

Original system ID of the virtual system of the originating router.

NLPID

Network layer protocol the originating router runs.

Area address

Area address of the originating router.

IPv4 address

IP address of the originating router's IS-IS interface.

IPv6 address

IPv6 address of the originating router's IS-ISv6 interface.

MT ID        0000     (-/-)

MT ID        0002     (-/-)

MT ID        0006     (-/-)

Topology supported by the originating router (0/0/0 indicates ATT/P/OL):

·     0000—Base topology.

·     0002—IPv6 unicast topology.

·     0006—IPv4 unicast topology.

·     (-/-)—Attach bit/overload bit.

NBR ID

Neighbor ID of the originating router.

MT NBR ID

IPv4 unicast topology neighbor information about the originating router.

IPv6 unicast NBR ID

IPv6 unicast neighbor information about the originating router.

Admin group

Link management group attribute.

Interface IP address

IP address of the interface connected to the remote end.

Neighbor IP address

Neighbor interface IP address.

Physical bandwidth

Physical bandwidth.

Reservable bandwidth

Reserved bandwidth.

Unreserved bandwidth for each TE class

Available bandwidth reserved for each TE class.

TE class

Available bandwidth for each of the 8 or 16 TE classes.

TE cost

TE cost.

Bandwidth constraint model

Bandwidth constraint model:

·     Prestandard DS-TE RDM.

·     IETF DS-TE RDM.

·     IETF DS-TE MAM.

BC

Bandwidth constraint value. The Prestandard model supports 2 BCs, and the IETF modes support a maximum of 8 BCs.

Router ID

Router ID.

IP-Internal

Internal IP address and mask of the originating router.

IP-External

External IP address and mask of the originating router.

IP-Extended

Extended information about the originating router, including the IP address, subnet mask, and prefix SID information.

Cost

Cost.

Auth

Authentication information of the originating router.

IPV6

Internal IPv6 address and prefix of the originating router.

IPV6-Ext

External IPv6 address and prefix of the originating router.

IPv4 unicast

IPv4 unicast reachability information about the originating router.

IPv6 unicast

Internal IPv6 unicast reachability information about the originating router.

IPv6 unicast-ext

External IPv6 unicast reachability information about the originating router.

display isis lsdb statistics

Use display isis lsdb statistics to display IS-IS LSDB statistics.

Syntax

display isis lsdb statistics [ level-1 | level-2 ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

level-1: Displays Level-1 LSDB statistics.

level-2: Displays Level-2 LSDB statistics.

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays LSDB statistics for all IS-IS processes.

Usage guidelines

If you do not specify a level, the command displays both Level-1 and Level-2 LSDB statistics.

Examples

# Display IS-IS LSDB statistics.

<Sysname> display isis lsdb statistics

 

                   Database Statistics information for IS-IS(1)

                   -----------------------------------------

 

                              Level-1 LSDB Statistics

                              -----------------------

 

LSP source ID                                                      LSP count

--------------------------------------------------------------------------------

Total                                                              333

1111.1111.1111.00                                                  1

2222.2222.2222.00                                                  256

2222.2222.2222.01                                                  1

bbbb.bbbb.0001.00                                                  75

 

                              Level-2 LSDB Statistics

                              -----------------------

 

LSP source ID                                                      LSP count

--------------------------------------------------------------------------------

Total                                                              663

1111.1111.1111.00                                                  256

2222.2222.2222.00                                                  256

2222.2222.2222.01                                                  1

aaaa.aaaa.0001.00                                                  75

bbbb.bbbb.0001.00                                                  75

Table 12 Command output

Field

Description

LSP count

Number of LSPs generated by a source.

Total

Number of LSPs generated by all sources.

Related commands

display isis lsdb

display isis name-table

Use display isis name-table to display the host name-to-system ID mapping table.

Syntax

display isis name-table [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

process-id: Displays the host name to system ID mapping table for an IS-IS process specified by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays the host name to system ID mapping table for all IS-IS processes.

Examples

# Display the IS-IS host name to system ID mapping table.

<Sysname> display isis name-table

                      Name table information for IS-IS(1)

                      -----------------------------------

 System ID           Hostname                            Type       Level

 6789.0000.0001      RUTA                                DYNAMIC    Level-1

 6789.0000.0001      RUTA                                DYNAMIC    Level-2

 0000.0000.0041      RUTB                                STATIC     Level-1

 0000.0000.0041      RUTB                                STATIC     Level-2

 6789.0000.0001.01   DIS-A                               DYNAMIC    Level-1

 0000.0000.0041.01   DIS-B                               DYNAMIC    Level-2

Table 13 Command output

Field

Description

System ID

System ID.

Hostname

Host name.

Type

Mapping type:

·     STATIC.

·     DYNAMIC.

Level

Level on which the system ID-to-host name mapping takes effect: Level-1 or Level-2.

display isis non-stop-routing status

Use display isis non-stop-routing status to display IS-IS NSR status.

Syntax

display isis non-stop-routing status

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display IS-IS NSR status.

<Sysname> display isis non-stop-routing status

 

                        Nonstop Routing information for IS-IS(1)

                    ----------------------------------------

NSR phase: Finish

Table 14 Command output

Field

Description

NSR phase

NSR phase:

·     Initialization.

·     Smooth.

·     First SPF computation.

·     Redistribution.

·     Second SPF computation.

·     LSP stability—Ready to generate LSPs.

·     LSP generation.

·     Finish.

display isis packet

Use display isis packet to display IS-IS packet statistics.

Syntax

display isis packet { csnp | hello | lsp | psnp } by-interface [ verbose ] [ interface-type interface-number ] [ process-id ]

display isis packet { csnp | hello | lsp | psnp } [ verbose ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

csnp: Displays CSNP packet statistics.

hello: Displays hello packet statistics.

lsp: Displays LSP packet statistics.

psnp: Displays PSNP packet statistics.

by-interface: Displays packet statistics on a per-interface basis.

verbose: Displays detailed packet statistics.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this option, the command displays IS-IS packet statistics for all interfaces.

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays packet statistics for all IS-IS processes.

Examples

# Display detailed hello packet statistics on a per-interface basis.

<Sysname> display isis packet hello by-interface verbose

 

                     Hello packet information for IS-IS(1)

                     -------------------------------------

 

  Interface:  Vlan-interface10

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length     : 0          Bad header length          : 0

    Jumbo packet          : 0          Bad protocol description   : 0

    Bad protocol ID       : 0          Bad protocol version       : 0

    Unknown packet type   : 0          Bad max area count         : 0

    Bad system ID length  : 0          Bad circuit type           : 0

    Bad auth TLV: 0                    Bad area address TLV       : 0

    Auth failure          : 0          Excessive area addresses   : 0

    Bad NBR TLV           : 0          Excessive auth TLVs        : 0

    Excessive IF Addr TLVs: 0          Excessive IF addresses     : 0

    Bad IF address TLV    : 0          Duplicate system ID        : 0

    Bad TLV length        : 0          Bad IP address             : 0

    Duplicate IP address  : 0          Mismatched area address    : 0

    Mismatched protocol   : 0          Mismatched network type    : 0

    Bad IPv6 address TLV  : 0          Bad IPv6 address           : 0

    Duplicate IPv6 address: 0          Bad MT ID TLV              : 0

    SNPA conflict (LAN)   : 0          Excessive NBR SNPAs (LAN)  : 0

    Mismatched level (LAN): 0          Bad 3-Way option TLV (P2P) : 0

    No common MT ID (P2P) : 0          Bad circuit ID (P2P)       : 0

# Display detailed hello packet statistics.

<Sysname> display isis packet hello verbose

 

                     Hello packet information for IS-IS(1)

                     -------------------------------------

 

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length      : 0          Bad header length          : 0

    Jumbo packet           : 0          Bad protocol description   : 0

    Bad protocol ID        : 0          Bad protocol version       : 0

    Unknown packet type    : 0          Bad max area count         : 0

    Bad system ID length   : 0          Bad circuit type           : 0

    Bad auth TLV           : 0          Bad area address TLV       : 0

    Auth failure           : 0          Excessive area addresses   : 0

    Bad NBR TLV            : 0          Excessive auth TLVs        : 0

    Excessive IF Addr TLVs : 0          Excessive IF addresses     : 0

    Bad IF address TLV     : 0          Duplicate system ID        : 0

    Bad TLV length         : 0          Bad IP address             : 0

    Duplicate IP address   : 0          Mismatched area address    : 0

    Mismatched protocol    : 0          Mismatched network type    : 0

    Bad IPv6 address TLV   : 0          Bad IPv6 address           : 0

    Duplicate IPv6 address : 0          Bad MT ID TLV              : 0

    SNPA conflict (LAN)    : 0          Excessive NBR SNPAs (LAN)  : 0

    Mismatched level (LAN) : 0          Bad 3-Way option TLV (P2P) : 0

    No common MT ID (P2P)  : 0          Bad circuit ID (P2P)       : 0

Table 15 Command output

Field

Description

Input packets with errors

Statistics for packets with the following errors:

·     Bad packet length—Invalid packet length.

·     Bad header length—Invalid header length.

·     Jumbo packet—The packet length exceeds the buffer size or the interface MTU.

·     Bad protocol description—Invalid protocol description.

·     Bad protocol ID—Invalid protocol identifier.

·     Bad protocol version—Invalid protocol version.

·     Unknown packet type—Unknown packet type.

·     Bad max area count—Invalid maximum number of area addresses.

·     Bad system ID length—Invalid system ID length.

·     Bad circuit type—Invalid interface type.

·     Bad auth TLV—Invalid authentication TLV.

·     Bad area address TLV—Invalid area address TLV.

·     Auth failure—Authentication failure.

·     Excessive area addresses—Excessive area addresses.

·     Bad NBR TLV—Invalid neighbor TLV.

·     Excessive auth TLVs—Excessive authentication TLVs.

·     Excessive IF Addr TLVs—Excessive interface address TLVs.

·     Excessive IF addresses—Excessive interface addresses.

·     Bad IF address TLV—Invalid interface address TLV.

·     Duplicate system ID—Duplicate system IDs.

·     Bad TLV length—Invalid TLV length.

·     Bad IP address—The IP address does not belong to the same network as the local interface address.

·     Duplicate IP address—Duplicate IP addresses.

·     Mismatched area address—Mismatched area addresses.

·     Mismatched protocol—Mismatched protocols.

·     Mismatched network type—Mismatched network types.

·     Bad IPv6 address TLV—Invalid IPv6 address TLV.

·     Bad IPv6 address—Invalid IPv6 address.

·     Duplicate IPv6 address—Duplicate IPv6 addresses.

·     Bad MT ID TLV—Invalid topology ID TLV.

·     SNPA conflict (LAN)—SNPA conflict.

·     Excessive NBR SNPAs (LAN)—Excessive neighbor SNPAs.

·     Mismatched level (LAN)—Mismatched levels.

·     Bad 3-Way option TLV (P2P)—Invalid three-way handshake information.

·     No common MT ID (P2P)—No common topology ID.

·     Bad circuit ID (P2P)—Invalid circuit ID.

# Display detailed LSP packet statistics on a per-interface basis.

<Sysname> display isis packet lsp by-interface verbose

 

                      LSP packet information for IS-IS(1)

                      -----------------------------------

 

  Interface:  Vlan-interface10

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length   : 0          Bad header length        : 0

    Jumbo packet        : 0          SNPA conflict (LAN)      : 0

    Smaller than header : 0          Bad protocol description : 0

    Bad protocol ID     : 0          Bad protocol version     : 0

    Unknown packet type : 0          Bad max area count       : 0

    No active NBR       : 0          Bad system ID length     : 0

    Mismatched level    : 0          Illegal IS type          : 0

    Sequence number is 0: 0          Checksum is 0            : 0

    Incorrect checksum  : 0          Bad TLV length           : 0

    Mismatched protocol : 0          Bad auth TLV   : 0

    Auth failure        : 0          Excessive auth TLVs      : 0

    Bad NBR TLV         : 0          Bad extended IS TLV      : 0

    Bad IF address TLV  : 0          Bad IPv6 IF address TLV  : 0

    Bad alias TLV       : 0          Bad IP reachability TLV  : 0

    Bad MT IS TLV       : 0          Bad area address TLV     : 0

    Bad MT ID TLV       : 0          Bad MT IP TLV            : 0

    Bad MT IPv6 TLV     : 0          Bad IPv6 reachability TLV: 0

    Bad router ID TLV   : 0

# Display detailed LSP packet statistics.

<Sysname> display isis packet lsp verbose

 

                      LSP packet information for IS-IS(1)

                      -----------------------------------

 

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length    : 0          Bad header length         : 0

    Jumbo packet         : 0          SNPA conflict (LAN)       : 0

    Smaller than header  : 0          Bad protocol description  : 0

    Bad protocol ID      : 0          Bad protocol version      : 0

    Unknown packet type  : 0          Bad max area count        : 0

    No active NBR        : 0          Bad system ID length      : 0

    Mismatched level     : 0          Illegal IS type           : 0

    Sequence number is 0 : 0          Checksum is 0             : 0

    Incorrect checksum   : 0          Bad TLV length            : 0

    Mismatched protocol  : 0          Bad auth TLV              : 0

    Auth failure         : 0          Excessive auth TLVs       : 0

    Bad NBR TLV          : 0          Bad extended IS TLV       : 0

    Bad IF address TLV   : 0          Bad IPv6 IF address TLV   : 0

    Bad alias TLV        : 0          Bad IP reachability TLV   : 0

    Bad MT IS TLV        : 0          Bad area address TLV      : 0

    Bad MT ID TLV        : 0          Bad MT IP TLV             : 0

    Bad MT IPv6 TLV      : 0          Bad IPv6 reachability TLV : 0

    Bad router ID TLV    : 0

Table 16 Command output

Field

Description

Input packets with errors

Statistics for packets with the following errors:

·     Bad packet length—Invalid packet length.

·     Bad header length—Invalid header length.

·     Jumbo packet—The packet length exceeds the maximum length of packets that can be received.

·     SNPA conflict (LAN)—SNPA conflict.

·     Smaller than header—The packet length is smaller than the fixed header length.

·     Bad protocol description—Invalid protocol description.

·     Bad protocol ID—Invalid protocol identifier.

·     Bad protocol version—Invalid protocol version.

·     Unknown packet type—Unknown packet type.

·     Bad max area count—Invalid maximum number of area addresses.

·     No active NBR—The packet is from an unknown neighbor.

·     Bad system ID length—Invalid system ID length.

·     Mismatched level—Mismatched levels.

·     Illegal IS type—Invalid IS type.

·     Sequence number is 0—The sequence number is 0.

·     Checksum is 0—The checksum is 0.

·     Incorrect checksum—Incorrect checksum.

·     Bad TLV length—Invalid TLV length.

·     Mismatched protocol—Mismatched protocols.

·     Bad auth TLV—Invalid authentication TLV.

·     Auth failure—Authentication failure.

·     Excessive auth TLVs—Excessive authentication TLVs.

·     Bad NBR TLV—Invalid neighbor TLV.

·     Bad extended IS TLV—Invalid extended IS TLV.

·     Bad IF address TLV—Invalid interface address TLV.

·     Bad IPv6 IF address TLV—Invalid IPv6 interface address TLV.

·     Bad alias TLV—Invalid alias TLV.

·     Bad IP reachability TLV—Invalid IP reachability TLV.

·     Bad MT IS TLV—Invalid topology IS TLV.

·     Bad area address TLV—Invalid area address TLV.

