· These interface types support MPLS capability and LDP capability: Layer 3 Ethernet interface (GE interface and XGE interface), ATM interface, POS interface, Layer 3 aggregate interface, Mp-group interface, MFR interface, tunnel interface, HDLC interface, VLAN interface, and RPR logical interface.

· Except for the commands for the LDP GR feature, all commands in MPLS LDP view are available in MPLS LDP VPN instance view. The difference is that the commands serve the public network LDP in MPLS LDP view but serve the MPLS LDP VPN instance in MPLS LDP VPN instance view.

accept-label

Syntax

accept-label peer peer-id ip-prefix ip-prefix-name

undo accept-label peer peer-id

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

peer peer-id: Specifies an LDP peer. peer-id is the LSR ID of the LDP peer.

ip-prefix ip-prefix-name: Specifies the IP prefix list to be used for filtering received FEC-label bindings. ip-prefix-name is the name of the IP prefix list, a string of 1 to 19 characters. For how to create an IP prefix list, see Layer 3—IP Routing Command Reference.

Description

Use the accept-label command to configure a label acceptance control policy.

Use the undo accept-label command to restore the default.

By default, an LSR accepts all label bindings received from its LDP peers.

A label acceptance control policy is for filtering the FEC-label bindings received. With such a policy configured, an upstream LSR filters the label bindings received from the specified downstream LSR by the specified IP prefix list, and accepts and saves only bindings with the FEC destinations permitted by the specified IP prefix list.

When the label acceptance control configuration on an LSR is changed, for example, the label acceptance control policy is deleted by using the undo accept-label command, you need to execute the reset mpls ldp command to reset LDP sessions, so that the downstream LSR re-advertises its label bindings and the upstream LSR can obtain the label bindings not accepted before.

Examples

# Configure the router to accept only the label bindings of FECs with destination addresses on segments 10.1.1.0/24 and 10.2.1.0/24 from LDP peer 1.1.1.9.

<Sysname> system-view

[Sysname] ip ip-prefix prefix-from-RTA index 1 permit 10.1.1.0 24

[Sysname] ip ip-prefix prefix-from-RTA index 2 permit 10.2.1.0 24

[Sysname] mpls ldp

[Sysname-mpls-ldp] accept-label peer 1.1.1.9 ip-prefix prefix-from-RTA

advertise-label

Syntax

advertise-label ip-prefix ip-prefix-name [ peer peer-ip-prefix-name ]

undo advertise-label ip-prefix ip-prefix-name

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

ip-prefix ip-prefix-name: Specifies an IP prefix list to be used for filtering the label bindings to be advertised. ip-prefix-name is the name of the IP prefix list, a string of 1 to 19 characters. For how to create an IP prefix list, see Layer 3—IP Routing Command Reference.

peer peer-ip-prefix-name: Specifies a list of LDP peers. peer-ip-prefix-name is the IP prefix list name, a string of 1 to 19 characters. If you do not specify the LDP peer list, the label advertisement control policy is for all LDP peers.

Description

Use the advertise-label command to configure a label advertisement control policy.

Use the undo advertise-label command to restore the default.

By default, an LSR does not filter label bindings to be advertised.

When advertising label bindings to peers, an LSR follows these rules:

· If the IP prefix of a label binding to be advertised fails the IP prefix checking, the LSR does not advertise the label binding to any peer.

· If the IP prefix of a label binding to be advertised passes the IP prefix checking and the peer list is not specified, the LSR will advertise the label binding to all peers.

· If the IP prefix of a label binding to be advertised passes the IP prefix checking and a peer list is specified, the LSR will advertise the label binding to the peers that pass the peer list checking.

· If the IP prefix of a label binding to be advertised passes the checking of more than one IP prefix lists, which are specified by executing the advertise-label command for multiple times, the LSR will advertise the label binding based on the configuration by the first advertise-label command.

Examples

# Configure label advertisement control policies so that the router:

· Advertises label bindings for FEC 10.1.1.0/24 to the LDP peer with the LSR ID 3.3.3.9.

· Advertises label bindings for FEC 10.2.1.0/24 to the LDP peer with the LSR ID 4.4.4.9.

· Does not advertise label bindings of other segments to any peers.

<Sysname> system-view

[Sysname] ip ip-prefix prefix-to-C permit 10.1.1.0 24

[Sysname] ip ip-prefix prefix-to-D permit 10.2.1.0 24

[Sysname] ip ip-prefix peerC permit 3.3.3.9 32

[Sysname] ip ip-prefix peerD permit 4.4.4.9 32

[Sysname] mpls ldp

[Sysname-mpls-ldp] advertise-label ip-prefix prefix-to-C peer peer-C

[Sysname-mpls-ldp] advertise-label ip-prefix prefix-to-D peer peer-D

bfd enable

Syntax

bfd enable destination-address mask-length [ nexthop nexthop-address [ discriminator local local-id remote remote-id ] ]

undo bfd enable destination-address mask-length [ nexthop nexthop-address ]

View

MPLS LSPV view

Default level

2: System level

Parameters

destination-address mask-length: Specifies a FEC by a destination address and the mask length of the destination address. The mask-length argument ranges from 0 to 32.

nexthop nexthop-address: Specifies a next hop address for the FEC. If you specify a next hop address, the BFD detects the specified LSP; if you do not specify it, the BFD detects all LSPs for the FEC.

discriminator: Specifies the discriminator values of the BFD session.

local local-id: Specifies the local discriminator value of the BFD session.

remote remote-id: Specifies the remote discriminator value of the BFD session. The value ranges from 1 to 4294967295.

Description

Use the bfd enable command to enable BFD to detect the connectivity of the LSPs for a FEC.

Use the undo bfd enable command to disable BFD detection of the LSP connectivity for a FEC.

By default, BFD detection for LSPs is disabled.

Enable LSP verification by using the mpls lspv command before executing the bfd enable command.

The BFD session parameters are those configured on the loopback interface whose IP address is configured as the MPLS LSR ID, and the BFD packets use the MPLS LSR ID as the source address. Therefore, before enabling BFD for an LSP, you need to configure an IP address for the loopback interface and configure the MPLS LSR ID as the IP address of the loopback interface, and you can also configure BFD session parameters for the loopback interface as needed.

Examples

# Enable BFD to check the connectivity of the LSPs to destination 1.1.1.9/32.

<Sysname> system-view

[Sysname] mpls lspv

[Sysname-mpls-lspv] bfd enable 1.1.1.9 32

display mpls ilm

Syntax

display mpls ilm [ label ] [ verbose ] [ slot slot-number ] [ include text | { | { begin | exclude | include } regular-expression } ]

View

Any view

Default level

1: Monitor level

Parameters

label: Displays the incoming label mapping (ILM) entry with the specified incoming label, in the range of 16 to 1048575.

verbose: Displays the detailed information.

slot slot-number: Displays the ILM entries on a card. slot-number indicates the number of the slot that holds the card.

include text: Display the ILM entries that contain a specific string.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ilm command to display information about the ILM entries.