·     Bad MT ID TLV—Invalid topology ID TLV.

·     Bad MT IP TLV—Invalid IPv4 topology TLV.

·     Bad MT IPv6 TLV—Invalid IPv6 topology TLV.

·     Bad IPv6 reachability TLV—Invalid IPv6 reachability TLV.

·     Bad router ID TLV—Invalid router ID TLV.

# Display detailed CSNP packet statistics on a per-interface basis.

<Sysname> display isis packet csnp by-interface verbose

 

                      CSNP packet information for IS-IS(1)

                      ------------------------------------

 

  Interface:  Vlan-interface10

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length  : 0          Bad header length       : 0

    Jumbo packet       : 0          SNPA conflict (LAN)     : 0

    Smaller than header: 0          Bad protocol description: 0

    Bad protocol ID    : 0          Bad protocol version    : 0

    Unknown packet type: 0          Bad max area count      : 0

    No active NBR      : 0          Bad system ID length    : 0

    Mismatched level   : 0          Bad TLV length          : 0

    Auth failure       : 0          Bad auth TLV            : 0

    Bad LSP TLV length : 0          Excessive auth TLVs     : 0

    Excessive LSPs     : 0          Bad LSP ID              : 0

# Display detailed CSNP packet statistics.

<Sysname> display isis packet csnp verbose

 

                      CSNP packet information for IS-IS(1)

                      ------------------------------------

 

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length   : 0          Bad header length        : 0

    Jumbo packet        : 0          SNPA conflict (LAN)      : 0

    Smaller than header : 0          Bad protocol description : 0

    Bad protocol ID     : 0          Bad protocol version     : 0

    Unknown packet type : 0          Bad max area count       : 0

    No active NBR       : 0          Bad system ID length     : 0

    Mismatched level    : 0          Bad TLV length           : 0

    Auth failure        : 0          Bad auth TLV             : 0

    Bad LSP TLV length  : 0          Excessive auth TLVs      : 0

    Excessive LSPs      : 0          Bad LSP ID               : 0

Table 17 Command output

Field

Description

Input packets with errors

Statistics for packets with the following errors:

·     Bad packet length—Invalid packet length.

·     Bad header length—Invalid header length.

·     Jumbo packet—The packet length exceeds the maximum length of packets that can be received.

·     SNPA conflict (LAN)—SNPA conflict.

·     Smaller than header—The packet length is smaller than the fixed header length.

·     Bad protocol description—Invalid protocol description.

·     Bad protocol ID—Invalid protocol identifier.

·     Bad protocol version—Invalid protocol version.

·     Unknown packet type—Unknown packet type.

·     Bad max area count—Invalid maximum number of area addresses.

·     No active NBR—The packet is from an unknown neighbor.

·     Bad system ID length—Invalid system ID length.

·     Mismatched level—Mismatched levels.

·     Bad TLV length—Invalid TLV length.

·     Auth failure—Authentication failure.

·     Bad auth TLV—Invalid authentication TLV.

·     Bad LSP TLV length—Invalid LSP TLV length.

·     Excessive auth TLVs—Excessive authentication TLVs.

·     Excessive LSPs—Excessive LSPs.

·     Bad LSP ID—Invalid LSP ID.

# Display detailed PSNP packet statistics on a per-interface basis.

<Sysname> display isis packet psnp by-interface verbose

 

                      PSNP packet information for IS-IS(1)

                      ------------------------------------

 

  Interface:  Vlan-interface10

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length  : 0          Bad header length       : 0

    Jumbo packet       : 0          SNPA conflict (LAN)     : 0

    Smaller than header: 0          Bad protocol description: 0

    Bad protocol ID    : 0          Bad protocol version    : 0

    Unknown packet type: 0          Bad max area count      : 0

    No active NBR      : 0          Bad system ID length    : 0

    Mismatched level   : 0          Bad TLV length          : 0

    Auth failure       : 0          Bad auth TLV            : 0

    Bad LSP TLV length : 0          Excessive auth TLVs     : 0

    Excessive LSPs     : 0          Bad LSP ID              : 0

# Display detailed PSNP packet statistics.

<Sysname> display isis packet psnp verbose

 

                      PSNP packet information for IS-IS(1)

                      ------------------------------------

 

  Total output packets : 0          Total output error packets : 0

  Total input packets  : 0          Total input error packets  : 0

 

  Input packets with errors

    Bad packet length   : 0          Bad header length        : 0

    Jumbo packet        : 0          SNPA conflict (LAN)      : 0

    Smaller than header : 0          Bad protocol description : 0

    Bad protocol ID     : 0          Bad protocol version     : 0

    Unknown packet type : 0          Bad max area count       : 0

    No active NBR       : 0          Bad system ID length     : 0

    Mismatched level    : 0          Bad TLV length           : 0

    Auth failure        : 0          Bad auth TLV             : 0

    Bad LSP TLV length  : 0          Excessive auth TLVs      : 0

    Excessive LSPs      : 0          Bad LSP ID               : 0

Table 18 Command output

Field

Description

Input packets with errors

Statistics for packets with the following errors:

·     Bad packet length—Invalid packet length.

·     Bad header length—Invalid header length.

·     Jumbo packet—The packet length exceeds the maximum length of packets that can be received.

·     SNPA conflict (LAN)—SNPA conflict.

·     Smaller than header—The packet length is smaller than the fixed header length.

·     Bad protocol description—Invalid protocol description.

·     Bad protocol ID—Invalid protocol identifier.

·     Bad protocol version—Invalid protocol version.

·     Unknown packet type—Unknown packet type.

·     Bad max area count—Invalid maximum number of area addresses.

·     No active NBR—The packet is from an unknown neighbor.

·     Bad system ID length—Invalid system ID length.

·     Mismatched level—Mismatched levels.

·     Bad TLV length—Invalid TLV length.

·     Auth failure—Authentication failure.

·     Bad auth TLV—Invalid authentication TLV.

·     Bad LSP TLV length—Invalid LSP TLV length.

·     Excessive auth TLVs—Excessive authentication TLVs.

·     Excessive LSPs—Excessive LSPs.

·     Bad LSP ID—Invalid LSP ID.

Related commands

reset isis packet

display isis peer

Use display isis peer to display IS-IS neighbor information.

Syntax

display isis peer [ statistics | verbose ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

statistics: Displays IS-IS neighbor statistics.

verbose: Displays detailed IS-IS neighbor information. If you do not specify this keyword, the command displays brief IS-IS neighbor information.

process-id: Displays IS-IS neighbor information for an IS-IS process specified by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays neighbor information for all IS-IS processes.

Examples

# Display brief IS-IS neighbor information.

<Sysname> display isis peer

 

                         Peer information for IS-IS(1)

                         -----------------------------

 

 System ID: 0000.0000.0001

 Interface: Vlan100                 Circuit Id:  0000.0000.0001.01

 State: Up     HoldTime:  27s       Type: L1(L1L2)     PRI: 64

 

 System ID: 0000.0000.0001

 Interface: Vlan100                 Circuit Id:  0000.0000.0001.01

 State: Up     HoldTime:  27s       Type: L2(L1L2)     PRI: 64

# Display detailed IS-IS neighbor information.

<Sysname> display isis peer verbose

 

                         Peer information for IS-IS(1)

                         ----------------------------

 

 System ID: 0000.1111.2222

 Interface: Vlan100                 Circuit Id:  0000.1111.2222.01

 State: Up     Holdtime:   6s       Type: L1(L1L2)     PRI: 64

 Area address(es): 49

 Peer IP address(es): 12.0.0.2

 Peer local circuit ID: 1

 Peer circuit SNPA address: 000c-293b-c4be

 Uptime: 00:05:07

 Adj protocol:  IPv4

 Adj P2P three-way handshake: No

Graceful Restart capable

   Restarting signal: No

   Suppress adjacency advertisement: No

 Local topology:

   0

 Remote topology:

   0    2

 

 System ID: 0000.0000.0002

 Interface: Vlan101                 Circuit Id:  001

 State: Up     HoldTime: 27s        Type: L1L2         PRI: --

 Area address(es): 49

 Peer IP address(es): 192.168.220.30

 Peer local circuit ID: 1

 Peer circuit SNPA address: 000c-29fd-ed69

 Uptime: 00:05:07

 Adj protocol:  IPv4

 Adj P2P three-way handshake: Yes

   Peer extended circuit ID: 2

Graceful Restart capable

   Restarting signal: No

   Suppress adjacency advertisement: No

Table 19 Command output

Field

Description

System ID

System ID of the neighbor.

Interface

Interface connecting to the neighbor.

Circuit Id

Circuit ID.

State

Circuit state.

HoldTime

Within the holdtime, if no hellos are received from the neighbor, the neighbor is considered down. If a hello is received, the holdtime is reset to the initial value.

Type

Circuit type:

·     L1—Means the circuit type is Level-1 and the neighbor is a Level-1 router.

·     L2—Means the circuit type is Level-2 and the neighbor is a Level-2 router.

·     L1(L1L2)—Means the circuit type is Level-1 and the neighbor is a Level-1-2 router.

·     L2(L1L2)—Means the circuit type is Level-2 and the neighbor is a Level-1-2 router.

PRI

DIS priority of the neighbor.

Area address(es)

Area address of the neighbor.

Peer IP address(es)

IP address of the neighbor.

Peer IPv6 address(es)

IPv6 address of the neighbor.

Uptime

Time elapsed since the neighbor relationship was formed.

Adj Protocol

Adjacency protocol: IPv4 or IPv6.

Peer local circuit ID

Circuit ID of the neighbor.

Peer circuit SNPA address

SNPA address of the neighbor.

Adj P2P three-way handshake

Indicates whether the neighbor supports P2P three-way handshake.

Peer extended circuit ID

Extended circuit ID of the neighbor interface. This field is available when the neighbor supports three-way handshake.

Graceful Restart capable

The neighbor has the GR helper capability.

Restarting signal

RR flag.

Suppress adjacency advertisement

SA flag.

Local topology

List of topologies supported by the local interface.

Remote topology

List of topologies supported by the neighbor interface.

# Display IS-IS neighbor statistics.

<Sysname> display isis peer statistics

 

                    Peer Statistics information for IS-IS(1)

                    ---------------------------------------

  Type              IPv4 Up/Init              IPv6 Up/Init

  LAN Level-1             1/0                       0/0

  LAN Level-2             1/0                       0/0

  P2P                     0/0                       0/0

Table 20 Command output

Field

Description

Type

Neighbor type:

·     LAN Level-1—Number of Level-1 neighbors whose network type is broadcast.

·     LAN Level-2—Number of Level-2 neighbors whose network type is broadcast.

·     P2P—Number of neighbors whose network type is P2P.

IPv4 Up

Number of IPv4 neighbors in up state.

IPv4 Init

Number of IPv4 neighbors in init state.

IPv6 Up

Number of IPv6 neighbors in up state.

IPv6 Init

Number of IPv6 neighbors in init state.

display isis redistribute

Use display isis redistribute to display the redistributed IS-IS routing information.

Syntax

display isis redistribute [ ipv4 [ ip-address mask-length ] | ipv6 [ ipv6-address prefix-length ] ] [ level-1 | level-2 ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv4: Displays the redistributed IPv4 routing information.

ipv6: Displays the redistributed IPv6 routing information.

ipv6-address prefix-length: Displays redistributed routes for the specified IPv6 address and mask length. The value range for the prefix-length argument is 1 to 128.

ip-address mask-length: Specifies the destination IP address and mask length.

process-id: Specifies the IS-IS process by its ID in the range of 1 to 65535.

level-1: Displays the IS-IS Level-1 routing information.

level-2: Displays the IS-IS Level-2 routing information.

Usage guidelines

If you do not specify the ipv4 or ipv6 keyword, the command displays redistributed IPv4 routing information.

If you do not specify an IS-IS level, this command displays both Level-1 and Level-2 routing information.

Examples

# Display redistributed IPv4 IS-IS routing information.

<Sysname> display isis redistribute 1

 

                         Route information for IS-IS(1)

                         ------------------------------

 

                        Level-1 IPv4 Redistribute Table

                        --------------------------------

 Type IPv4 Destination     IntCost    ExtCost    Tag        State

--------------------------------------------------------------------------------

 D    192.168.30.0/24      0          0                     Active

 D    11.11.11.11/32       0          0

 D    10.10.10.0/24        0          0

Table 21 Command output

Field

Description

Route information for IS-IS(1)

IS-IS process of the redistributed routing information.

Level-1 IPv4 Redistribute Table

Redistributed IPv4 routing information of IS-IS Level-1.

Level-2 IPv4 Redistribute Table

Redistributed IPv4 routing information of IS-IS Level-2.

Type

Redistributed route type.

IPV4 Destination

IPv4 destination address.

IntCost

Internal cost of the route.

ExtCost

External cost of the route.

Tag

Tag value.

State

Indicates whether the route is valid.

# Display redistributed IPv6 IS-IS routing information.

<Sysname> display isis redistribute ipv6 1

 

                         Route information for IS-IS(1)

                         ------------------------------

 

                        Level-1 IPv6 Redistribute Table

                        --------------------------------

Type       : direct     Destination: 12:1::/64

IntCost    : 0          Tag        :

State      : Active

 

 

                        Level-2 IPv6 Redistribute Table

                        --------------------------------

Type       : direct     Destination: 12:1::/64

IntCost    : 0          Tag        :

State      : Active

Table 22 Command output

Field

Description

Route information for IS-IS(1)

Redistributed routing information for IPv6 IS-IS process 1.

Level-1 IPv6 Redistribute Table

Redistributed IPv6 IS-IS Level-1 routing information.

Level-2 IPv6 Redistribute Table

Redistributed IPv6 IS-IS Level-2 routing information.

Type

Redistributed route types:

·     Direct.

·     IS-ISv6.

·     Static.

·     OSPFv3.

·     BGP4+.

·     RIPng.

Destination

IPv6 destination address.

IntCost

Internal route cost.

Tag

Tag value.

State

Indicates whether the redistributed route is valid.

display isis route

Use display isis route to display IS-IS routing information.

Syntax

display isis route [ ipv4 [ ip-address mask-length ] | ipv6 [ ipv6-address prefix-length ] ] [ [ level-1 | level-2 ] | verbose ] * [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv4: Displays IPv4 IS-IS routing information.

ip-address mask-length: Displays IPv4 IS-IS routing information for the specified IP address. The mask-length argument is in the range of 0 to 32.

ipv6: Displays IPv6 IS-IS routing information.

ipv6-address prefix-length: Displays IPv6 IS-IS routing information for the specified IPv6 address. The prefix-length argument is in the range of 0 to 128.

verbose: Displays detailed IS-IS routing information. If you do not specify this keyword, the command displays brief IS-IS routing information

process-id: Displays IS-IS routing information for an IS-IS process specified by its ID in the range of 1 to 65535. If you do not specify an IS-IS process, this command displays routing information for all IS-IS processes.

level-1: Displays Level-1 IS-IS routes.

level-2: Displays Level-2 IS-IS routes.

Usage guidelines

If you do not specify the ipv4 or ipv6 keyword, the command displays IPv4 IS-IS routing information.

If you do not specify a level, this command displays both Level-1 and Level-2 routing information.