With no incoming label specified, the command displays information about all ILM entries.

Examples

# Display the ILM entry with a specific incoming label.

<Sysname> display mpls ilm 60

Inlabel In-Interface Token VRF-Index Oper LSP-Type Swap-Label

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

60 GE4/1/1 1 0 NULL STATIC LSP -

# Display all ILM entries.

<Sysname> display mpls ilm

Total ILM Entry: 2

Inlabel In-Interface Token VRF-Index Oper LSP-Type Swap-Label

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

60 GE4/1/1 1 0 NULL STATIC LSP -

80 GE4/1/2 2 0 NULL STATIC LSP -

Table 1 Output description

Field	Description
Inlabel	Incoming label
In-Interface	Incoming interface
Token	NHLFE entry index
VRF-Index	VRF index
Oper	Operation type, which can be POP, POPGO, SWAPGO, or NULL
LSP-Type	LSP type, which can be LDP LSP, CR-LDP, RSVP LSP, BGP LSP, L3VPN LSP, STATIC LSP, STATIC CR-LSP, L2VPN LSP, or BGP IPv6 LSP
Swap-Label	Label for swapping

# Display the detailed information of all ILM entries.

<Sysname> display mpls ilm verbose

Total ILM Entry: 2

**In Label : 60

LSP Type : STATIC LSP

In Interface : GE4/1/1

VRF Index : 0

Operation : NULL

Swap Label : -

Out Interface : -

Create Time : 07:55:06:921

Last Change Time : 07:55:06:921

Tunnel ID : 0xc0001(Done)

GrCount: 0

**In Label : 80

LSP Type : STATIC LSP

In Interface : GE4/1/2

VRF Index : 0

Operation : NULL

Swap Label : -

Out Interface : -

Create Time : 07:57:26:927

Last Change Time : 07:57:26:927

Tunnel ID : 0xc0002(Done)

GrCount: 0

Service : Statistics(Succeeded)

Table 2 Output description

Field	Description
In Label	Incoming label
LSP Type	LSP type, which can be LDP LSP, CR-LDP, RSVP LSP, BGP LSP, L3VPN LSP, STATIC LSP, STATIC CR-LSP, L2VPN LSP, or BGP IPv6 LSP
In Interface	Incoming interface
Operation	Operation type, which can be POP, POPGO, SWAPGO, or NULL
Swap Label	Label for swapping
Out Interface	Outgoing interface
Create Time	Time when the entry was created
Last Change Time	Time of the last update of the entry
Tunnel ID	Public tunnel ID and entry status (Done or Waiting) GrCount: Number of times that GR occurs
Service	Service type and status, where the service type is Statistics and the service status can be Succeeded (service has been enabled successfully) or Failed (service failed to be enabled).

display mpls interface

Syntax

display mpls interface [ interface-type interface-number ] [ verbose ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

interface-type interface-number: Specifies an interface by its type and number.

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

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls interface command to display information about a specific or all interfaces with MPLS enabled.

Related commands: display mpls statistics interface and mpls.

Examples

# Display brief MPLS related information about all interfaces with MPLS enabled.

<Sysname> display mpls interface

Interface Status TE Attr LSP Count CRLSP Count

GE4/1/1 Up Dis 2 0

GE4/1/2 Up Dis 2 0

# Display detailed information about MPLS-enabled interface GigabitEthernet 4/1/1.

<Sysname> display mpls interface GigabitEthernet 4/1/1 verbose

No : 1

Interface : GE4/1/1

Status : Up

TE Attribute : Disable

LSPCount : 2

CR-LSPCount : 0

FRR : Disabled

Table 3 Output description

Field	Description
No	Sequence number
Interface	Name of the interface
Status	Status of the interface
TE Attr/TE Attribute	Whether TE is enabled on the interface
LSP Count/LSPCount	Number of LSPs on the interface
CRLSP Count/CR-LSPCount	Number of CR-LSPs on the interface
FRR	Whether FRR is enabled on the interface. If FRR is enabled, the output will also include the bound tunnels.

NOTE:

For more information about FRR, see MPLS Configuration Guide.

display mpls label

Syntax

display mpls label { label-value1 [ to label-value2 ] | all } [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

all: Specifies all labels.

label-value1: Specifies a label or, when used with the label-value2 argument, the start label of a range of labels. label-value1 ranges from 16 to 262143.

to label-value2: End label of a range of labels. label-value2 ranges from 16 to 262143.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls label command to display usage information about specified labels or all labels.

Examples

# Display the usage information about labels in the range of 900 to 1500.

<Sysname> display mpls label 900 to 1500

Label alloc state: '.' means not used, '$' means used

------------------------------Static Label--------------------------------

900:........ ........ ........ ........ ........ ........ ........ ........

964:........ ........ ........ ........ ........ ........ ........ ....

------------------------------Dynamic Label-------------------------------

1024:...$.... ........ ........ ........ ........ ........ ........ ........

1088:........ ........ ........ ........ ........ ........ ........ ........

1152:........ ........ ........ ........ ........ ........ ........ ........

1216:........ ........ ........ ........ ........ ........ ........ ........

1280:........ ........ ........ ........ ........ ........ ........ ........

1344:........ ........ ........ ........ ........ ........ ........ ........

1408:........ ........ ........ ........ ........ ........ ........ ........

1472:........ ........ ........ .....

Table 4 Output description

Field	Description
Label alloc state	Label allocation status.
'.' means not used	'.' means that the label is not used.
'$' means used	'$' means that the label is used.

display mpls ldp

Syntax

display mpls ldp [ all [ verbose ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

all: Displays all LDP information.

verbose: Displays detailed information.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp command to display information about LDP.

If you do not specify any parameter, the command displays all information about LDP in detail.

Related commands: mpls ldp (interface view) and mpls ldp (system view).