Examples

# Display brief IPv4 IS-IS routing information.

<Sysname> display isis route

 

                         Route information for IS-IS(1)

                         -----------------------------

 

                         Level-1 IPv4 Forwarding Table

                         -----------------------------

 

 IPv4 Destination     IntCost    ExtCost ExitInterface   NextHop         Flags

-------------------------------------------------------------------------------

 8.8.8.0/24           10         NULL    Vlan100         Direct          D/L/-

 9.9.9.0/24           20         NULL    Vlan100         8.8.8.5         R/L/-

 

      Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

 

                         Level-2 IPv4 Forwarding Table

                         -----------------------------

 

 IPv4 Destination     IntCost    ExtCost ExitInterface   NextHop         Flags

-------------------------------------------------------------------------------

 8.8.8.0/24           10         NULL                                    D/L/-

 

      Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

Table 23 Command output

Field

Description

Route information for IS-IS(1)

Route information for IS-IS process 1.

Level-1 IPv4 Forwarding Table

IPv4 IS-IS routing information for Level-1.

Level-2 IPv4 Forwarding Table

IPv4 IS-IS routing information for Level-2.

IPv4 Destination

IPv4 destination address.

IntCost

Internal cost.

ExtCost

External cost.

ExitInterface

Output interface.

NextHop

Next hop.

Flags

Routing state flag:

·     D—Direct route.

·     R—The route has been added into the routing table.

·     L—The route has been advertised in an LSP.

·     U—Penetration flag. Setting it to UP can prevent an LSP sent from L2 to L1 from being sent back to L2.

# Display detailed IPv4 IS-IS routing information.

<Sysname> display isis route verbose

 

                         Route information for IS-IS(1)

                         -----------------------------

 

                         Level-1 IPv4 Forwarding Table

                         -----------------------------

 

 IPV4 Dest : 8.8.8.0/24          Int. Cost  : 10               Ext. Cost  : NULL

 Admin Tag : -                   Src Count  : 2                Flag       : D/L/-

 InLabel   : 4294967295          InLabel Flag: -/-/-/-/-/-

 NextHop   :                     Interface :                  ExitIndex :

    Direct                             Vlan100                   0x00000000

 Nib ID    : 0x0                 OutLabel   : 4294967295       OutLabelFlag: -

 

 IPV4 Dest : 9.9.9.0/24          Int. Cost  : 20               Ext. Cost  : NULL

 Admin Tag : -                   Src Count  : 1                Flag       : R/L/-

 InLabel   : 4294967295          InLabel Flag: -/-/-/-/-/-

 NextHop   :                     Interface :                  ExitIndex :

    8.8.8.5                            Vlan100                   0x00000003

 Nib ID    : 0x0                 OutLabel   : 4294967295       OutLabelFlag: -

 

      Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

 

      InLabel flags: R-Readvertisement, N-Node SID, P-no PHP

                     E-Explicit null, V-Value, L-Local

 

      OutLabelFlags: E-Explicit null, I-Implicit null, N-Nomal, P-SR label prefer

 

                         Level-2 IPv4 Forwarding Table

                         -----------------------------

 

 IPV4 Dest : 8.8.8.0/24          Int. Cost  : 10               Ext. Cost  : NULL

 Admin Tag : -                   Src Count  : 2                Flag       : D/L/-

 InLabel   : 4294967295          InLabel Flag: -/-/-/-/-/-

 NextHop   :                     Interface  :                  ExitIndex  :

    Direct                             Vlan100                    0x00000001

 Nib ID    : 0x14000003          OutLabel   : 4294967295       OutLabelFlag: -

 

      Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

 

      InLabel flags: R-Readvertisement, N-Node SID, P-no PHP

                     E-Explicit null, V-Value, L-Local

 

      OutLabelFlags: E-Explicit null, I-Implicit null, N-Nomal, P-SR label prefer

Table 24 Command output

Field

Description

Route information for IS-IS(1)

Route information for IS-IS process 1.

Level-1 IPv4 Forwarding Table

IPv4 IS-IS routing information for Level-1.

Level-2 IPv4 Forwarding Table

IPv4 IS-IS routing information for Level-2.

IPV4 Dest

IPv4 destination.

Int. Cost

Internal cost.

Ext. Cost

External cost.

Admin Tag

Tag.

Src Count

Count of advertising sources.

Flag

Route state flag:

·     R—The route has been installed into the routing table.

·     L—The route has been flooded in an LSP.

·     U—Route leaking flag. Setting it to UP can prevent an LSP sent from L2 to L1 from being sent back to L2.

Next Hop

Next hop.

Interface

Output interface.

ExitIndex

Index of the output interface.

Nib ID

ID assigned by the routing management module (next hop index).

InLabel

This field is not supported in the current software version.

Incoming label.

InLabel flag

This field is not supported in the current software version.

Incoming label flag:

·     R—Re-advertisement flag. If set, inter-level propagation or route redistribution exists.

·     N—Node-SID flag. If set, the prefix SID is the SID to an SR node.

·     P—No-PHP flag. If set, the penultimate node cannot pop the prefix SID.

·     E—Explicit null flag. If set, the upstream neighbor must replace the prefix SID with an explicit null flag before forwarding the packets.

·     V—Value/Index flag. If set, the prefix SID carries an absolute value.

·     L—Local flag. If set, the prefix SID has local significance.

OutLabel

This field is not supported in the current software version.

Outgoing label.

OutLabelFlag

This field is not supported in the current software version.

Outgoing label flag:

·     E—Explicit null flag. The upstream neighbor must replace the SID with an explicit null flag before forwarding the packets.

·     I—Implicit null flag. The upstream neighbor must replace the SID with an implicit null flag before forwarding the packets. This flag is not supported in the current software version.

·     N—Normal flag.

·     P—SR label preference flag.

# Display IPv6 IS-IS routing information.

<Sysname> display isis route ipv6

 

                         Route information for IS-IS(1)

                         ------------------------------

 

                         Level-1 IPv6 forwarding table

                         -----------------------------

 Destination: 2001:1::                                PrefixLen: 64

 Flag       : R/L/-                                   Cost     : 20

 Next hop   : FE80::200:5EFF:FE64:8905                Interface: Vlan100

 

 Destination: 2001:2::                                PrefixLen: 64

 Flag       : D/L/-                                   Cost     : 10

 Next hop   : Direct                                  Interface: Vlan100

 

       Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

 

                         Level-2 IPv6 forwarding table

                         -----------------------------

 

 Destination: 2001:1::                                PrefixLen: 64

 Flag       : -/-/-                                   Cost     : 20

 

 

 Destination: 2001:2::                                PrefixLen: 64

 Flag       : D/L/-                                   Cost     : 10

 

       Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

Table 25 Command output

Field

Description

Destination

IPv6 destination prefix.

PrefixLen

Length of the prefix.

Flag/Flags

Route flag:

·     D—This is a direct route.

·     R—The route has been added into the routing table.

·     L—The route has been advertised in an LSP.

·     U—Route leaking flag, indicating that the Level-1 route is from Level-2. U means the route will not be returned to Level-2.

Cost

Route cost.

Next hop

Next hop.

Interface

Output interface.

# Display detailed IPv6 IS-IS routing information.

<Sysname> display isis route ipv6 verbose

 

                         Route information for IS-IS(1)

                         ------------------------------

 

                         Level-1 IPv6 forwarding table

                         -----------------------------

 

 IPv6 dest : 2001:1::/64

 Flag      : D/L/-                       Cost      : 10

 Admin tag : -                           Src count : 2

 Nexthop   : Direct

 Interface : Vlan101

 Nib ID    : 0x0

 

 IPv6 dest : 2001:2::/64

 Flag      : R/-/-                       Cost      : 20

 Admin tag : -                           Src count : 2

 Nexthop   : FE80::200:5EFF:FE64:8905

 Interface : Vlan101

 BkNexthop   : FE80::200:5EFF:FE64:8905

 BkInterface : Vlan101

 Nib ID    : 0x24000002

 

      Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

 

                         Level-2 IPv6 Forwarding Table

                         -----------------------------

 

 IPv6 dest : 2001:1::/64

 Flag      : D/L/-                       Cost      : 10

 Admin tag : -                           Src count : 2

 Nexthop   : -

 Interface : -

 Nib ID    : -

 

 IPv6 dest : 2001:2::/64

 Flag      : D/L/-                       Cost      : 10

 Admin tag : -                           Src count : 2

 Nexthop   : -

 Interface : -

 Nib ID    : -

 

      Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set

Table 26 Command output

Field

Description

IPv6 dest

IPv6 destination address and prefix.

Flag/Flags

Route flag:

·     D—This is a direct route.

·     R—The route has been added into the routing table.

·     L—The route has been advertised in an LSP.

·     U—Route leaking flag, indicating the Level-1 route is from Level-2. U means the route will not be returned to Level-2.

Cost

Route cost.

Admin tag

Administrative tag.

Src count

Number of advertisement sources.

Nexthop

Next hop.

Interface

Output interface.

BkNexthop

Backup next hop.

BkInterface

Backup output interface.

Nib ID

Next hop index assigned by the routing management module.

display isis spf-tree

Use display isis spf-tree to display IS-IS SPF tree information.

Syntax

display isis spf-tree [ ipv4 | ipv6 ] [ [ level-1 | level-2 ] | verbose ] * [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv4: Displays IPv4 IS-IS SPF tree information.

ipv6: Displays IPv6 IS-IS SPF tree information.

level-1: Displays Level-1 IS-IS SPF tree information. If you do not specify a level, the command displays both Level-1 and Level-2 SPF tree information.

level-2: Displays Level-2 SPF tree information. If you do not specify a level, the command displays both Level-1 and Level-2 SPF tree information.

verbose: Displays detailed IS-IS SPF tree information. If you do not specify this keyword, the command displays brief IS-IS SPF tree information.

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays SPF tree information for all IS-IS processes.

Usage guidelines

If you do not specify the ipv4 or ipv6 keyword, the command displays IPv4 IS-IS SPF tree information.

Examples

# Display brief IPv4 IS-IS SPF tree information.

<Sysname> display isis spf-tree

 

                        Shortest Path Tree for IS-IS(1)

                        -------------------------------

 

      Flags: S-Node is on SPF tree       T-Node is on tent list

             O-Node is overload          R-Node is directly reachable

             I-Node or Link is isolated  D-Node or Link is to be deleted

             C-Neighbor is child         P-Neighbor is parent

             V-Link is involved          N-Link is a new path

             L-Link is on change list    U-Protocol usage is changed

             H-Nexthop is changed

 

                           Level-1 Shortest Path Tree

                           --------------------------

 

SpfNode            NodeFlag       SpfLink            LinkCost LinkFlag

-------------------------------------------------------------------------------

0000.0000.0032.00  S/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/C/-/-/-/-/-/-

                               -->0000.0000.0064.00  10       -/-/C/-/-/-/-/-/-

0000.0000.0032.01  S/-/-/R/-/-

                               -->0000.0000.0064.00  0        -/-/C/-/-/-/-/-/-

                               -->0000.0000.0032.00  0        -/-/-/P/-/-/-/-/-

0000.0000.0064.00  S/-/-/R/-/-

                               -->0000.0000.0032.00  10       -/-/-/P/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/-/P/-/-/-/-/-

 

                           Level-2 Shortest Path Tree

                           --------------------------

 

SpfNode            NodeFlag       SpfLink            LinkCost LinkFlag

-------------------------------------------------------------------------------

0000.0000.0032.00  S/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/C/-/-/-/-/-/-

                               -->0000.0000.0064.00  10       -/-/C/-/-/-/-/-/-

0000.0000.0032.01  S/-/-/R/-/-

                               -->0000.0000.0064.00  0        -/-/C/-/-/-/-/-/-

                               -->0000.0000.0032.00  0        -/-/-/P/-/-/-/-/-

0000.0000.0064.00  S/-/-/R/-/-

                               -->0000.0000.0032.00  10       -/-/-/P/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/-/P/-/-/-/-/-

# Display detailed IPv4 IS-IS SPF tree information.

<Sysname> display isis spf-tree verbose

 

                        Shortest Path Tree for IS-IS(1)

                        -------------------------------

 

      Flags: S-Node is on SPF tree       T-Node is on tent list

             O-Node is overload          R-Node is directly reachable

             I-Node or Link is isolated  D-Node or Link is to be deleted

             C-Neighbor is child         P-Neighbor is parent

             V-Link is involved          N-Link is a new path

             L-Link is on change list    U-Protocol usage is changed

             H-Nexthop is changed

 

                           Level-1 Shortest Path Tree

                           --------------------------

 

 SpfNode        : 0000.0000.0001.00

 Distance       : 0

 TE distance    : 0

 NodeFlag       : S/-/-/-/-/-

 RelayNibID     : 0x0

 TE tunnel count: 0

 Nexthop count  : 0

 SpfLink count  : 1

 -->0000.0000.0004.04

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Adjacent       Interface: N/A

        Cost: 10             Nexthop  : N/A

 

 SpfNode        : 0000.0000.0004.00

 Distance       : 10

 Te Distance    : 10

 NodeFlag       : S/-/-/-/-/-

 RelayNibID     : 0x14000000

 TE tunnel count: 1

     Destination: 4.4.4.4                  Interface  : Tun1

     TE cost    : 10                       Final cost : 10

     Add nexthop: YES                      Add TLV    : YES

 Nexthop count  : 2

     Neighbor   : 0000.0000.0004.00        Interface  : Tun1

     Nexthop    : 4.4.4.4

     BkNeighbor : N/A                      BkInterface: N/A

     BkNexthop  : N/A

     Neighbor   : 0000.0000.0004.00        Interface  : Vlan50

     Nexthop    : 1.1.1.3

     BkNeighbor : N/A                      BkInterface: N/A

     BkNexthop  : N/A

 SpfLink count  : 1

 -->0000.0000.0004.04

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/-/P/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Remote         Interface: N/A

        Cost: 10             Nexthop  : N/A

        AdvMtID: 0

 

 SpfNode        : 0000.0000.0004.04

 Distance       : 10

 TE distance    : 10

 NodeFlag       : S/-/-/R/-/-

 RelayNibID     : 0x14000001

 TE tunnel count: 0

 Nexthop count  : 0

 SpfLink count  : 2

 -->0000.0000.0001.00

    LinkCost    : 0

    LinkNewCost : 0

    LinkFlag    : -/-/-/P/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Remote         Interface: N/A

        Cost: 0              Nexthop  : N/A

 -->0000.0000.0004.00

    LinkCost    : 0

    LinkNewCost : 0

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Remote         Interface: Vlan50

        Cost: 0              Nexthop  : 1.1.1.3

 

                           Level-2 Shortest Path Tree

                           --------------------------

 

 SpfNode        : 0000.0000.0001.00

 Distance       : 0

 TE distance    : 0

 NodeFlag       : S/-/-/-/-/-

 RelayNibID     : 0x0

 TE tunnel count: 0

 Nexthop count  : 0

 SpfLink count  : 1

 -->0000.0000.0004.04

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Adjacent       Interface: N/A

        Cost: 10             Nexthop  : N/A

 

 SpfNode        : 0000.0000.0004.00

 Distance       : 10

 TE distance    : 10

 NodeFlag       : S/-/-/-/-/-

 RelayNibID     : 0x0

 TE tunnel count: 1

     Destination: 4.4.4.4                  Interface  : Tun1

     TE cost    : 10                       Final cost : 10

     Add nexthop: YES                      Add TLV    : YES

 Nexthop count  : 2

     Neighbor   : 0000.0000.0004.00        Interface  : Tun1

     Nexthop    : 4.4.4.4

     BkNeighbor : N/A                      BkInterface: N/A

     BkNexthop  : N/A

     Neighbor   : 0000.0000.0004.00        Interface  : Vlan50

     Nexthop    : 1.1.1.3

     BkNeighbor : N/A                      BkInterface: N/A

     BkNexthop  : N/A

 SpfLink count  : 1

 -->0000.0000.0004.04

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/-/P/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Remote         Interface: N/A

        Cost: 10             Nexthop  : N/A

        AdvMtID: 0

 

 SpfNode        : 0000.0000.0004.04

 Distance       : 10

 TE distance    : 10

 NodeFlag       : S/-/-/R/-/-

 RelayNibID     : 0x0

 TE tunnel count: 0

 Nexthop count  : 0

 SpfLink count  : 2

 -->0000.0000.0001.00

    LinkCost    : 0

    LinkNewCost : 0

    LinkFlag    : -/-/-/P/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Remote         Interface: N/A

        Cost: 0              Nexthop  : N/A

 -->0000.0000.0004.00

    LinkCost    : 0

    LinkNewCost : 0

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type: Remote         Interface: Vlan50

        Cost: 0              Nexthop  : 1.1.1.3

Table 27 Command output

Field

Description

SpfNode

ID of the topology node.

Distance

Shortest distance from the root node to the local node.

TE distance

Shortest distance from the root node to the local node (including tunnel links). If tunnel is not configured, TE distance equals to Distance.

NodeFlag

Node flag:

·     S—The node is on the SPF tree.

·     T—The node is on the tent list.

·     O—The node is overloaded.

·     R—The node is directly connected.

·     I—The node is isolated.

·     D—The node is to be deleted.

RelayNibID

Next hop ID of the node after route recursion.

TE tunnel count

Number of tunnels destined to this node.

Destination

Destination router.

TE cost

IGP cost of the TE tunnel.

Final cost

Final cost of the TE tunnel.

Nexthop count

Next hop count.

Nexthop

Primary next hop of the node or the link advertising source.

AdvMtID

Topology from which the routing information is learned:

·     0—Base topology.

·     6-4094—Other topologies.

Interface

Primary output interface of the node or the link advertising source.

BkNexthop

Backup next hop.

BkInterface

Backup output interface.

Neighbor

ID of the primary next hop neighbor.

BkNeighbor

ID of the backup next hop neighbor.

SpfLink

Topology link.

SpfLink count

Number of topology links.

LinkCost

Link cost.

LinkNewCost

New link cost.

LinkFlag

Link flag:

·     I—The link is isolated.

·     D—The link is to be deleted.

·     C—The neighbor is a child node.

·     P—The neighbor is the parent node.

·     V—The link is involved.

·     N—The link is a new path.

·     L—The link is on the change list.

·     U—The protocol usage of the link is changed.

·     H—The next hop of the link is changed.

LinkSrcCnt

Number of link advertising sources.

Type

Type of the link advertising source:

·     Adjacent—The link advertising source is a local neighbor.

·     Remote—The link advertising source is advertised by a remote node in an LSP.

Cost

Cost of the link advertising source.

# Display brief IPv6 IS-IS SPF tree information.

<Sysname> display isis spf-tree ipv6

 

                        Shortest Path Tree for IS-IS(1)

                        -------------------------------

 

      Flags: S-Node is on SPF tree       T-Node is on tent list

             O-Node is overload          R-Node is directly reachable

             I-Node or Link is isolated  D-Node or Link is to be deleted

             C-Neighbor is child         P-Neighbor is parent

             V-Link is involved          N-Link is a new path

             L-Link is on change list    U-Protocol usage is changed

             H-Nexthop is changed

 

                       Level-1 Shortest Path Tree

                       ----------------------------------

 

SpfNode            NodeFlag       SpfLink            LinkCost LinkFlag

-------------------------------------------------------------------------------

0000.0000.0032.00  S/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/C/-/-/-/-/-/-

                               -->0000.0000.0064.00  10       -/-/C/-/-/-/-/-/-

0000.0000.0032.01  S/-/-/R/-/-

                               -->0000.0000.0064.00  0        -/-/C/-/-/-/-/-/-

                               -->0000.0000.0032.00  0        -/-/-/P/-/-/-/-/-

0000.0000.0064.00  S/-/-/R/-/-

                               -->0000.0000.0032.00  10       -/-/-/P/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/-/P/-/-/-/-/-

 

                       Level-2 Shortest Path Tree

                       ----------------------------------

 

SpfNode            NodeFlag       SpfLink            LinkCost LinkFlag

-------------------------------------------------------------------------------

0000.0000.0032.00  S/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/C/-/-/-/-/-/-

                               -->0000.0000.0064.00  10       -/-/C/-/-/-/-/-/-

0000.0000.0032.01  S/-/-/R/-/-

                               -->0000.0000.0064.00  0        -/-/C/-/-/-/-/-/-

                               -->0000.0000.0032.00  0        -/-/-/P/-/-/-/-/-

0000.0000.0064.00  S/-/-/R/-/-

                               -->0000.0000.0032.00  10       -/-/-/P/-/-/-/-/-

                               -->0000.0000.0032.01  10       -/-/-/P/-/-/-/-/-

# Display detailed Level-1 IPv6 IS-IS SPF tree information.

<Sysname> display isis spf-tree ipv6 level-1 verbose

                        Shortest Path Tree for IS-IS(1)

                        -------------------------------

 

      Flags: S-Node is on SPF tree       T-Node is on tent list

             O-Node is overload          R-Node is directly reachable

             I-Node or Link is isolated  D-Node or Link is to be deleted

             C-Neighbor is child         P-Neighbor is parent

             V-Link is involved          N-Link is a new path

             L-Link is on change list    U-Protocol usage is changed

             H-Nexthop is changed

 

                           Level-1 Shortest Path Tree

                           --------------------------

 

 SpfNode        : 0000.0000.0032.00

 Distance       : 0

 TE distance    : 0

 NodeFlag       : S/-/-/-/-/-

 RelayNibID     : 0x0

 TE tunnel count: 0

 Nexthop count  : 0

 SpfLink count  : 2

 -->0000.0000.0032.01

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type    : Adjacent   Interface: N/A

        Cost    : 10         Nexthop  : N/A

-->0000.0000.0064.00

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type    : Adjacent   Interface: Tun1

        Cost    : 10         Nexthop  : FE80::A0A:A40

 

SpfNode        : 0000.0000.0032.01

 Distance       : 10

 TE distance    : 10

 NodeFlag       : S/-/-/R/-/-

 RelayNibID     : 0x0

 TE tunnel count: 0

 Nexthop count  : 0

 SpfLink count  : 2

 -->0000.0000.0064.00

    LinkCost    : 0

    LinkNewCost : 0

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type    : Adjacent   Interface: Vlan2

        Cost    : 10         Nexthop  : FE80::200:12FF:FE34:1

-->0000.0000.0032.00

    LinkCost    : 0

    LinkNewCost : 0

    LinkFlag    : -/-/-/P/-/-/-/-/-

    LinkSrcCnt  : 1

        Type    : Adjacent   Interface: N/A

        Cost    : 0           Nexthop  : N/A

 

SpfNode        : 0000.0000.0064.00

 Distance       : 10

 TE distance    : 10

 NodeFlag       : S/-/-/R/-/-

 RelayNibID     : 0x0

 TE tunnel count: 0

 Nexthop count  : 2

     Neighbor  : 0000.0000.0064.00        Interface  : Vlan2

     NextHop   : FE80::200:12FF:FE34:1

     BkNeighbor: N/A                      BkInterface: N/A

     BkNextHop : N/A

     Neighbor  : 0000.0000.0064.00        Interface  : Tun1

     NextHop   : FE80::A0A:A40

     BkNeighbor: N/A                      BkInterface: N/A

     BkNextHop : N/A

 SpfLink count  : 2

 -->0000.0000.0032.00

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/-/P/-/-/-/-/-

    LinkSrcCnt  : 1

        Type    : Remote     Interface: N/A

        Cost    : 10         Nexthop  : N/A

        AdvMtID : 0

-->0000.0000.0064.00

    LinkCost    : 10

    LinkNewCost : 10

    LinkFlag    : -/-/C/-/-/-/-/-/-

    LinkSrcCnt  : 1

        Type    : Remote     Interface: Tun1

        Cost    : 10         Nexthop  : FE80::A0A:A40

        AdvMtID : 0

Table 28 Command output

Field

Description

SpfNode

ID of the topology node.

Distance

Shortest distance from the root node to the current node.

TE distance

Shortest distance from the root node to the current node (including tunnel links). If no tunnels are configured, TE distance equals Distance.

NodeFlag

Node flag:

·     S—The node is on the SPF tree.

·     T—The node is on the tent list.

·     O—The node is overloaded.

·     R—The node is directly connected.

·     I—The node is isolated.

·     D—The node is to be deleted.

TE tunnel count

Number of tunnels destined for this node.

Nexthop count

Number of next hops.

NextHop

Primary next hop of the node or the link advertising source.

AdvMtID

Topology from which the routing information is learned:

·     0—IPv4 unicast topology.

·     2—IPv6 unicast topology.

·     6-4094—Other topologies.

Interface

Primary output interface of the node or the link advertising source.

BkNextHop

Backup next hop.

BkInterface

Backup output interface.

Neighbor

ID of the primary next hop neighbor.

BkNeighbor

ID of the backup next hop neighbor.

SpfLink

Topology link.

SpfLink count

Number of topology links.

LinkCost

Link cost.

LinkNewCost

New link cost.

LinkFlag

Link flag:

·     I—The link is isolated.

·     D—The link is to be deleted.

·     C—The neighbor is a child node.

·     P—The neighbor is the parent node.

·     V—The link is involved.

·     N—The link is a new path.

·     L—The link is on the change list.

·     U—The protocol of the link is changed.

·     H—The next hop of the link is changed.

LinkSrcCnt

Number of link advertising sources.

Type

Type of the link advertising source:

·     Adjacent—The link advertising source is a local neighbor.

·     Remote—The link advertising source is advertised by a remote node in an LSP.

Cost

Cost of the link advertising source.

display isis statistics

Use display isis statistics to display IS-IS statistics.

Syntax

display isis statistics [ ipv4 | ipv6 ] [ level-1 | level-1-2 | level-2 ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv4: Displays IPv4 IS-IS statistics. If you do not specify this option, the command displays both IPv4 and IPv6 statistics.

ipv6: Displays IPv6 IS-IS statistics.

level-1: Displays IS-IS Level-1 statistics.

level-1-2: Displays IS-IS Level-1-2 statistics.

level-2: Displays IS-IS Level-2 statistics.

process-id: Displays statistics for an IS-IS process specified by its ID in the range of 1 to 65535. If you do not specify an IS-IS process, this command displays the statistics for all IS-IS processes.

Usage guidelines

If you do not specify a level, this command displays both Level-1 and Level-2 routing information.

Examples

# Display IS-IS statistics.

<Sysname> display isis statistics

 

                       Statistics information for IS-IS(1)

                       ----------------------------------

 

                               Level-1 Statistics

                               ------------------

 

MTR(base)

 

Learnt routes information:

         Total IPv4 Learnt Routes in IPv4 Routing Table: 1

 

Imported routes information:

         IPv4 Imported Routes:

                         Static: 0       Direct: 0

                         ISIS:   0       BGP:    0

                         RIP:    0       OSPF:   0

                         Total Number:   0

 

MTR(base)

 

Learnt routes information:

         Total IPv6 Learnt Routes in IPv6 Routing Table: 0

 

Imported routes information:

         IPv6 Imported Routes:

                         Static: 0       Direct: 0

                         ISISv6: 0       BGP4+:  0

                         RIPng:  0       OSPFv3: 0

                         Total Number:   0

 

Lsp information:

                  LSP Source ID:          No. of used LSPs

                  7777.8888.1111                  001

 

                               Level-2 Statistics

                               ------------------

 

MTR(base)

 

Learnt routes information:

         Total IPv4 Learnt Routes in IPv4 Routing Table: 0

 

Imported routes information:

         IPv4 Imported Routes:

                         Static: 0       Direct: 0

                         ISIS:   0       BGP:    0

                         RIP:    0       OSPF:   0

                         Total Number:   0

 

MTR(base)

 

Learnt routes information:

         Total IPv6 Learnt Routes in IPv6 Routing Table: 0

 

Imported routes information:

         IPv6 Imported Routes:

                         Static: 0       Direct: 0

                         ISISv6: 0       BGP4+:  0

                         RIPng:  0       OSPFv3: 0

                         Total Number:   0

 

Lsp information:

                  LSP Source ID:          No. of used LSPs

                  7777.8888.1111                  001

Table 29 Command output

Field

Description

Statistics information for IS-IS(processid)

Statistics for the IS-IS process.

Level-1 Statistics

Level-1 statistics.

Level-2 Statistics

Level-2 statistics.

MTR(topo-name)

MTR topology. base represents the base topology.

Learnt routes information

·     Total IPv4 Learnt Routes in IPv4 Routing Table—Number of learned IPv4 routes.

·     Total IPv6 Learnt Routes in IPv6 Routing Table—Number of learned IPv6 routes.

IPv4 Imported Routes

Numbers of different types of redistributed IPv4 routes, including static, direct, IS-IS, BGP, RIP, and OSPF routes.

IPv6 Imported Routes

Numbers of different types of redistributed IPv6 routes, including static, direct, IS-ISv6, BGP4+, RIPng, and OSPFv3 routes.

Lsp information

LSP information:

·     LSP Source ID—ID of the source system.

·     No. of used LSPs—Number of used LSPs.

display osi

Use display osi to display OSI connection information.

Syntax

display osi [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays OSI connection information for all member devices.

Examples

# Display OSI connection information. 

<Sysname> display osi

Total OSI socket number: 2

 

 Location: slot 0

 Creator: isisd[1539]

 State: N/A

 Options: SO_FILTER

 Error: 0

 Receiving buffer(cc/hiwat/lowat/drop/state): 0 / 1048576 / 1 / 0 / N/A

 Sending buffer(cc/hiwat/lowat/state): 0 / 262144 / 512 / N/A

 Type: 2

 Enabled interfaces:

  Vlan-interface100

   MAC address: 0180-c200-0014

 

 Location: slot 0

 Creator: isisd[1539]

 State: N/A

 Options: SO_FILTER

 Error: 0

 Receiving buffer(cc/hiwat/lowat/drop/state): 0 / 1048576 / 1 / 0 / N/A

 Sending buffer(cc/hiwat/lowat/state): 0 / 262144 / 512 / N/A

 Type: 2

 Enabled interfaces:

  Vlan-interface100

   MAC address: 0180-c200-0014

Table 30 Command output

Field

Description

Total OSI socket number

Total number of OSI sockets.

Creator

Name of the socket creator. The process ID of the creator is displayed in the square brackets.

State

This field always displays N/A.

Options

Socket options:

·     SO_FILTER—Filter option is configured.

·     N/A—No option is configured.

Error

Number of errors that affect the socket session.

Receiving buffer(cc/hiwat/lowat/drop/state)

Receiving buffer information, including the current used space, maximum space, minimum space, number of dropped packets, and status.

Sending buffer(cc/hiwat/lowat/state)

Sending buffer information, including the current used space, maximum space, minimum space, and status.

Type

Type 2 socket, corresponding to unreliable connectionless-oriented transport layer protocols.

Enabled interfaces

Input interfaces and matched multicast MAC addresses. Only packets received from Ethernet link-layer interfaces need to match the multicast MAC addresses.

display osi statistics

Use display osi statistics to display OSI packet statistics.