Examples

# Display all LDP information in detail.

<Sysname> display mpls ldp all verbose

LDP Global Information

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

Protocol Version : V1 Neighbor Liveness : 60 Sec

Graceful Restart : Off FT Reconnect Timer : 60 Sec

MTU Signaling : Off Recovery Timer : 60 Sec

Nonstop Routing : Off

LDP Instance Information

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

Instance ID : 0 VPN-Instance :

Instance Status : Active LSR ID : 1.1.1.1

Hop Count Limit : 32 Path Vector Limit : 32

Loop Detection : Off

DU Re-advertise Timer : 30 Sec DU Re-advertise Flag : On

DU Explicit Request : Off Request Retry Flag : On

Label Distribution Mode: Ordered Label Retention Mode : Liberal

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

Table 5 Output description

Field	Description
LDP Global Information	Global LDP information
Protocol Version	Version of the LDP protocol
Graceful Restart	Whether GR is enabled
FT Reconnect Timer	FT reconnect timer of GR
MTU Signaling	Whether MTU signaling is supported. Currently, the router does not support MTU signaling.
Recovery Timer	Setting of the GR’s recovery timer
Nonstop Routing	State of LDP NSR, which can be: · On—LDP NSR is enabled but the data backup is not finished yet. · Off—LDP NSR is disabled. · Ready—LDP NSR is enabled and data backup is finished.
LDP Instance Information	Information about LDP instances
Instance ID	Sequence number of the LDP instance
VPN-Instance	Name of the LDP-enabled VPN instance. For the default VPN, nothing is displayed.
Instance Status	Status of the LDP instance
LSR ID	ID of the LSR
Hop Count Limit	Maximum hop count for loop detection
Path Vector Limit	Maximum path vector length
Loop Detection	Whether loop detection is enabled
DU Re-advertise Timer	Label re-advertisement interval for DU mode
DU Re-advertise Flag	Whether label re-advertisement is enabled for DU mode
DU Explicit Request	Whether explicit request transmission is enabled for DU mode
Request Retry Flag	Whether request retransmission is enabled
Label Distribution Mode	Label distribution control mode of the instance, which can be: · Ordered · Independent
Label Retention Mode	Label retention mode used by the instance, which can be only Liberal at present.

display mpls ldp cr-lsp

Syntax

display mpls ldp cr-lsp [ lspid lsr-id lsp-id ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

lspid lsr-id lsp-id: Displays information about the specified CR-LSP. lsr-id is the LSR ID of the ingress, in the form of IP address. lsp-id is the local LSP ID of the ingress, in the range of 0 to 65535.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp cr-lsp command to display information about CR-LSPs established by CR-LDP.

Related commands: display mpls lsp.

Examples

# Display information about CR-LSPs established by LDP.

<Sysname> display mpls ldp cr-lsp

Displaying All LDP CR-LSP(s) for public network

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

CR-LSP ID DestAddress/Mask In/OutLabel In/Out-Interface

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

1.1.1.9:0 2.2.2.9/32 NULL/1027 -------/GE4/1/1

2.2.2.9:0 1.1.1.9/32 1027/NULL GE4/1/1/-------

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

The Total LDP CR-LSP(s): 2

Table 6 Output description

Field	Description
CR-LSP ID	ID of the CR-LSP
DestAddress/Mask	Destination address and the mask of the FEC
In/OutLabel	Incoming label/outgoing label
In/Out-Interface	Incoming interface/outgoing interface

display mpls ldp fec

Syntax

display mpls ldp fec [ vpn-instance vpn-instance-name ] dest-addr mask-length [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

vpn-instance vpn-instance-name: Displays the label advertisement information of the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

dest-addr mask-length: Displays the label advertisement information of the specified FEC. dest-addr specifies a FEC by a destination address. mask-length specifies the mask length of the FEC destination address, in the range of 0 to 32.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp fec command to display the label advertisement information of a specific FEC.

Examples

# Display the label advertisement information of FEC 3.3.3.9/32.

<Sysname> display mpls ldp fec 3.3.3.9 32

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

LDP FEC Information

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

Label Advertisement Policy:

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

FEC IP-prefix : prefix-from-rt1

Peer IP-prefix : peer-to-rt2

Upstream Info:

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

No. : 1

Upstream peer : 3.3.3.9

Stale : No

Label Request ID : NULL

Label Space ID : 0

FEC Type : Generic

Incoming Label : 1066

State : Release_Awaited (Aging)

Hop Count : 1

Path Vector Count : 0

Path Vector : NULL

Downstream Info:

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

No. : 1

Downstream Peer : 2.2.2.9

Stale : No

Label Request ID : NULL

Label Type : Generic

Outgoing Label : 1036

State : Established

Hop Count : 2

Path Vector Count : 1

Path Vector : 2.2.2.9

Received MTU : 1500

OutIfCount : 2

OutGoing Info : Interface Nexthop

Vlan200 21.21.21.2

Vlan100 12.12.12.2

Table 7 Output description

Field	Description
Label Advertisement Policy	Information about the label advertisement control policy
FEC IP-prefix	IP prefix list for checking FEC destination addresses
Peer IP-prefix	IP prefix list for checking LSR IDs of LDP peers
Stale	Whether the router is in GR process
Label Space ID	0 indicates that the entire LSR uses one label space.
Label Type	Label type, including Generic, ATM, and FR. Currently, the router supports Generic only.
State	Current state, which can be: · Established—Active state · IDLE—Inactive state · Release_Awaited—Waiting to a Release message · Established (Sending Mapping)—Sending the mapping message. · Established (Delay to withdraw)—Delay to withdraw the incoming label. · IDLE (Sending Release)—Sending the release message. · Release_Awaited (Sending Withdraw)—Sending the withdraw message. · Release_Awaited (Aging)—Aging the label.
Path Vector Count	Number of LSRs included in the path vector
OutIfCount	Number of outbound interfaces
Interface	Outbound interface

display mpls ldp interface

Syntax

display mpls ldp interface [ all [ verbose ] | [ vpn-instance vpn-instance-name ] [ interface-type interface-number | verbose ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

all: Displays all information.

verbose: Displays detailed information.

vpn-instance vpn-instance-name: Displays the LDP related information of the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

interface-type interface-number: Display the LDP information of an interface.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp interface command to display the LDP related information of one or more LDP-enabled interfaces.

If you do not specify any parameter, the command will display the brief LDP information of all LDP-enabled interfaces.

Related commands: mpls ldp (interface view) and mpls ldp (system view).

Examples

# Display the brief LDP information of all LDP-enabled interfaces.

<Sysname> display mpls ldp interface

LDP Interface Information in Public Network

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

IF-Name Status LAM Transport-Address Hello-Sent/Rcv

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

GE4/1/1 Active DU 172.17.1.1 583/1017

GE4/1/1 Active DU 172.17.1.1 578/1015

GE4/1/1 Active DU 172.17.1.1 534/1444

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

LAM: Label Advertisement Mode IF-Name: Interface name

# Display the detailed LDP information of all LDP-enabled interfaces.

<Sysname> display mpls ldp interface verbose

LDP Interface Information in Public Network

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

Interface Name : GigabitEthernet4/1/1

LDP ID : 172.17.1.1:0 Transport Address : 172.17.1.1

Entity Status : Active Interface MTU : 1500

Configured Hello Timer : 15 Sec

Negotiated Hello Timer : 15 Sec

Configured Keepalive Timer : 45 Sec

Label Advertisement Mode : Downstream Unsolicited

Hello Message Sent/Rcvd : 594/1/1033 (Message Count)

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

Interface Name : GigabitEthernet4/1/2

LDP ID : 172.17.1.1:0 Transport Address : 172.17.1.1

Entity Status : Active Interface MTU : 1500

Configured Hello Timer : 15 Sec

Negotiated Hello Timer : 15 Sec

Configured Keepalive Timer : 45 Sec

Label Advertisement Mode : Downstream Unsolicited

Hello Message Sent/Rcvd : 586/1031 (Message Count)