Syntax

display osi statistics [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays OSI packet statistics for all member devices.

Examples

# Display OSI packet statistics.

<Sysname> display osi statistics

Received packets:

     Total: 35

     Relay received: 35

     Relay forwarded: 35

     Invalid service slot: 0

     No matched socket: 0

     Not delivered, input socket full: 0

Sent packets:

     Total: 19

     Relay forwarded: 19

     Relay received: 19

     Failed: 0

Table 31 Command output

Field

Description

Received packets

Statistics of received packets:

·     Total—Total number of received link layer packets.

·     Relay received—Number of inbound packets on the cards that host the input interfaces. These packets are relayed from other cards. This count is not included in the total count of received packets.

·     Relay forwarded—Number of inbound packets relayed to the cards that host the input interfaces.

·     Invalid service slot—Number of packets discarded because of the unavailability of the cards that host the input interfaces.

·     No matched socket—Number of discarded packets due to mismatches in input interfaces, MAC addresses, or connection filter criteria.

·     Not delivered, input socket full—Number of undelivered packets due to a socket receiving buffer overflow.

Sent packets

Statistics of sent packets:

·     Total—Total number of packets that IS-IS sent over OSI connections.

·     Relay forwarded—Number of outbound packets relayed to the cards that host the output interfaces. This count is not included in the total count of sent packets.

·     Relay received—Number of outbound packets on the cards that host the output interfaces. These packets are relayed from other cards.

·     Failed—Number of packets failed to be sent.

Related commands

reset osi statistics

distribute bgp-ls

Use distribute bgp-ls to advertise IS-IS link state information to BGP.

Use undo distribute bgp-ls to restore the default.

Syntax

distribute bgp-ls [ instance-id id ] [ level-1 | level-2 ]

undo distribute bgp-ls [ level-1 | level-2 ]

Default

The device does not advertise IS-IS link state information to BGP.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

instance-id id: Specifies an instance by its ID in the range of 0 to 65535. If you do not specify this option, the command advertises IS-IS link state information of instance 0 to BGP.

level-1: Advertises the Level-1 IS-IS link state information to BGP.

level-2: Advertises the Level-2 IS-IS link state information to BGP.

Usage guidelines

After the device advertises IS-IS link state information to BGP, BGP can advertise the information for intended applications.

If multiple IS-IS processes have the same instance ID and link state information, only the link state information of the IS-IS process with the smallest process ID is advertised.

To advertise the same link state information of different IS-IS processes to BGP, specify different instance IDs for the IS-IS processes.

If you do not specify a level for the distribute bgp-ls command, both Level-1 and Level-2 IS-IS link state information are advertised to BGP.

If you do not specify a level for the undo distribute bgp-ls command, neither Level-1 nor Level-2 IS-IS link state information can be advertised to BGP.

Examples

# Advertise link state information of IS-IS process 1 to BGP.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] distribute bgp-ls

domain-authentication send-only

Use domain-authentication send-only to configure IS-IS not to check the authentication information in the received Level-2 packets, including LSPs, CSNPs, and PSNPs.

Use undo domain-authentication send-only to restore the default.

Syntax

domain-authentication send-only

undo domain-authentication send-only

Default

When domain authentication mode and key are configured, a Level-2 or Level-1-2 router checks the authentication information in the received packets.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

When domain authentication mode and key are configured, a Level-2 or Level-1-2 router adds the key in the specified mode into transmitted Level-2 packets (including LSPs, CSNPs, and PSNPs). It also checks the key in the received Level-2 packets.

To prevent packet exchange failure in case of an authentication key change, configure IS-IS not to check the authentication information in the received packets.

Examples

# Configure IS-IS not to check the authentication information in the received packets.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] domain-authentication send-only

Related commands

area-authentication send-only

domain-authentication-mode

isis authentication send-only

domain-authentication-mode

Use domain-authentication-mode to specify the routing domain authentication mode and a key.

Use undo domain-authentication-mode to restore the default.

Syntax

domain-authentication-mode { { gca key-id { hmac-sha-1 | hmac-sha-224 | hmac-sha-256 | hmac-sha-384 | hmac-sha-512 } [ nonstandard ] | md5 | simple } { cipher | plain } string | keychain keychain-name } [ ip | osi ]

undo domain-authentication-mode

Default

No routing domain authentication mode or key is configured.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

gca: Specifies the GCA mode.

key-id: Uniquely identifies an SA in the range of 1 to 65535. The sender inserts the Key ID into the authentication TLV, and the receiver authenticates the packet by using the SA that is selected based on the Key ID.

hmac-sha-1: Specifies the HMAC-SHA-1 algorithm.

hmac-sha-224: Specifies the HMAC-SHA-224 algorithm.

hmac-sha-256: Specifies the HMAC-SHA-256 algorithm.

hmac-sha-384: Specifies the HMAC-SHA-384 algorithm.

hmac-sha-512: Specifies the HMAC-SHA-512 algorithm.

nonstandard: Specifies the nonstandard GCA authentication mode.

md5: Specifies the MD5 authentication mode.

simple: Specifies the simple authentication mode.

cipher: Specifies a key in encrypted form.

plain: Specifies a key in plaintext form. For security purposes, the key specified in plaintext form will be stored in encrypted form.

string: Specifies the key. Its plaintext form is a case-sensitive string of 1 to 16 characters. Its encrypted form is a case-sensitive string of 33 to 53 characters.

keychain: Specifies the keychain authentication mode.

keychain-name: Specifies a keychain by its name, a case-sensitive string of 1 to 63 characters.

ip: Checks IP-related fields in LSPs.

osi: Checks OSI-related fields in LSPs.

Usage guidelines

The configured key in the specified mode is inserted into all outgoing Level-2 packets (LSP, CSNP, and PSNP) and is used for authenticating the incoming Level-2 packets.

The keychain authentication mode supports only the HMAC-MD5 algorithm.

·     Before IS-IS sends a Level-2 packet, it uses the valid send key obtained from the keychain to authenticate the packet. If no valid send key exists or the valid send key does not use the HMAC-MD5 algorithm, the authentication fails and the packet does not contain the authentication information.

·     After IS-IS receives a Level-2 packet, it uses a valid accept key obtained from the keychain to authenticate the packet. If no valid accept key exists or all valid accept keys fail to authenticate the packet, the authentication fails and the packet is discarded.

A router configured with routing domain authentication can establish neighbor relationships with routers not configured with routing domain authentication, but it will discard LSPs not carrying the authentication information. In this situation, IS-IS might fail to learn the expected routes. To resolve this issue, configure the same authentication mode and key on all routers in the backbone area.

If neither ip nor osi is specified, the OSI-related fields in LSPs are checked.

When you specify the GCA mode, follow these guidelines:

·     If you do not specify the nonstandard keyword, the device can communicate only with devices that use the GCA mode.

·     If you specify the nonstandard keyword, the device can communicate only with devices that use the nonstandard GCA mode.

Examples

# Set the routing domain authentication mode to simple, and set the plaintext key to 123456.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] domain-authentication-mode plain 123456

Related commands

area-authentication-mode

domain-authentication send-only

isis authentication-mode

fast-reroute

Use fast-reroute to configure IS-IS FRR.

Use undo fast-reroute to disable IS-IS FRR.

Syntax

fast-reroute { lfa | route-policy route-policy-name }

undo fast-reroute

Default

IS-IS FRR is disabled.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

lfa: Calculates a backup next hop through Loop Free Alternate (LFA) calculation for all routes.

route-policy route-policy-name: Uses the specified routing policy to designate a backup next hop. The route-policy-name argument is a case-sensitive string of 1 to 63 characters.

Usage guidelines

ECMP routes do not support FRR.

The LFA calculation of FRR and IS-IS TE are mutually exclusive.

Example

# Enable FRR for IS-IS process 1 and configure IS-IS FRR to calculate a backup next hop through LFA calculation for all routes.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] fast-reroute lfa

filter-policy export

Use filter-policy export to configure IS-IS to filter redistributed routes.

Use undo filter-policy export to remove the configuration.

Syntax

filter-policy { acl-number | prefix-list prefix-list-name | route-policy route-policy-name } export [ protocol [ process-id ] ]

undo filter-policy export [ protocol [ process-id ] ]

Default

IS-IS does not filter redistributed routes.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter redistributed routes.

prefix-list prefix-list-name: Specifies a prefix list by its name, a case-sensitive string of 1 to 63 characters, to filter redistributed routes by destination address.

route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters, to filter redistributed routes.

protocol: Filters routes redistributed from the specified routing protocol. If no protocol is specified, the command filters all redistributed routes.

process-id: Specifies a process by its ID in the range of 1 to 65535. This argument is available only when the protocol is isis, ospf, rip, isisv6, ospfv3, or ripng. The default process ID is 1.

Usage guidelines

This command filters routes redistributed by the import-route command. Only routes that have not been filtered can be advertised.

To use an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using one of the following methods:

·     To deny/permit a route with the specified destination, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard command.

·     To deny/permit a route with the specified destination and mask, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.

The source keyword specifies the destination address of a route and the destination keyword specifies the subnet mask of the route. For the configuration to take effect, specify a contiguous subnet mask.

Examples

# Use basic ACL 2000 to filter redistributed routes.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] rule deny source 192.168.10.0 0.0.0.255

[Sysname-acl-ipv4-basic-2000] quit

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] filter-policy 2000 export

# Configure advanced ACL 3000 to permit only route 113.0.0.0/16 to pass. Use advanced ACL 3000 to filter redistributed routes.

<Sysname> system-view

[Sysname] acl advanced 3000

[Sysname-acl-ipv4-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0

[Sysname-acl-ipv4-adv-3000] rule 100 deny ip

[Sysname-acl-ipv4-adv-3000] quit

[Sysname] isis 1

[Sysname-isis 1] address-family ipv4

[Sysname-isis-1-ipv4] filter-policy 3000 export

Related commands

display isis route

filter-policy import

Use filter-policy import to configure IS-IS to filter routes calculated using received LSPs.

Use undo filter-policy import to restore the default.

Syntax

filter-policy { acl-number | prefix-list prefix-list-name | route-policy route-policy-name } import

undo filter-policy import

Default

IS-IS does not filter routes calculated using received LSPs.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter routes calculated using received LSPs.

prefix-list prefix-list-name: Specifies a prefix list by its name, a case-sensitive string of 1 to 63 characters, to filter routes calculated using received LSPs by destination address.

route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters, to filter received routes.

Usage guidelines

This command filters received routes. Only routes that have not been filtered can be added into the routing table.

To use an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using one of the following methods:

·     To deny/permit a route with the specified destination, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard command.

·     To deny/permit a route with the specified destination and mask, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.

The source keyword specifies the destination address of a route and the destination keyword specifies the subnet mask of the route. For the configuration to take effect, specify a contiguous subnet mask.

Examples

# Use basic ACL 2000 to filter routes calculated using received LSPs.

<Sysname> system-view

[Sysname] acl basic 2000

[Sysname-acl-ipv4-basic-2000] rule deny source 192.168.10.0 0.0.0.255

[Sysname-acl-ipv4-basic-2000] quit

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] filter-policy 2000 import

# Use advanced ACL 3000 to filter routes calculated using received LSPs and install only route 113.0.0.0/16 to the IP routing table.

<Sysname> system-view

[Sysname] acl advanced 3000

[Sysname-acl-ipv4-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0

[Sysname-acl-ipv4-adv-3000] rule 100 deny ip

[Sysname-acl-ipv4-adv-3000] quit

[Sysname] isis 1

[Sysname-isis 1] address-family ipv4

[Sysname-isis-1-ipv4] filter-policy 3000 import

Related commands

display ip routing-table

flash-flood

Use flash-flood to enable IS-IS LSP flash flooding.

Use undo flash-flood to disable IS-IS LSP flash flooding.

Syntax

flash-flood [ flood-count flooding-count | max-timer-interval flooding-interval | [ level-1 | level-2 ] ] *

undo flash-flood [ level-1 | level-2 ]

Default

IS-IS LSP flash flooding is disabled.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

flood-count flooding-count: Specifies the maximum number of LSPs to be flooded before the next SPF calculation, in the range of 1 to 15. The default is 5.

max-timer-interval flooding-interval: Specifies the delay of the flash flooding, in the range of 10 to 50000 milliseconds. The default is 10.

level-1: Enables flash flooding for Level-1.

level-2: Enables flash flooding for Level-2.

Usage guidelines

If no level is specified, the command enables IS-IS LSP flash flooding for both Level-1 and Level-2.

Examples

# Enable fast flooding, and set the maximum LSPs to be sent to 10 and the delay time to 100 milliseconds.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] flash-flood flood-count 10 max-timer-interval 100

graceful-restart

Use graceful-restart to enable IS-IS GR.

Use undo graceful-restart to disable IS-IS GR.

Syntax

graceful-restart

undo graceful-restart

Default

IS-IS GR is disabled.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

IS-IS GR and IS-IS NSR are mutually exclusive. Therefore, do not configure the graceful-restart command and the non-stop-routing command at the same time.

Examples

# Enable GR for IS-IS process 1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] graceful-restart

Related commands

graceful-restart suppress-sa

graceful-restart suppress-sa

Use graceful-restart suppress-sa to suppress the Suppress-Advertisement (SA) bit during restart.

Use undo graceful-restart suppress-sa to restore the default.

Syntax

graceful-restart suppress-sa

undo graceful-restart suppress-sa

Default

The SA bit is set during restart.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

Suppressing the SA bit is mainly for avoiding black hole route. If a router starts or reboots without keeping the local forwarding table, sending packets to the router might result in severe packet loss. To avoid this, you can set the SA bit of the hello packet sent by the GR restarter to 1. Upon receiving such hello packets, the GR helpers will not advertise the GR restarter through LSP.

Examples

# Suppress the SA bit during graceful restart.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] graceful-restart suppress-sa

Related commands

graceful-restart

graceful-restart t1

Use graceful-restart t1 to set the T1 timer.

Use undo graceful-restart t1 to restore the default.

Syntax

graceful-restart t1 seconds count count

undo graceful-restart t1

Default

The T1 timer is 3 seconds and can expire 10 times.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

seconds: Specifies the T1 timer in the range of 3 to 10 seconds.

count: Specifies the number of times that the T1 timer can expire, in the range of 1 to 20.

Usage guidelines

The T1 timer specifies the number of times that GR restarter can send a Restart TLV with the RR bit set. After restart, the GR restarter sends a Restart TLV with the RR bit set to its neighbor. If the restarting router receives a Restart TLV with the RA set from its neighbor before the T1 timer expires, the GR process starts. Otherwise, the GR process fails.

To avoid GR timer configuration failure, follow these guidelines when you set the GR timers:

·     The product of the T1 timer and the number of times that the T1 timer can expire must be smaller than the T2 timer.

·     The T2 timer must be smaller than the T3 timer.

Examples

# Set the T1 timer of IS-IS process 1 to 5 seconds, and the expiration times to 5.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] graceful-restart t1 5 count 5

Related commands

graceful-restart

graceful-restart t2

graceful-restart t3

graceful-restart t2

Use graceful-restart t2 to set the T2 timer.

Use undo graceful-restart t2 to restore the default.

Syntax

graceful-restart t2 seconds

undo graceful-restart t2

Default

The T2 timer is 60 seconds.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

seconds: Specifies the T2 timer in the range of 30 to 65535 seconds.

Usage guidelines

The T2 timer specifies the LSDB synchronization interval. Each LSDB has a T2 timer. The Level-1-2 router has two T2 timers: a Level-1 timer and a Level-2 timer. If the LSDBs have not achieved synchronization before the two timers expire, the GR process fails.

To avoid GR timer configuration failure, follow these guidelines when you set the GR timers:

·     The product of the T1 timer and the number of times that the T1 timer can expire must be smaller than the T2 timer.

·     The T2 timer must be smaller than the T3 timer.

Examples

# Set the T2 timer of IS-IS process 1 to 50 seconds.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] graceful-restart t2 50

Related commands

graceful-restart

graceful-restart t1

graceful-restart t3

graceful-restart t3

Use graceful-restart t3 to set the T3 timer.

Use undo graceful-restart t3 to restore the default.

Syntax

graceful-restart t3 seconds

undo graceful-restart t3

Default

The T3 timer is 300 seconds.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

seconds: Specifies the T3 timer in the range of 300 to 65535 seconds.

Usage guidelines

The T3 timer specifies the GR interval. The GR interval is set as the holdtime in hello PDUs. Within the interval, the neighbors maintain their adjacency with the GR restarter. If the GR process has not completed within the holdtime, the neighbors tear down the neighbor relationship and the GR process fails.

To avoid GR timer configuration failure, follow these guidelines when you set the GR timers:

·     The product of the T1 timer and the number of times that the T1 timer can expire must be smaller than the T2 timer.

·     The T2 timer must be smaller than the T3 timer.

Examples

# Set the T3 timer of IS-IS process 1 to 500 seconds.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] graceful-restart t3 500

Related commands

graceful-restart

graceful-restart t1

graceful-restart t2

ignore-att

Use ignore-att to configure IS-IS not to calculate the default route through the ATT bit.

Use undo ignore-att to restore the default.

Syntax

ignore-att

undo ignore-att

Default

IS-IS calculates the default route through the ATT bit.

Views

IS-IS view

Predefined user roles

network-admin

Examples

# Configure IS-IS not to calculate the default route through the ATT bit.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] ignore-att

import-route

Use import-route to redistribute routes from another routing protocol or another IS-IS process.

Use undo import-route to remove the redistribution.

Syntax

In IS-IS IPv4 unicast address family view:

 import-route bgp [ as-number ] [ allow-ibgp ] [ cost cost-value | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route bgp [ as-number ] [ allow-ibgp ] inherit-cost [ [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route { direct | static } [ cost cost-value | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route { direct | static } inherit-cost [ [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route { isis | ospf | rip } [ process-id | all-processes ] [ allow-direct | cost cost-value | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route { isis | ospf | rip } [ process-id | all-processes ] inherit-cost [ allow-direct | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

undo import-route { bgp | direct | { isis | ospf | rip } [ process-id | all-processes ] | static }

In IS-IS IPv6 unicast address family view:

import-route bgp4+ [ as-number ] [ allow-ibgp ] [ [ cost cost-value | inherit-cost ] | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route { direct | static } [ [ cost cost-value | inherit-cost ] | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

import-route { isisv6 | ospfv3 | ripng } [ process-id ] [ allow-direct | [ cost cost-value | inherit-cost ] | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *

undo import-route { bgp4+ | direct | { isisv6 | ospfv3 | ripng } [ process-id | all-processes ] | static }

Default

IS-IS does not redistribute routes from other routing protocols or processes.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

bgp: Redistributes BGP routes.

direct: Redistributes direct routes.

isis: Redistributes IS-IS routes.

ospf: Redistributes OSPF routes.

rip: Redistributes RIP routes.

static: Redistributes static routes.

bgp4+: Redistributes IPv6 BGP routes.

isisv6: Redistributes IPv6 IS-IS routes.

ospfv3: Redistributes OSPFv3 routes.

ripng: Redistributes RIPng routes.

as-number: Specifies an AS by its number in the range of 1 to 4294967295. If you do not specify this argument for the BGP or BGP4+ protocol, the command redistributes all IPv4 or IPv6 EBGP routes. As a best practice, specify an AS to prevent the system from redistributing excessive routes.

process-id: Specifies a process by its ID in the range of 1 to 65535.

all-processes: Redistributes routes from all the processes of the specified routing protocol.

allow-ibgp: Allows redistribution of IBGP routes.

allow-direct: Redistributes the networks of the local interfaces enabled with the specified routing protocol. By default, the networks of the local interfaces are not redistributed. If you specify both the allow-direct keyword and the route-policy route-policy-name option, make sure the if-match rule defined in the routing policy does not conflict with the allow-direct keyword. For example, if you specify the allow-direct keyword, do not configure the if-match route-type rule for the routing policy. Otherwise, the allow-direct keyword does not take effect.

cost cost-value: Specifies a cost for redistributed routes, which is in the range of 0 to 4261412864.

·     For the styles of narrow, narrow-compatible, and compatible, the cost is in the range of 0 to 63.

·     For the styles of wide and wide-compatible, the cost is in the range of 0 to 4261412864.

cost-type { external | internal }: Specifies the cost type. The internal type indicates internal routes, and the external type indicates external routes. If external is specified, the cost of a redistributed route is added by 64 to make internal routes take priority over external routes. The type is external by default. The keywords are available only when the cost type is narrow, narrow-compatible, or compatible.

inherit-cost: Specifies to use the original cost of redistributed routes.

level-1: Redistributes routes into the Level-1 routing table.

level-1-2: Redistributes routes into both Level-1 and Level-2 routing tables.

level-2: Redistributes routes into the Level-2 routing table. If no level is specified, the routes are redistributed into the Level-2 routing table by default.

route-policy route-policy-name: Redistributes only routes matching the specified routing policy. The route-policy-name argument is a case-sensitive string of 1 to 63 characters.

tag tag: Specifies a tag value for marking redistributed routes, in the range of 1 to 4294967295.

Usage guidelines

IS-IS takes all the redistributed routes as external routes to destinations outside the IS-IS routing domain.

If you specify the cost or inherit-cost keyword, the effective cost varies by cost style. For the styles of narrow, narrow-compatible, and compatible, the cost is in the range of 0 to 63. If the cost is more than 63, 63 is used. For the style of wide or wide-compatible, the configured value is the effective value.

This import-route command cannot redistribute default routes. The command redistributes only active routes. To display route state information, use the display ip routing-table protocol command.

The import-route bgp or import-route bgp4+ command redistributes only EBGP routes.

The import-route bgp allow-ibgp or import-route bgp4+ allow-ibgp command redistributes both EBGP and IBGP routes. Because this command might cause routing loops, use it with caution.

If you do not specify the cost or inherit-cost keyword, the cost of a redistributed route is 0.

The undo import-route { isis | ospf | rip } all-processes or undo import-route { isisv6 | ospfv3 | ripng } all-processes command removes only the configuration made by the import-route { isis | ospf | rip } all-processes or import-route { isisv6 | ospfv3 | ripng } all-processes command, instead of the configuration made by the import-route { isis | ospf | rip } process-id or import-route { isisv6 | ospfv3 | ripng } process-id command.

Examples

# Redistribute static routes into IS-IS, and set the cost for redistributed routes to 15.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] import-route static cost 15

Related commands

import-route limit

import-route isis level-1 into level-2

Use import-route isis level-1 into level-2 to enable route advertisement from Level-1 to Level-2.

Use undo import-route isis level-1 into level-2 to disable route advertisement from Level-1 to Level-2.

Syntax

import-route isis level-1 into level-2 [ filter-policy { ipv4-acl-number | prefix-list prefix-list-name | route-policy route-policy-name } | tag tag ] *

undo import-route isis level-1 into level-2

Default

Route advertisement from Level-1 to Level-2 is enabled.

Views

IS-IS IPv4 unicast address family view

Predefined user roles

network-admin

Parameters

filter-policy: Specifies a filtering policy.

ipv4-acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter routes from Level-1 to Level-2.

prefix-list prefix-list-name: Specifies an IPv4 prefix list by its name, a case-sensitive string of 1 to 63 characters, to filter routes from Level-1 to Level-2 by destination address.

route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters, to filter routes from Level-1 to Level-2.

tag tag: Specifies a tag for marking redistributed routes, in the range of 1 to 4294967295.

Usage guidelines

If a routing policy is used, the routing policy must be specified in the import-route isis level-1 into level-2 command to filter routes from Level-1 to Level-2. Other routing policies specified for route reception and redistribution do not affect the route leaking.

If a filtering policy is configured, only Level-1 routes not filtered out can be advertised into the Level-2 area.

Examples

# Enable route advertisement from Level-1 to Level-2.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] import-route isis level-1 into level-2

Related commands

import-route

import-route isis level-1 into level-2

import-route isis level-2 into level-1

Use import-route isis level-2 into level-1 to enable route advertisement from Level-2 to Level-1.

Use undo import-route isis level-2 into level-1 to restore the default.

Syntax

import-route isis level-2 into level-1 [ filter-policy { ipv4-acl-number | prefix-list prefix-list-name | route-policy route-policy-name } | tag tag ] *

undo import-route isis level-2 into level-1

Default

Route advertisement from Level-2 to Level-1 is disabled.

Views

IS-IS IPv4 unicast address family view

Predefined user roles

network-admin

Parameters

filter-policy: Specifies a filtering policy.

ipv4-acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter routes from Level-2 to Level-1.

prefix-list prefix-list-name: Specifies an IPv4 prefix list by its name, a case-sensitive string of 1 to 63 characters, to filter routes from Level-2 to Level-1 by destination address.

route-policy route-policy-name: Uses the specified routing policy to filter routes from Level-2 to Level-1. The route-policy-name argument is a case-sensitive string of 1 to 63 characters.

tag tag: Specifies a tag for marking redistributed routes, in the range of 1 to 4294967295.

Usage guidelines

If a routing policy is used, the routing policy must be specified in the import-route isis level-2 into level-1 command to filter routes from Level-2 to Level-1. Other routing policies specified for route reception and redistribution does not affect the route leaking.

If a filtering policy is configured, only Level-2 routes not filtered out can be advertised into the Level-1 area.

Examples

# Enable route advertisement from Level-2 to Level-1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] import-route isis level-2 into level-1

Related commands

import-route

import-route isis level-1 into level-2

import-route isisv6 level-1 into level-2

Use import-route isisv6 level-1 into level-2 to enable route advertisement from Level-1 to Level-2.

Use undo import-route isisv6 level-1 into level-2 to disable route advertisement from Level-1 to Level-2.

Syntax

import-route isisv6 level-1 into level-2 [ filter-policy { ipv6-acl-number | prefix-list prefix-list-name | route-policy route-policy-name } | tag tag ] *

undo import-route isisv6 level-1 into level-2

Default

Route advertisement from Level-1 to Level-2 is enabled.

Views

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

filter-policy: Specifies a filtering policy.

ipv6-acl-number: Specifies an IPv6 ACL by its number in the range of 2000 to 3999.

prefix-list prefix-list-name: Specifies an IPv6 prefix list by its name, a case-sensitive string of 1 to 63 characters.

route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters.

tag tag: Specifies an administrative tag for marking redistributed routes, in the range of 1 to 4294967295.

Usage guidelines

This command enables a Level-1-2 router to redistribute Level-1 routes to Level-2 routers and Level-1-2 routers in the local area.

Examples

# Enable route advertisement from Level-1 to Level-2.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv6

[Sysname-isis-1-ipv6] import-route isisv6 level-1 into level-2

import-route isisv6 level-2 into level-1

Use import-route isisv6 level-2 into level-1 to enable IPv6 IS-IS route advertisement from Level-2 to Level-1.

Use undo import-route isisv6 level-2 into level-1 to restore the default.

Syntax

import-route isisv6 level-2 into level-1 [ filter-policy { ipv6-acl-number | prefix-list prefix-list-name | route-policy route-policy-name } | tag tag ] *

undo import-route isisv6 level-2 into level-1

Default

Route advertisement from Level-2 to Level-1 is disabled.

Views

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

filter-policy: Specifies a filtering policy.

ipv6-acl-number: Specifies an IPv6 ACL by its number in the range of 2000 to 3999.

prefix-list prefix-list-name: Specifies an IPv6 prefix list by its name, a case-sensitive string of 1 to 63 characters.

route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters.

tag: Specifies an administrative tag for marking redistributed routes, in the range of 1 to 4294967295.

Usage guidelines

This command enables a Level-1-2 router to redistribute Level-2 routes to the Level-1 and Level-1-2 routers in the local area.

Examples

# Enable IPv6 IS-IS route advertisement from Level-2 to Level-1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv6

[Sysname-isis-1-ipv6] import-route isisv6 level-2 into level-1

import-route limit

Use import-route limit to configure the maximum number of redistributed Level 1/Level 2 routes.

Use undo import-route limit to restore the default.

Syntax

import-route limit number

undo import-route limit

Default

The maximum number of redistributed Level 1/Level 2 IPv4/IPv6 routes is not configured.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

number: Specifies the maximum number of redistributed Level 1/Level 2 routes.To set the maximum number of routes allowed in the IPv4/IPv6 routing table, configure uRPF and use the hardware-resource switch-mode or hardware-resource routing-mode ipv6-128 command. For more information about uRPF, see Security Configuration Guide. For more information about the hardware-resource switch-mode command, see Fundamentals Configuration Guide. For more information about the hardware-resource routing-mode ipv6-128 command, see Layer 3—IP Routing Configuration Guide.

Examples

# Configure IS-IS process 1 to redistribute up to 1000 Level 1/Level 2 routes.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] import-route limit 1000

Related commands

import-route

hardware-resource routing-mode ipv6-128

isis

Use isis to enable IS-IS and enter IS-IS view.

Use undo isis to disable IS-IS.

Syntax

isis [ process-id ] [ vpn-instance vpn-instance-name ]

undo isis [ process-id ]

Default

IS-IS is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. The default is 1.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If no VPN instance is specified, the IS-IS process runs on the public network.

Examples

# Enable IS-IS process 1 and set the system ID to 0000.0000.0002 and area ID to 01.0001.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] network-entity 01.0001.0000.0000.0002.00

Related commands

isis enable

network-entity

isis authentication send-only

Use isis authentication send-only to configure an IS-IS interface not to check the authentication information in the received hello packets.

Use undo isis authentication send-only to remove the configuration.

Syntax

isis authentication send-only [ level-1 | level-2 ]

undo isis authentication send-only [ level-1 | level-2 ]

Default

When interface authentication mode and key are configured, an IS-IS interface checks the authentication information in the received packets.

Views

Interface view

Predefined user roles

network-admin

Parameters

level-1: Configures IS-IS not to check the authentication information in the received Level-1 hello packets.

level-2: Configures IS-IS not to check the authentication information in the received Level-2 hello packets.

Usage guidelines

When peer authentication mode and key are configured, an IS-IS interface adds the key in the specified mode into transmitted hello packets. It also checks the key in the received hello packets.

To prevent packet exchange failure in case of an authentication key change, configure the IS-IS interface not to check the authentication information in the received packets.

Examples

# Configure VLAN-interface 10 not to check the authentication information in the received Level-1 hello packets.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis authentication send-only level-1

Related commands

area-authentication send-only

domain-authentication send-only

isis authentication-mode

isis authentication-mode

Use isis authentication-mode to specify the neighbor relationship authentication mode and a key.

Use undo isis authentication-mode to remove the configuration.