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

Interface Name : GigabitEthernet4/2/1

LDP ID : 172.17.1.1:0 Transport Address : 172.17.1.1

Entity Status : Active Interface MTU : 1500

Configured Hello Timer : 15 Sec

Negotiated Hello Timer : 15 Sec

Configured Keepalive Timer : 45 Sec

Label Advertisement Mode : Downstream Unsolicited

Hello Message Sent/Rcvd : 539/452 (Message Count)

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

Table 8 Output description

Field	Description
Interface Name	Name of an LDP-enabled interface
LDP ID	LDP identifier. It identifies the label space of an LSR. An LDP ID consists of the LSR ID and label space ID. The label space ID can only be 0, which indicates that the entire LSR uses one label space.
Transport Address	LDP transport address. The device uses this address to establish a TCP connection with an LDP peer.
Entity Status	Status of the entity, Active or Inactive
Label Advertisement Mode	The router only supports the DU mode.
Hello Message Sent/Rcvd	Counts of Hello messages sent/received on the interface

display mpls ldp lsp

Syntax

display mpls ldp lsp [ all | [ vpn-instance vpn-instance-name ] [ destination-address mask-length ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

all: Displays information about all LSPs established by LDP.

vpn-instance vpn-instance-name: Displays the LSP information of the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

dest-addr mask-length: Displays the LSP information of a FEC. dest-addr specifies the FEC destination address. mask-length specifies the maks length of the destination address, in the range of 0 to 32.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp lsp command to display information about LSPs established by LDP.

If you do not specify any parameter, the command displays information about all LSPs established by LDP.

Related commands: display mpls lsp.

Examples

# Display information about all LSPs established by LDP.

<Sysname> display mpls ldp lsp

LDP LSP Information

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

SN DestAddress/Mask In/OutLabel Next-Hop In/Out-Interface

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

1 1.1.1.4/32 3/NULL 127.0.0.1 -------/InL0

2 10.1.1.0/24 3/NULL 10.1.1.1 -------/GE4/1/1

*3 100.1.1.4/32 Liberal(1025)

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

A '*' before an LSP means the LSP is not established

A '*' before a Label means the USCB or DSCB is stale

Table 9 Output description

Field	Description
SN	Sequence number of the LSP. A “*” before an SN means that the LSP is not established.
DestAddress/Mask	Destination address and the mask of the LSP
In/OutLabel	Incoming label/outgoing label. A * before a label means that the LSP is in process of GR. Liberal(number) means that the LSP is unavailable and the label value is number.
Next-Hop	Address of the next hop
In/Out-Interface	Incoming interface/outgoing interface

display mpls ldp peer

Syntax

display mpls ldp peer [ all [ verbose ] | [ vpn-instance vpn-instance-name ] [ peer-id | verbose ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

all: Display information about all peers.

verbose: Displays detailed information.

vpn-instance vpn-instance-name: Displays information about all peers on the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

peer-id: Displays information about a peer. peer-id is the LSR ID of the peer.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp peer command to display information about specified or all peers of the current LSR.

Related commands: mpls ldp (interface view) and mpls ldp (system view).

Examples

# Display brief information about all peers.

<Sysname> display mpls ldp peer

LDP Peer Information in Public network

Total number of peers: 3

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

Peer-ID Transport-Address Discovery-Source

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

172.17.1.2:0 172.17.1.2 GigabitEthernet4/1/1

168.1.1.1:0 168.1.1.1 GigabitEthernet4/1/2

100.10.1.1:0 100.10.1.1 GigabitEthernet4/2/1

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

Table 10 Output description

Field	Description
Peer-ID	LDP identifier of the peer. For more information about the LDP identifier, see the LDP ID field in Table 8.
Transport-Address	LDP Transport address of the peer
Discovery-Source	Interface that discovers the peer

# Display detailed information about all peers.

<Sysname> display mpls ldp peer verbose

LDP Peer Information in Public network

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

Peer LDP ID : 172.17.1.2:0

Peer Max PDU Length : 4096 Peer Transport Address : 172.17.1.2

Peer Loop Detection : Off Peer Path Vector Limit : 0

Peer FT Flag : Off Peer Keepalive Timer : 45 Sec

Recovery Timer : ---- Reconnect Timer : ----

Peer Label Advertisement Mode : Downstream Unsolicited

Peer Discovery Source : GigabitEthernet4/1/1

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

Peer LDP ID : 168.1.1.1:0

Peer Max PDU Length : 4096 Peer Transport Address : 168.1.1.1

Peer Loop Detection : Off Peer Path Vector Limit : 0

Peer FT Flag : Off Peer Keepalive Timer : 45 Sec

Recovery Timer : ---- Reconnect Timer : ----

Peer Label Advertisement Mode : Downstream Unsolicited

Peer Discovery Source : GigabitEthernet4/2/1

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

Peer LDP ID : 100.10.1.1:0

Peer Max PDU Length : 4096 Peer Transport Address : 100.10.1.1

Peer Loop Detection : Off Peer Path Vector Limit : 0

Peer FT Flag : Off Peer Keepalive Timer : 45 Sec

Recovery Timer : ---- Reconnect Timer : ----

Peer Label Advertisement Mode : Downstream Unsolicited

Peer Discovery Source : GigabitEthernet4/2/2

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

Table 11 Output description

Field	Description
Peer LDP ID	LDP identifier of the peer. For more information about the LDP identifier, see the LDP ID field in Table 8.
Peer FT Flag	Whether GR FT is enabled on the peer
Peer Discovery Source	Interface that discovers the peer

display mpls ldp remote-peer

Syntax

display mpls ldp remote-peer [ remote-name remote-peer-name ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

remote-name remote-peer-name: Displays information about a remote peer. remote-peer-name indicates the name of the remote peer, a case-insensitive string of 1 to 32 characters.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp remote-peer command to display information about LDP remote peers.

Related commands: mpls ldp and remote-ip.

Examples

# Display information about remote peer BJI.

<Sysname> display mpls ldp remote-peer remote-name BJI

LDP Remote Entity Information

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

Remote Peer Name : BJI

Remote Peer IP : 3.3.3.3 LDP ID : 1.1.1.1:0

Transport Address : 1.1.1.1

Configured Keepalive Timer : 45 Sec

Configured Hello Timer : 45 Sec

Negotiated Hello Timer : 45 Sec

Hello Message Sent/Rcvd : 3/2 (Message Count)

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

Table 12 Output description

Field	Description
LDP Remote Entity Information	Information about the remote LDP peer
LDP ID	Local LDP identifier. For more information about the LDP identifier, see the LDP ID field in Table 8.
Transport Address	Local LDP transport address used to establish a TCP connection with this remote peer
Hello Message Sent/Rcvd	Counts of hello messages sent to/received from this remote peer

display mpls ldp session

Syntax

display mpls ldp session [ all [ verbose ] | [ vpn-instance vpn-instance-name ] [ peer-id | verbose ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

all: Displays all information.

verbose: Displays detailed information.

vpn-instance vpn-instance-name: Displays information about all LDP sessions of the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

peer-id: Displays the LDP session information of a peer. peer-id indicates the LSR ID of the peer.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp session command to display information about LDP all sessions.