Syntax

isis authentication-mode { { gca key-id { hmac-sha-1 | hmac-sha-224 | hmac-sha-256 | hmac-sha-384 | hmac-sha-512 } [ nonstandard ] | md5 | simple } { cipher | plain } string | keychain keychain-name } [ level-1 | level-2 ] [ ip | osi ]

undo isis authentication-mode [ level-1 | level-2 ]

Default

No neighbor relationship authentication mode or key is configured.

Views

Interface view

Predefined user roles

network-admin

Parameters

gca: Specifies the GCA mode.

key-id: Uniquely identifies an SA in the range of 1 to 65535. The sender inserts the Key ID into the authentication TLV, and the receiver authenticates the packet by using the SA that is selected based on the Key ID.

hmac-sha-1: Specifies the HMAC-SHA-1 algorithm.

hmac-sha-224: Specifies the HMAC-SHA-224 algorithm.

hmac-sha-256: Specifies the HMAC-SHA-256 algorithm.

hmac-sha-384: Specifies the HMAC-SHA-384 algorithm.

hmac-sha-512: Specifies the HMAC-SHA-512 algorithm.

nonstandard: Specifies the nonstandard GCA mode.

md5: Specifies the MD5 authentication mode.

simple: Specifies the simple authentication mode.

cipher: Specifies a key in encrypted form.

plain: Specifies a key in plaintext form. For security purposes, the key specified in plaintext form will be stored in encrypted form.

string: Specifies the key. Its plaintext form is a case-sensitive string of 1 to 16 characters. Its encrypted form is a case-sensitive string of 33 to 53 characters.

keychain: Specifies the keychain authentication mode.

keychain-name: Specifies a keychain by its name, a case-sensitive string of 1 to 63 characters.

level-1: Configures the key for Level-1.

level-2: Configures the key for Level-2.

ip: Checks IP-related fields in LSPs and SNPs.

osi: Checks OSI-related fields in LSPs and SNPs.

Usage guidelines

The key in the specified mode is inserted into all outbound hello packets and is used for authenticating inbound hello packets. Only if the authentication succeeds can the neighbor relationship be formed.

The keychain authentication mode supports only the HMAC-MD5 algorithm.

·     Before IS-IS sends a Hello packet, it uses the valid send key obtained from the keychain to authenticate the packet. If no valid send key exists or the valid send key does not use the HMAC-MD5 algorithm, the authentication fails and the packet does not contain the authentication information.

·     After IS-IS receives a Hello packet, it uses a valid accept key obtained from the keychain to authenticate the packet. If no valid accept key exists or all valid accept keys fail to authenticate the packet, the authentication fails and the packet is discarded.

The level-1 and level-2 keywords are configurable on an interface that has had IS-IS enabled with the isis enable command.

If you configure a key without specifying a level, the key applies to both Level-1 and Level-2.

For two routers to become neighbors, the authentication mode and key at both ends must be identical.

If neither ip nor osi is specified, the OSI-related fields in LSPs are checked.

When you specify the GCA mode, follow these guidelines:

·     If you do not specify the nonstandard keyword, the device can communicate only with devices that use the GCA mode.

·     If you specify the nonstandard keyword, the device can communicate only with devices that use the nonstandard GCA mode.

Examples

# On VLAN-interface 10, set the authentication mode to simple, and set the plaintext key to 123456.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis authentication-mode simple plain 123456

Related commands

area-authentication-mode

domain authentication-mode

isis authentication send-only

isis bfd enable

Use isis bfd enable to enable BFD.

Use undo isis bfd enable to disable BFD.

Syntax

isis bfd enable

undo isis bfd enable

Default

IS-IS BFD is disabled.

Views

Interface view

Predefined user roles

network-admin

Examples

# Enable BFD for IS-IS on VLAN-interface 11.

<Sysname> system-view

[Sysname] interface vlan-interface 11

[Sysname-Vlan-interface11] isis enable

[Sysname-Vlan-interface11] isis bfd enable

isis circuit-level

Use isis circuit-level to set the circuit level for the interface.

Use undo isis circuit-level to restore the default.

Syntax

isis circuit-level [ level-1 | level-1-2 | level-2 ]

undo isis circuit-level

Default

An interface can establish either the Level-1 or Level-2 adjacency.

Views

Interface view

Predefined user roles

network-admin

Parameters

level-1: Sets the circuit level to Level-1.

level-1-2: Sets the circuit level to Level-1-2.

level-2: Sets the circuit level to Level-2.

Usage guidelines

For a Level-1 (Level-2) router, the circuit level can only be Level-1 (Level-2). For a Level-1-2 router, you must specify a circuit level for a specific interface to form only the specified level neighbor relationship.

Examples

# VLAN-interface 10 is connected to a non-backbone router in the same area. Set the circuit level of VLAN-interface 10 to Level-1 to prevent sending and receiving Level-2 Hello packets.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis enable

[Sysname-Vlan-interface10] isis circuit-level level-1

Related commands

is-level

isis circuit-type p2p

Use isis circuit-type p2p to set the network type of an interface to P2P.

Use undo isis circuit-type to restore the default.

Syntax

isis circuit-type p2p

undo isis circuit-type

Default

The network type of an interface varies by physical media. (The network type of a VLAN interface is broadcast.)

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

Use this command only on a broadcast network with two attached routers.

Interfaces with different network types operate differently. For example, broadcast interfaces must elect a DIS and flood CSNP packets to synchronize the LSDBs. P2P interfaces do not need to elect a DIS, and use a different LSDB synchronization mechanism.

If only two routers exist on a broadcast network, set the network type of attached interfaces to P2P to avoid DIS election and CSNP flooding. This saves network bandwidth and speeds up network convergence.

Examples

# Set the network type of VLAN-interface 10 to P2P.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis enable

[Sysname-Vlan-interface10] isis circuit-type p2p

isis cost

Use isis cost to set the IS-IS cost for an interface.

Use undo isis cost to remove the configuration.

Syntax

isis cost cost-value [ level-1 | level-2 ]

undo isis cost [ level-1 | level-2 ]

Default

No IS-IS cost is configured for an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

cost-value: Specifies an IS-IS cost in the range of 1 to 16777215.

level-1: Applies the cost to Level-1.

level-2: Applies the cost to Level-2.

Usage guidelines

If neither level-1 nor level-2 is included, the cost applies to both Level-1 and Level-2.

Examples

# Set the Level-2 IS-IS cost to 5 for VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis cost 5 level-2

Related commands

auto-cost enable

bandwidth-reference

isis dis-name

Use isis dis-name to configure a name for a DIS to represent the pseudo node on a broadcast network.

Use undo isis dis-name to restore the default.

Syntax

isis dis-name symbolic-name

undo isis dis-name

Default

No name is configured for the DIS.

Views

Interface view

Predefined user roles

network-admin

Parameters

symbolic-name: Specifies a DIS name, a case-insensitive string of 1 to 64 characters.

Usage guidelines

This command takes effect only on routers that have dynamic system ID to host name mapping enabled. This command does not take effect on Point-to-Point interfaces.

Examples

# Set the DIS name to LOCALAREA.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis dis-name LOCALAREA

Related commands

display isis name-table

is-name

isis dis-priority

Use isis dis-priority to specify a DIS priority at a specified level for an interface.

Use undo isis dis-priority to remove the configuration.

Syntax

isis dis-priority priority [ level-1 | level-2 ]

undo isis dis-priority [ level-1 | level-2 ]

Default

The priority of Level-1 and Level-2 is 64.

Views

Interface view

Predefined user roles

network-admin

Parameters

priority: Specifies a DIS priority in the range of 0 to 127.

level-1: Applies the DIS priority to Level-1.

level-2: Applies the DIS priority to Level-2.

Usage guidelines

On an IS-IS broadcast network, a router must be elected as the DIS at each routing level. Specify a DIS priority at a level for an interface. The greater the interface's priority is, the more likelihood it becomes the DIS. If multiple routers in the broadcast network have the same highest DIS priority, the router with the highest Subnetwork Point of Attachment (SNPA) address becomes the DIS. SNPA addresses are MAC addresses on a broadcast network.

IS-IS has no backup DIS. The router with a priority of 0 can also participate in DIS election.

If neither level-1 nor level-2 is specified, the DIS priority applies to both Level-1 and Level-2.

Examples

# Set the Level-2 DIS priority to 127 for VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis dis-priority 127 level-2

isis enable

Use isis enable to enable an IS-IS process on an interface.

Use undo isis enable to disable IS-IS.

Syntax

isis enable [ process-id ]

undo isis enable

Default

No IS-IS process is enabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. The default is 1.

Examples

# Enable IS-IS process 1 globally and enable it on VLAN-interface 10.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] network-entity 10.0001.1010.1020.1030.00

[Sysname-isis-1] quit

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis enable 1

Related commands

isis

network-entity

isis fast-reroute lfa-backup exclude

Use isis fast-reroute lfa-backup exclude to disable LFA calculation on an interface.

Use undo isis fast-reroute lfa-backup exclude to restore the default.

Syntax

isis fast-reroute lfa-backup exclude

undo isis fast-reroute lfa-backup exclude

Default

LFA calculation is enabled on an interface, and the interface can be elected as a backup interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

When this command is configured, the interface does not participate in the LFA calculation, and cannot be elected as a backup interface.

Examples

# Disable LFA calculation on VLAN-interface 10.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] network-entity 10.0001.1010.1020.1030.00

[Sysname-isis-1] quit

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis enable 1

[Sysname-Vlan-interface10] isis fast-reroute lfa-backup exclude

Related commands

fast-reroute

isis ipv6 bfd enable

Use isis ipv6 bfd enable to enable BFD for IPv6 IS-IS.

Use undo isis ipv6 bfd enable to disable BFD for IPv6 IS-IS.

Syntax

isis ipv6 bfd enable

undo isis ipv6 bfd enable

Default

BFD for IPv6 IS-IS is disabled.

Views

Interface view

Predefined user roles

network-admin

Examples

# Enable BFD for IPv6 IS-IS on VLAN-interface 11.

<Sysname> system-view

[Sysname] interface vlan-interface 11

[Sysname-Vlan-interface11] isis ipv6 bfd enable

isis ipv6 cost

Use isis ipv6 cost to set the IPv6 IS-IS cost for an interface.

Use undo isis ipv6 cost to remove the configuration.

Syntax

isis ipv6 cost cost-value [ level-1 | level-2 ]

undo isis ipv6 cost [ level-1 | level-2 ]

Default

No IPv6 IS-IS cost is configured for an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

cost-value: Specifies an IPv6 IS-IS cost in the range of 1 to 16777215.

level-1: Applies the cost to Level-1 routes.

level-2: Applies the cost to Level-2 routes.

Usage guidelines

This command applies to interfaces that are enabled with IPv6 IS-IS.

This command takes effect only when the standard MTR mode is enabled.

Examples

# Set the IPv6 IS-IS cost to 10 for VLAN-interface 11.

<Sysname> system-view

[Sysname] isis 100

[Sysname-isis-100] address-family ipv6 unicast

[Sysname-isis-100-ipv6] quit

[Sysname-isis-100] quit

[Sysname] interface vlan-interface 11

[Sysname-Vlan-interface11] isis ipv6 enable 100

[Sysname-Vlan-interface11] isis ipv6 cost 10

isis ipv6 enable

Use isis ipv6 enable to enable IPv6 for IS-IS on an interface.

Use undo isis ipv6 enable to disable IPv6 for IS-IS on an interface.

Syntax

isis ipv6 enable [ process-id ]

undo isis ipv6 enable

Default

IPv6 is disabled for IS-IS on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. The default is 1.

Examples

# Enable IPv6 for IS-IS on VLAN-interface 100.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] network-entity 10.0001.1010.1020.1030.00

[Sysname-isis-1] address-family ipv6 unicast

[Sysname-isis-1-ipv6] quit

[Sysname-isis-1] quit

[Sysname] interface vlan-interface 100

[Sysname-Vlan-interface100] ipv6 address 2002::1/64

[Sysname-Vlan-interface100] isis ipv6 enable 1

isis ipv6 fast-reroute lfa-backup exclude

Use isis ipv6 fast-reroute lfa-backup exclude to disable LFA calculation on an interface.

Use undo isis ipv6 fast-reroute lfa-backup exclude to restore the default.

Syntax

isis ipv6 fast-reroute lfa-backup exclude

undo isis ipv6 fast-reroute lfa-backup exclude

Default

LFA calculation is enabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Examples

# Disable LFA calculation on VLAN-interface 10.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] network-entity 10.0001.1010.1020.1030.00

[Sysname-isis-1] quit

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis ipv6 enable 1

[Sysname-Vlan-interface10] isis ipv6 fast-reroute lfa-backup exclude

Related commands

fast-reroute

isis ipv6 prefix-suppression

Use isis ipv6 prefix-suppression to enable prefix suppression on an interface.

Use undo isis ipv6 prefix-suppression to disable prefix suppression on an interface.

Syntax

isis ipv6 prefix-suppression

undo isis ipv6 prefix-suppression

Default

Prefix suppression is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

By default, IS-IS interfaces advertise their IPv6 prefixes in LSPs. Use this command to disable an interface from advertising its IPv6 prefix in LSPs. This enhances network security by preventing IP routing to the internal nodes and speeds up network convergence.

Examples

# Enable prefix suppression on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis ipv6 prefix-suppression

isis ipv6 primary-path-detect bfd

Use isis ipv6 primary-path-detect bfd to enable BFD for IPv6 IS-IS.

Use undo isis ipv6 primary-path-detect bfd to disable BFD for IPv6 IS-IS.

Syntax

isis ipv6 primary-path-detect bfd { ctrl | echo }

undo isis ipv6 primary-path-detect bfd

Default

BFD is disabled for IPv6 IS-IS.

Views

Interface view

Predefined user roles

network-admin

Parameters

ctrl: Enables BFD control packet mode.

echo: Enables BFD echo packet mode.

Usage guidelines

This command enables IPv6 IS-IS FRR or IPv6 IS-IS PIC to use BFD to detect primary link failures.

Examples

# Enable BFD control packet mode for IPv6 IS-IS FRR on VLAN-interface 10.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv6

[Sysname-isis-1-ipv6] fast-reroute lfa

[Sysname-isis-1-ipv6] quit

[Sysname-isis-1] quit

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis ipv6 primary-path-detect bfd ctrl

# Enable BFD echo packet mode for IPv6 IS-IS PIC on VLAN-interface 11.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] pic additional-path-always

[Sysname-isis-1] quit

[Sysname] bfd echo-source-ipv6 1::1

[Sysname] interface vlan-interface 11

[Sysname-Vlan-interface11] isis ipv6 primary-path-detect bfd echo

isis ipv6 tag

Use isis ipv6 tag to configure the tag value on an interface.

Use undo isis ipv6 tag to restore the default.

Syntax

isis ipv6 tag tag

undo isis ipv6 tag

Default

No tag value is configured on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

tag: Specifies a tag value in the range of 1 to 4294967295.

Usage guidelines

When IS-IS advertises an IPv6 prefix with a tag value, it adds the tag to the IPv6 reachability information TLV, regardless of the link cost style.

Examples

# Set the tag value on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis ipv6 tag 4294967295

isis mib-binding

Use isis mib-binding to bind an IS-IS process to MIB.

Use undo  isis mib-binding to restore the default.

Syntax

isis mib-binding process-id

undo isis mib-binding

Default

MIB operation is bound to the IS-IS process with the smallest process ID.

Views

System view

Predefined user roles

network-admin

Parameters

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535.

Usage guidelines

If the specified the process ID does not exist, the MIB binding configuration fails.