If you do not specify any parameter, the command displays information about all public network LDP sessions.

Related commands: mpls ldp.

Examples

# Display information about all public network LDP sessions.

<Sysname> display mpls ldp session

LDP Session(s) in Public Network

Total number of sessions: 1

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

Peer-ID Status LAM SsnRole FT MD5 KA-Sent/Rcv

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

1.1.1.1:0 Operational DU Active Off Off 4582/4582

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

LAM : Label Advertisement Mode FT : Fault Tolerance

Table 13 Output description

Field	Description
Peer-ID	LDP identifier of the peer. For more information about the LDP identifier, see the LDP ID field in Table 8.
Status	Session status, including: · Non Existent—The TCP connection is not established yet. · Initialized—The TCP connection is established. · Open-Received—Received an acceptable initialization message. · Open-Sent—Sent an initialization message. · Operational—The LDP session is established.
SsnRole	Role of the current LSR in the session, Active or Passive
KA-Sent/Rcv	Counts of keepalive messages sent by/received on the local LSR

# Display detailed information about all public network LDP sessions.

<Sysname> display mpls ldp session verbose

LDP Session(s) in Public Network

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

Peer LDP ID : 1.1.1.1:0 Local LDP ID : 3.3.3.3:0

TCP Connection : 3.3.3.3 -> 1.1.1.1

Session State : Operational Session Role : Active

Session FT Flag : Off MD5 Flag : Off

Reconnect Timer : --- Recovery Timer : ---

Negotiated Keepalive Timer : 45 Sec

Keepalive Message Sent/Rcvd : 6/6 (Message Count)

Label Advertisement Mode : Downstream Unsolicited

Label Resource Status(Peer/Local) : Available/Available

Peer Discovery Mechanism : Extended

Session existed time : 000:00:01 (DDD:HH:MM)

LDP Extended Discovery Source : Remote peer: 1

Addresses received from peer: (Count: 2)

10.1.1.1 1.1.1.1

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

Peer LDP ID : 2.2.2.2:0 Local LDP ID : 3.3.3.3:0

TCP Connection : 3.3.3.3 -> 2.2.2.2

Session State : Operational Session Role : Active

Session FT Flag : Off MD5 Flag : Off

Reconnect Timer : --- Recovery Timer : ---

Negotiated Keepalive Timer : 45 Sec

Keepalive Message Sent/Rcvd : 25/25 (Message Count)

Label Advertisement Mode : Downstream Unsolicited

Label Resource Status(Peer/Local) : Available/Available

Peer Discovery Mechanism : Basic

Session existed time : 000:00:06 (DDD:HH:MM)

LDP Basic Discovery Source : GigabitEthernet4/1/1

Label Acceptance Policy : prefix-from-rt1

Addresses received from peer: (Count: 3)

10.1.1.2 20.1.1.1 2.2.2.2

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

Table 14 Output description

Field	Description
Peer LDP ID	LDP identifier of the peer. For more information about the LDP identifier, see the LDP ID field in Table 8.
Local LDP ID	Local LDP identifier. For more information about the LDP identifier, see the LDP ID field in Table 8.
Session State	Status of the session. For more information about session states, see Table 13.
Session Role	Role of the current LSR in the session, Active or Passive
Session FT Flag	Whether GR FT is enabled on the peer for the session
MD5 Flag	Whether MD5 authentication is enabled on the peer
Reconnect Timer	FT reconnect timer
Recovery Timer	LDP recovery timer
Label Resource Status(Peer/Local)	Whether the local and peer devices have free labels
Peer Discovery Mechanism	Discovery mechanism of the peer: Basic or Extended
Session existed time	Length of time that elapsed since the session is established
LDP Basic Discovery Source	Interface where the session is established. The value is the name of the interface for basic discovery and name of the remote peer for extended discovery.
LDP Extended Discovery Source
Label Acceptance Policy	Label acceptance control policy

display mpls ldp session all statistics

Syntax

display mpls ldp session all statistics [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls ldp session all statistics command to display statistics about all LDP sessions.

Examples

# Display statistics about all LDP sessions.

<Sysname> display mpls ldp session all statistics

Total number of sessions : 1024

Session(s) in Non-Existent state : 100

Session(s) in Initialized state : 200

Session(s) in Open-Received state : 400

Session(s) in Open-Sent state : 300

Session(s) in Operational state : 24

display mpls lsp

Syntax

display mpls lsp [ incoming-interface interface-type interface-number ] [ outgoing-interface interface-type interface-number ] [ in-label in-label-value ] [ out-label out-label-value ] [ asbr | [ vpn-instance vpn-instance-name ] [ protocol { bgp | bgp-ipv6 | crldp | ldp | rsvp-te | static | static-cr } ] ] [ egress | ingress | transit ] [ { exclude | include } { ipv4-dest-addr mask-length | ipv6-dest-addr prefix-length } ] [ verbose ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

incoming-interface interface-type interface-number: Displays information about the LSPs using the specified interface as the incoming interface.

outgoing-interface interface-type interface-number: Displays information about the LSPs using the specified interface as the outgoing interface.

in-label in-label-value: Displays information about the LSPs using the specified label as the incoming label. The value of the incoming label ranges 0 to 1048575.

out-label out-label-value: Displays information about the LSPs using the specified label as the outgoing label. The value of the outgoing label ranges 0 to 1048575.

asbr: Displays information about the LSPs established by ASBRs.

vpn-instance vpn-instance-name: Displays information about the LSPs on the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

protocol: Displays information about the LSPs established by a specific protocol.

bgp: Displays information about BGP LSPs.

bgp-ipv6: Displays information about IPv6 BGP LSPs, or, BGP4+ LSPs.

crldp: Displays information about CR-LSPs established by CR-LDP.

ldp: Displays information about LDP LSPs.

rsvp-te: Displays information about CR-LSPs established by RSVP-TE.

static: Displays information about static LSPs.

static-cr: Displays information about static CR-LSPs.

egress: Displays information about the LSPs taking the current LSR as the egress.

ingress: Displays information about the LSPs taking the current LSR as the ingress.

transit: Displays information about the LSPs taking the current LSR as a transit LSR.

exclude: Displays information about the LSPs other than the one for the specified FEC.

include: Displays information about the LSP for the specified FEC.

ipv4-dest-addr mask-length: Specifies a FEC by an IPv4 destination address and the address mask length. The mask length is in the range of 0 to 32.