Deleting an IS-IS process bound to MIB operation deletes the MIB binding configuration. MIB operation is bound to the IS-IS process with the smallest process ID.

Examples

# Bind IS-IS process 100 to MIB.

<Sysname> system-view

[Sysname] isis mib-binding 100

isis prefix-suppression

Use isis prefix-suppression to enable prefix suppression on an interface.

Use undo isis prefix-suppression to disable prefix suppression on an interface.

Syntax

isis prefix-suppression

undo isis prefix-suppression

Default

Prefix suppression is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

Use this command to disable an interface from advertising its prefix in LSPs. This enhances network security by preventing IP routing to the interval nodes and speeds up network convergence.

This command is also applicable to the secondary IP address of the interface.

Examples

# Enable prefix suppression on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis prefix-suppression

isis primary-path-detect bfd

Use isis primary-path-detect bfd to enable BFD for IS-IS FRR or IS-IS PIC.

Use undo isis primary-path-detect bfd to disable BFD for IS-IS FRR or IS-IS PIC.

Syntax

isis primary-path-detect bfd { ctrl | echo }

undo isis primary-path-detect bfd

Default

BFD is disabled for IS-IS FRR or IS-IS PIC.

Views

Interface view

Predefined user roles

network-admin

Parameters

ctrl: Specifies the BFD control packet mode.

echo: Specifies the BFD echo packet mode.

Usage guidelines

This command enables IS-IS FRR or IS-IS PIC to use BFD to detect primary link failures.

Examples

# Enable BFD control packet mode for IS-IS FRR on VLAN-interface 10.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] address-family ipv4

[Sysname-isis-1-ipv4] fast-reroute lfa

[Sysname-isis-1-ipv4] quit

[Sysname-isis-1] quit

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis primary-path-detect bfd ctrl

# Enable BFD echo packet mode for IS-IS PIC on VLAN-interface 11.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] pic additional-path-always

[Sysname-isis-1] quit

[Sysname] bfd echo-source-ip 1.1.1.1

[Sysname] interface vlan-interface 11

[Sysname-Vlan-interface11] isis primary-path-detect bfd echo

isis silent

Use isis silent to disable the interface from sending and receiving IS-IS packets.

Use undo isis silent to restore the default.

Syntax

isis silent

undo isis silent

Default

An interface can send and receive IS-IS packets.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

This command is not available in loopback interface view.

Examples

# Disable VLAN-interface 10 from sending and receiving IS-IS packets.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis silent

isis small-hello

Use isis small-hello to configure the interface to send small hello packets without CLVs.

Use undo isis small-hello to restore the default.

Syntax

isis small-hello

undo isis small-hello

Default

An interface sends standard hello packets.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

This command is not available in loopback interface view.

Examples

# Configure VLAN-interface 10 to send small Hello packets.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis small-hello

isis tag

Use isis tag to configure the tag value for an interface.

Use undo isis tag to restore the default.

Syntax

isis tag tag

undo isis tag

Default

The interface is not configured with a tag value.

Views

Interface view

Predefined user roles

network-admin

Parameters

tag: Specifies the tag value in the range of 1 to 4294967295.

Usage guidelines

When IS-IS advertises an IP prefix with a tag value, it adds the tag to the IP reachability information TLV if the link cost style is wide, wide-compatible, or compatible.

Examples

# Configure the tag value for VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis tag 4294967295

isis timer csnp

Use isis timer csnp to set on the DIS of a broadcast network the interval for sending CSNP packets.

Use undo isis timer csnp to remove the configuration.

Syntax

isis timer csnp seconds [ level-1 | level-2 ]

undo isis timer csnp [ level-1 | level-2 ]

Default

The default CSNP interval is 10 seconds.

Views

Interface view

Predefined user roles

network-admin

Parameters

seconds: Specifies on the DIS of a broadcast network the interval for sending CSNP packets. The value range is 1 to 600 seconds.

level-1: Applies the interval to Level-1.

level-2: Applies the interval to Level-2.

Usage guidelines

On a broadcast network, this command only applies to the DIS, because the DIS sends CSNP packets periodically for LSDB synchronization.

If no level is specified, the CSNP interval applies to both Level-1 and Level-2.

Examples

# Configure Level-2 CSNP packets to be sent every 15 seconds over VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis timer csnp 15 level-2

isis timer hello

Use isis timer hello to set the interval for sending hello packets.

Use undo isis timer hello to remove the configuration.

Syntax

isis timer hello seconds [ level-1 | level-2 ]

undo isis timer hello [ level-1 | level-2 ]

Default

The hello interval is 10 seconds.

Views

Interface view

Predefined user roles

network-admin

Parameters

seconds: Specifies the interval for sending hello packets, in the range of 1 to 255 seconds.

level-1: Specifies the interval for sending Level-1 hello packets.

level-2: Specifies the interval for sending Level-2 hello packets.

Usage guidelines

If a neighbor does not receive any hello packets from the router within the advertised hold time, it considers the router down and recalculates the routes. The hold time is the hello multiplier multiplied by the hello interval.

Level-1 and Level-2 hello packets are sent independently on a broadcast network, so you need to specify an interval for each level. On a P2P link, Level-1 and Level-2 packets are both sent in P2P hello packets, and you need not specify an interval for each level.

You can configure the level-1 and level-2 keywords only on broadcast interfaces. Before you configure the level-1 or level-2 keyword, enable IS-IS on the interface.

The shorter the interval, the more system resources will be occupied.

If no level is specified, the hello interval applies to both Level-1 and Level-2.

Examples

# Configure Level-2 hello packets to be sent every 20 seconds over VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis timer hello 20 level-2

Related commands

isis timer holding-multiplier

isis timer holding-multiplier

Use isis timer holding-multiplier to set the IS-IS hello multiplier.

Use undo isis timer holding-multiplier to remove the configuration.

Syntax

isis timer holding-multiplier value [ level-1 | level-2 ]

undo isis timer holding-multiplier [ level-1 | level-2 ]

Default

The default IS-IS hello multiplier is 3.

Views

Interface view

Predefined user roles

network-admin

Parameters

value: Specifies the number of hello intervals, in the range of 3 to 1000.

level-1: Applies the number to the Level-1 IS-IS neighbor.

level-2: Applies the number to the Level-2 IS-IS neighbor.

Usage guidelines

The hello multiplier is the number of hello packets a neighbor must miss before declaring the router is down.

If a neighbor does not receive any hello packets from the router within the advertised hold time, it considers the router down and recalculates the routes. The hold time is the hello multiplier multiplied by the hello interval.

Level-1 and Level-2 hello packets are sent independently on a broadcast network, so you need to specify a hello multiplier for each level. On a P2P link, Level-1 and Level-2 packets are both sent in P2P hello packets, and you need not specify Level-1 or Level-2.

You can configure the level-1 and level-2 keywords only on broadcast interfaces. Before you configure the level-1 or level-2 keyword, enable IS-IS on the interface.

If no level is specified, the hello multiplier applies to both Level-1 and Level-2.

The value of hello multiplier multiplied by hello interval cannot be more than 65535.

Examples

# Set the hello multiplier to 6 for VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis timer holding-multiplier 6

Related commands

isis timer hello

isis timer lsp

Use isis timer lsp to set the minimum interval for sending LSPs on the interface and specify the maximum number of LSPs that can be sent per time.

Use undo isis timer lsp to restore the default.

Syntax

isis timer lsp time [ count count ]

undo isis timer lsp

Default

The minimum interval for sending LSPs on the interface is 33 milliseconds, and the maximum number of LSPs that can be sent at a time is 5.

Views

Interface view

Predefined user roles

network-admin

Parameters

time: Specifies the minimum interval for sending link-state packets, in the range of 1 to 1000 milliseconds.

count: Specifies the maximum number of link-state packets to be sent at one time, in the range of 1 to 1000.

Usage guidelines

If a change occurs in the LSDB, IS-IS advertises the changed LSP to neighbors. You can specify the minimum interval for sending these LSPs to control the amount of LSPs on the network.

Examples

# Set the interval to 500 milliseconds for sending LSPs on VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis timer lsp 500

Related commands

isis timer retransmit

isis timer retransmit

Use isis timer retransmit to configure the interval for retransmitting LSP packets over a point-to-point link.

Use undo isis timer retransmit to restore the default.

Syntax

isis timer retransmit seconds

undo isis timer retransmit

Default

The retransmission interval on a P2P link is 5 seconds.

Views

Interface view

Predefined user roles

network-admin

Parameters

seconds: Specifies the interval for retransmitting LSP packets, in the range of 1 to 300 seconds.

Usage guidelines

On a P2P link, IS-IS requires an advertised LSP be acknowledged. If no acknowledgment is received within a configurable interval, IS-IS will retransmit the LSP.

You do not need to use this command over a broadcast link where CSNPs are periodically broadcast to implement LSDB synchronization.

Examples

# Set the LSP retransmission interval on a P2P link to 50 seconds for VLAN-interface 10.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] isis circuit-type p2p

[Sysname-Vlan-interface10] isis timer retransmit 50

Related commands

isis circuit-type p2p

isis timer lsp

is-level

Use is-level to specify the IS level.

Use undo is-level to restore the default.

Syntax

is-level { level-1 | level-1-2 | level-2 }

undo is-level

Default

The IS level is level-1-2.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

level-1: Specifies Level-1, which means IS-IS only calculates intra-area routes and maintains the Level-1 LSDB.

level-1-2: Specifies Level-1-2, which means IS-IS calculates routes and maintains the LSDBs for both Level-1 and Level-2.

level-2: Specifies Level-2, which means IS-IS calculates routes and maintains the LSDB for Level-2 only.

Usage guidelines

If only one area exists, configure all the routers as either Level-1 or Level-2, because the routers do not need to maintain two identical LSDBs at the same time.

If the only area is an IP network, configure all the routers as Level-2 for scalability.

Examples

# Set the IS level to Level-1 for IS-IS process 1.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] is-level level-1

is-name

Use is-name to specify a host name for the IS and enable dynamic system ID to hostname mapping.

Use undo is-name to disable dynamic system ID to hostname mapping.

Syntax

is-name sys-name

undo is-name

Default

Dynamic system ID to hostname mapping is disabled, and no host name is configured for the IS.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

sys-name: Specifies a host name for the local IS, a case-insensitive string of 1 to 64 characters.

Usage guidelines

To display the host name rather than the system ID of an IS by using the display isis lsdb command, first enable dynamic system ID to hostname mapping.

Examples

# Configure a host name for the local IS.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] is-name RUTA

Related commands

display isis name-table

is-name map

Use is-name map to configure a system ID to host name mapping for a remote IS.

Use undo is-name map to remove the mapping.

Syntax

is-name map sys-id map-sys-name

undo is-name map sys-id

Default

No system ID to host name mapping is configured for a remote IS.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

sys-id: Specifies the system ID or pseudonode ID of a remote IS.

map-sys-name: Specifies a host name for the remote IS, a case-insensitive string of 1 to 64 characters.

Usage guidelines

Each remote IS system ID corresponds to only one name.

Examples

# Map the host name RUTB to the system ID 0000.0000.0041 of the remote IS.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] is-name map 0000.0000.0041 RUTB

Related commands

display isis name-table

ispf enable

Use ispf enable to enable incremental SPF (ISPF).

Use undo ispf enable to disable ISPF.

Syntax

ispf enable

undo ispf enable

Default

IS-IS ISPF is enabled.

Views

IS-IS view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Usage guidelines

When a network topology is changed, ISPF recomputes only the affected part of the SPT, instead of the entire SPT.

Examples

# Enable ISPF.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] ispf enable

log-peer-change

Use log-peer-change to enable the logging of neighbor state changes.

Use undo log-peer-change to disable the logging.

Syntax

log-peer-change

undo log-peer-change

Default

The logging of IS-IS neighbor state changes is enabled.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

This command enables sending logs about IS-IS neighbor state changes to the information center. For IS-IS neighbor state change logs to be sent correctly, you must also configure the information center parameters on the device. For more information about information center, see the network management and monitoring configuration guide for the device.

Examples

# Disable the logging of IS-IS neighbor state changes.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] undo log-peer-change

lsp-fragments-extend

Use lsp-fragments–extend to enable LSP fragment extension for a level.

Use undo lsp-fragments–extend to restore the default.

Syntax

lsp-fragments-extend [ level-1 | level-1-2 | level-2 ]

undo lsp-fragments-extend

Default

LSP fragment extension is disabled.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

level-1: Applies the fragment extension to Level-1 LSPs.

level-1-2: Applies the fragment extension to both Level-1 and Level-2 LSPs.

level-2: Applies the fragment extension to Level-2 LSPs.

Usage guidelines

If no level is specified, the command enables LSP fragment extension for both Level-1 and Level-2.

Examples

# Enable LSP fragment extension for Level-2.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] lsp-fragments-extend level-2

lsp-length originate

Use lsp-length originate to configure the maximum size of generated Level-1 or Level-2 LSPs.

Use undo lsp-length originate to remove the configuration.

Syntax

lsp-length originate size [ level-1 | level-2 ]

undo lsp-length originate [ level-1 | level-2 ]

Default

The maximum size of generated Level-1 and Level-2 LSPs is 1497 bytes.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

size: Specifies the maximum size of LSP packets, in the range of 512 to 16384 bytes.

level-1: Applies the size to Level-1 LSP packets.

level-2: Applies the size to Level-2 LSP packets.

Usage guidelines

If neither Level-1 nor Level-2 is specified in the command, the configured maximum size applies to the current IS-IS level.

Examples

# Set the maximum size of the generated Level-2 LSPs to 1024 bytes.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] lsp-length originate 1024 level-2

lsp-length receive

Use lsp-length receive to configure the maximum size of received LSPs.

Use undo lsp-length receive to restore the default.

Syntax

lsp-length receive size

undo lsp-length receive

Default

The maximum size of received LSPs is 1497 bytes.

Views

IS-IS view

Predefined user roles

network-admin

Parameters

size: Specifies the maximum size of received LSPs, in the range of 512 to 16384 bytes.

Examples

# Configure the maximum size of received LSPs to 1024 bytes.

<Sysname> system-view

[Sysname] isis 1

[Sysname-isis-1] lsp-length receive 1024

maximum load-balancing

Use maximum load-balancing to configure the maximum number of ECMP routes for load balancing.

Use undo maximum load-balancing to restore the default.

Syntax

maximum load-balancing number

undo maximum load-balancing

Default

The maximum number of IS-IS ECMP routes equals the maximum number of ECMP routes supported by the system.

Views

IS-IS IPv4 unicast address family view

IS-IS IPv6 unicast address family view

Predefined user roles

network-admin

Parameters

number: Specifies the maximum number of ECMP routes. The value of 1 indicates that IS-IS does not perform load balancing.The value range for this argument is 1 to 128.

Examples

# Set the maximum number of ECMP routes to 2.

<Sysname> system-view

[Sysname] isis 100

[Sysname-isis-100] address-family ipv4

[Sysname-isis-100-ipv4] maximum load-balancing 2

multi-topology

Use multi-topology to enable IPv6 IS-IS MTR.

Use undo multiple-topology to disable IPv6 IS-IS MTR.

Syntax

multi-topology [ compatible ]

undo multi-topology

Default

IPv6 IS-IS MTR is disabled.

Views

IS-IS IPv6 address family view

Predefined user roles

network-admin

Parameters

compatible: Specifies the compatible mode to advertise IPv6 prefixes to both IPv4 and IPv6 topologies. If you do not specify this keyword, the command adv