Ipv6-dest-addr mask-length: Specifies a FEC by an IPv6 destination address and the address mask length. The mask length is in the range of 0 to 128.

verbose: Displays detailed information.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

· begin: Displays the first line that matches the specified regular expression and all lines that follow.

· exclude: Displays all lines that do not match the specified regular expression.

· include: Displays all lines that match the specified regular expression.

· regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls lsp command to display information about LSPs.

With no parameters specified, the command displays information about all LSPs.

Related commands: display mpls lsp, display mpls static-lsp, and display mpls statistics lsp.

NOTE:

This command supports these interface types: Layer 3 Ethernet interface (GE interface, and XGE interface), ATM interface, POS interface, Layer 3 aggregate interface, Mp-group interface, MFR interface, tunnel interface, VLAN interface, and RPR logical interface.

Examples

# Display information about all LSPs.

<Sysname> display mpls lsp

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

LSP Information: L3VPN LSP

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

FEC In/Out Label In/Out IF Route-Distinguisher Vrf Name

100.1.1.1 1025/1024 -/- 100:1 N/A (ASBR)

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

LSP Information: LDP LSP

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

FEC In/Out Label In/Out IF Vrf Name

100.10.1.0/24 3/NULL -/-

168.1.0.0/16 3/NULL -/-

172.17.0.0/16 3/NULL -/-

Table 15 Output description

Field	Description
FEC	Forwarding equivalence class, in either of the following forms: · IP address/mask—Assigning labels based on destination addresses. · IP address—Assigning labels based on the addresses of the next hops.
Vrf Name	VPN instance name: · Empty—Indicates the public network · N/A (ASBR)—Indicates an ASBR LSP · Any other value—Indicates the name of an MPLS L3VPN

Field

Description

FEC

Forwarding equivalence class, in either of the following forms:

· IP address/mask—Assigning labels based on destination addresses.

· IP address—Assigning labels based on the addresses of the next hops.

Vrf Name

VPN instance name:

· Empty—Indicates the public network

· N/A (ASBR)—Indicates an ASBR LSP

· Any other value—Indicates the name of an MPLS L3VPN

# Display detailed information about all LSPs.

<Sysname> display mpls lsp verbose

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

LSP Information: BGP LSP

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

No. : 4

VrfName : vpn1

Fec : 56.10.10.2

Nexthop : -------

In-Label : 1024

Out-Label : NULL

In-Interface : ----------

Out-Interface : ----------

LspIndex : 5121

Tunnel ID : 0x0

LsrType : Egress

Outgoing Tunnel ID : 0x0

Label Operation : POP

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

LSP Information: LDP LSP

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

No. : 1

VrfName :

Fec : 1.1.1.9/32

Nexthop : 127.0.0.1

In-Label : 3

Out-Label : NULL

In-Interface : ----------

Out-Interface : ----------

LspIndex : 10241

Tunnel ID : 0x0

LsrType : Egress

Outgoing Tunnel ID : 0x0

Label Operation : POP

Table 16 Output description

Field	Description
VrfName	VPN instance name: · Empty—Indicates the public network · N/A (ASBR)—Indicates an ASBR LSP · Any other value—Indicates the name of an MPLS L3VPN
Fec	Forwarding equivalence class, in either of the following forms: · IP address/mask—Assigns labels based on destination addresses. · IP address—Assigns labels based on the addresses of the next hops.
Tunnel ID	Tunnel ID (the pubic network)
LsrType	Role of the LSR for the LSP, which can be Ingress, Transit, or Egress
Outgoing Tunnel ID	Tunnel ID (inter-AS VPN)
Label Operation	Label operation performed, which can be POP, PUSH, or SWAP.

display mpls lsp bfd ipv4

Syntax

display mpls lsp bfd [ ipv4 destination-address mask-length ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

destination-address mask-length: Displays the BFD information of the LSPs for a FEC. destination-address is the FEC destination IP address. mask-length is the mask length of the destination address, in the range of 0 to 32.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls lsp bfd ipv4 command to display the BFD information for LSPs.

Examples

# Display the BFD check information of the LSPs for destination 1.1.1.9/32.

<Sysname> display mpls lsp bfd ipv4 1.1.1.9 32

MPLS BFD Session(s) Information

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

FEC : 1.1.1.9/32 Type : LSP

Local Discr : 1 Remote Discr : 1

Tunnel ID : 0xd2007 NextHop : 11.1.1.2

Session State : Up Source IP : 1.1.1.1

Session Role : Active

FEC : 1.1.1.9/32 Type : LSP

Local Discr : 2 Remote Discr : 2

Tunnel ID : 0xd2008 NextHop : 12.1.1.2

Session State : Up Source IP : 1.1.1.1

Session Role : Active

Total Session Num: 2

Table 17 Output description

Field	Description
Type	Type of the tunnel detected by BFD, which can be LSP or TE Tunnel
Local Discr	Local discriminator value of the BFD session
Remote Discr	Remote discriminator value of the BFD session
Session State	BFD session state, including: · Init—The BFD session is in the initialization state. · Up—The BFD session is up. · Down—The BFD session is down.
Source IP	IP address of the active end (ingress LSR) of the BFD session
Session Role	Role of the current LSR in the session, Active or Passive · Active—Initiator of the BFD session · Passive—Responder of the BFD session

display mpls lsp statistics

Syntax

display mpls lsp statistics [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls lsp statistics command to display LSP statistics.

Examples

# Display LSP statistics.

<Sysname> display mpls lsp statistics

Lsp Type Total Ingress Transit Egress

STATIC LSP 0 0 0 0

STATIC CRLSP 0 0 0 0

LDP LSP 8 2 2 4

CRLDP CRLSP 0 0 0 0

RSVP CRLSP 0 0 0 0

BGP LSP 0 0 0 0

ASBR LSP 0 0 0 0

BGP IPV6 LSP 0 0 0 0

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

LSP 8 2 2 4

CRLSP 0 0 0 0

Table 18 Output description

Field	Description
Ingress	Number of LSPs taking the current LSR as the ingress
Transit	Number of LSPs taking the current LSR as a transit LSR
Egress	Number of LSPs taking the current LSR as the egress

display mpls nhlfe

Syntax

display mpls nhlfe [ token ] [ verbose ] [ slot slot-number ] [ include text | { | { begin | exclude | include } regular-expression } ]

View

Any view

Default level

1: Monitor level

Parameters

token: Specifies an NHLFE entry by its index, in the range of 0 to 36863.

verbose: Displays the detailed information.

slot slot-number: Displays the NHLFE entries of the card in the specified slot.

include text: Specifies NHLFE entries that contain a specific string.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls nhlfe command to display information about the NHLFE table.

With the token argument not specified, the command displays information about all NHLFE entries.

Examples

# Display information about a specific NHLFE entry.

<Sysname> display mpls nhlfe 2

Out-Interface Token Oper Nexthop Deep Stack

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

GE4/2/1 2 PUSH 88.1.1.2 1 1024

# Display all NHLFE entries.

<Sysname> display mpls nhlfe

Total NHLFE Entry: 1

Out-Interface Token Oper Nexthop Deep Stack

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

GE4/2/1 2 PUSH 88.1.1.2 1 1024

Table 19 Output description

Field	Description
Total NHLFE Entry	Total number of NHLFE entries
Token	NHLFE entry index
Oper	Label operation type, which can be PUSH, SWAP, or GO
Deep	Depth of the MPLS label stack
Stack	MPLS label

# Display the detailed information of all NHLFE entries.

<Sysname> display mpls nhlfe verbose

Totel NHLFE Entry: 1

**Token : 1 Tunnel ID:0x7600001

VRF Index : 0

Next Hop : 1.1.1.1

Out Interface : Vlan10

AT Index : 1

Label Stack : 1024

Operation : PUSH

LSP Type : LDP LSP

Tunnel State : Done

FRR Tunnel ID : 0x0

FRR Flag : False

FRR Inner Label : -

FRR Tunnel State : Waiting

Next Tunnel ID : 0x0

Gr Count : 1

Create Time : 00:02:11:222

Last Change Time : 00:03:11:333

Service : Statistics(Succeeded)

Table 20 Output description

Field	Description
Total NHLFE Entry	Total number of NHLFE entries
Token	Index of the NHLFE entry
Tunnel ID	Index of the NHLFE tunnel
AT Index	Adjacency table index
Operation	Label operation type, which can be PUSH, SWAP, or GO
LSP Type	LSP type, which can be LDP LSP, CR-LDP/RSVP LSP, BGP LSP, L3VPN LSP, STATIC LSP, STATIC CR-LSP, L2VPN LSP, BGP IPv6 LSP, or INVALID
Tunnel State	Tunneling state, Done or Waiting
FRR Flag	Fast reroute (FRR) flag, True or False
FRR Tunnel State	FRR tunnel state, Done or Waiting
Next Tunnel ID	ID of the nested tunnel
Gr Count	Number of times that GR occurs
Create Time	Time when the entry was created
Last Change Time	Time of the last update of the entry
Service	Service type and status, where the service type is Statistics and the service status can be Succeeded (service has been enabled successfully) or Failed (service failed to be enabled).

display mpls nhlfe reflist

Syntax

display mpls nhlfe reflist token [ slot slot-number ] [ include text | { | { begin | exclude | include } regular-expression } ]

View

Any view

Default level

1: Monitor level

Parameters

token: Specifies an NHLFE entry by its index.

slot slot-number: Displays the usage information of the NHLFE entries on the specified card. slot-number is the number of the slot that holds the card.

include text: Displays the usage information of the NHLFE entries that contains a specific string. text is the specified string.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls nhlfe reflist command to display the usage information of the NHLFE entries.

Examples

# Display the usage information of the specified NHLFE entry.

<Sysname> display mpls nhlfe reflist 11

Total reference node: 8

No. Type Key-Info

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

1 ILM 1023(Inlabel) GE3/1/1(In-If)

2 FTN 1(VPN ID) 2.2.2.2/32

3 LPW ----(SRV ID) GE3/1/2(Private-If)

4 VPW 1(VSI ID) 1(Link ID)

5 FRR 11(Token) ----

6 INN 11(Token) ----

7 OAM 1(Index) ----

8 BFD 1(BFD Discr) ----

Table 21 Output description

Field	Description
Total reference node	Total number of associated nodes
Type	Type of the associated node
Key-Info	Key parameters of the entry

NOTE:

An asterisk (*) before the number of a node entry means that the node is invalid and is to be deleted.

Table 22 Types of associated nodes and their key parameters

Node type	Description	Key parameter
FTN	FEC to NHLFE mapping	· VPN ID: VPN instance ID · Address prefix/mask
ILM	Incoming label mapping	· In-Label: Incoming label · In-If: Incoming interface
LPW	Sending entries of VPWS PW	· SRV ID: Service instance ID · Private-If: Private network interface
VPW	Sending entries of VPLS PW	· VSI ID: Virtual switching instance ID · Link ID: Link ID
FRR	Primary NHLFE of FRR	Token: Token of the primary NHLFE
INN	Inner-layer NHLFE of layered LSP	Token: Token of the inner NHLFE
OAM	Check through OAM the connectivity of the CR-LSP corresponding to the NHLFE	Index: OAM instance index
BFD	Check the connectivity of the NHLFE through BFD	BFD Discr: Local discriminator value of the BFD session

display mpls route-state

Syntax

display mpls route-state [ vpn-instance vpn-instance-name ] [ dest-addr mask-length ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

vpn-instance vpn-instance-name: Displays the LSP information of the routes on the specified VPN. vpn-instance-name is the instance name of an MPLS L3VPN, a case-sensitive string of 1 to 31 characters.

dest-addr mask-length: Displays the LSP information of routes to a destination address. dest-addr is the destination IP address. The mask length is in the range of 0 to 32.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls route-state command to display LSP information of routes.

With no VPN instance specified, the command displays the LSP information of the public routes. With no destination address and mask specified, the command displays the LSP information of all routes.

Examples

# Display LSP-related information about all routes.

<Sysname> display mpls route-state

DEST/MASK NEXT-HOP OUT-INTERFACE STATE LSP-COUNT VPN-INDEX

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

1.1.1.0/24 0.0.0.0 Dia1 READY 1 0

1.1.1.9/32 20.1.1.1 GE3/0/1 READY 1 0

Table 23 Output description

Field	Description
DEST/MASK	Destination address and mask of the route
LSP-COUNT	Number of LSPs established based on this route
VPN-INDEX	Index number of the VPN instance

display mpls static-lsp

Syntax

display mpls static-lsp [ lsp-name lsp-name ] [ { exclude | include } dest-addr mask-length ] [ verbose ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

lsp-name lsp-name: Displays information about the specified LSP. The LSP name is a string of 1 to 15 characters.

exclude: Displays information about the LSPs other than the one for the specified FEC.

include: Displays information about the LSP for the specified FEC.

dest-addr mask-length: Specifies a FEC by a destination address and the mask length of the destination address. The mask-length argument ranges from 0 to 32.

verbose: Displays detailed information.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls static-lsp command to display information about static LSPs.

Related commands: display mpls lsp and display mpls statistics lsp.

Examples

# Display brief information about static LSPs.

<Sysname> display mpls static-lsp

total statics-lsp : 1

Name FEC I/O Label I/O If State

lsp1 3.3.3.9/32 NULL/100 -/GE4/1/1 Up

Table 24 Output description

Field	Description
I/O Label	Incoming/outgoing label
I/O If	Incoming/outgoing interface
State	Status of the LSP

# Display detailed information about static LSPs.

<Sysname> display mpls static-lsp verbose

No : 1

LSP-Name : lsp1

LSR-Type : Ingress

FEC : 3.3.3.9/32

In-Label : NULL

Out-Label : 100

In-Interface : -

Out-Interface : GigabitEthernet4/1/1

NextHop : 30.1.1.2

Static-Lsp Type: IPTN

Lsp Status : Up

Table 25 Output description

Field	Description
No	Sequence number
LSR-Type	Role of the LSR for the LSP, which can be Ingress, Egress, or Transit
Static-Lsp Type	Type of the static LSP

display mpls statistics interface

Syntax

display mpls statistics interface { interface-type interface-number | all } [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

interface-type interface-number: Displays MPLS statistics for the specified interface.

all: Displays MPLS statistics for all interfaces.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls statistics interface command to display MPLS statistics for a specific or all interfaces.

To display statistics, set a statistics interval first. By default, the interval is 0 and the system does not read MPLS statistics, in which case the value of every statistical item is 0.

Related commands: statistics interval.

Examples

# Display MPLS statistics for all interfaces.

<Sysname> display mpls statistics interface all

Statistics for Interface IN :

Incoming Interface GigabitEthernet4/1/1

Octets : 0

Packets : 0

Errors : 0

Disables : 0

Failed Label Lookup : 0

Start Time : 2007/04/28 10:23:55

End Time : 2007/04/28 10:23:55

Statistics for Interface OUT :

Outgoing Interface GigabitEthernet4/1/1

Octets : 0

Packets : 0

Errors : 0

Disables : 0

Start Time : 2007/04/28 10:23:55

End Time : 2007/04/28 10:23:55

Statistics for Interface IN :

Incoming Interface GigabitEthernet4/1/2

Octets : 0

Packets : 0

Errors : 0

Disables : 0

Failed Label Lookup : 0

Start Time : 2007/04/28 10:24:04

End Time : 2007/04/28 10:24:04

Statistics for Interface OUT :

Outgoing Interface GigabitEthernet4/1/2

Octets : 0

Packets : 0

Errors : 0

Disables : 0

Start Time : 2007/04/28 10:24:04

End Time : 2007/04/28 10:24:04

Statistics for Interface IN :

Incoming Interface GigabitEthernet4/2/1

Octets : 0

Packets : 0

Errors : 0

Disables : 0

Failed Label Lookup : 0

Start Time : 2007/04/28 10:24:10

End Time : 2007/04/28 10:24:10

Statistics for Interface OUT :

Outgoing Interface GigabitEthernet4/2/1

Octets : 0

Packets : 0

Errors : 0

Disables : 0

Start Time : 2007/04/28 10:24:10

End Time : 2007/04/28 10:24:10

Table 26 Output description

Field	Description
Statistics for Interface IN	Statistics for an interface in the incoming direction
Statistics for Interface OUT	Statistics for an interface in the outgoing direction
Octets	Number of bytes processed
Packets	Number of packets processed
Errors	Number of errors
Disables	Number of packets dropped by the incoming interface/outgoing interface
Start Time	Start time of statistics
End Time	End time of statistics

display mpls statistics lsp

Syntax

display mpls statistics lsp { index | all | name lsp-name } [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

index: Specifies an LSP by the index of the LSP. The LSP index is in the range of 0 to 4294967295.

all: Specifies all LSPs.

name lsp-name: Specifies an LSP by its name, a string of 1 to 15 characters.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display mpls statistics lsp command to display MPLS statistics for a specific or all LSPs.

To display the statistics, set the statistics interval first. By default, the interval is 0 and the system does not collect LSP statistics, in which case the value of every statistical item is 0.

Related commands: statistics interval.

Examples

# Display MPLS statistics for all LSPs.

<Sysname> display mpls statistics lsp all

Statistics for Lsp IN : LSP Name /LSP Index : DynamicLsp/9217

InSegment

Octets : 0

Packets : 0

Errors : 0

Down : 0

Start Time : 2007/05/20 15:52:30

End Time : 2007/05/20 15:52:30

Statistics for Lsp OUT : LSP Name /LSP Index : DynamicLsp/9217

OutSegment

Octets : 0

Packets : 0

Errors : 0

Down : 0

Start Time : 0000/00/00 00:00:00

End Time : 0000/00/00 00:00:00

Statistics for Lsp IN : LSP Name /LSP Index : DynamicLsp/9218

InSegment

Octets : 0

Packets : 0

Errors : 0

Down : 0

Start Time : 0000/00/00 00:00:00

End Time : 0000/00/00 00:00:00

Statistics for Lsp OUT : LSP Name /LSP Index : DynamicLsp/9218

OutSegment

Octets : 0

Packets : 0

Errors : 0

Down : 0

Start Time : 2007/05/20 15:52:30

End Time : 2007/05/20 15:52:30

Table 27 Output description

Field	Description
Statistics for Lsp IN	Statistics for LSP in the incoming direction
Statistics for Lsp OUT	Statistics for LSP in the outgoing direction
InSegment	Information about the LSP in the incoming direction
OutSegment	Information about the LSP in the outgoing direction
Octets	Bytes of data processed
Packets	Number of packets processed
Errors	Number of errors
Down	Number of packets discarded
Start Time	Start time of the statistics
End Time	End time of the statistics

NOTE:

· For an ingress, no statistics is collected in the incoming direction and the start time and end time in the InSegment part of the command output are both 0.

· For an egress, no statistics is collected in the outgoing direction and the start time and end time in the OutSegment part of the command output are both 0.

du-readvertise

Syntax

du-readvertise

undo du-readvertise

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

None

Description

Use the du-readvertise command to enable label readvertisement for DU mode.

Use the undo du-readvertise command to disable the function.

By default, label readvertisement is enabled in DU mode.

Examples

# Enable DU mode label readvertisement for the public network LDP instance.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] du-readvertise

# Enable DU mode label readvertisement for the LDP instance vpn1.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] du-readvertise

du-readvertise timer

Syntax

du-readvertise timer value

undo du-readvertise timer

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

value: Label readvertisement interval in seconds, in the range of 1 to 65535.

Description

Use the du-readvertise timer command to set the interval for label readvertisement in DU mode.

Use the undo du-readvertise timer command to restore the default.

By default, the interval for label readvertisement in DU mode is 30 seconds.

Examples

# Set the DU mode label readvertisement interval to 100 seconds for the public network LDP instance.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] du-readvertise timer 100

# Set the DU mode label readvertisement interval to 100 seconds for LDP instance vpn1.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] du-readvertise timer 100

graceful-restart (MPLS LDP view)

Syntax

graceful-restart

undo graceful-restart

View

MPLS LDP view

Default level

2: System level

Parameters

None

Description

Use the graceful-restart command to enable MPLS LDP Graceful Restart (GR).

Use the undo graceful-restart command to disable MPLS LDP GR.

By default, MPLS LDP GR is disabled.

Enabling and disabling GR will cause all LDP sessions and all LSPs based on the sessions to be removed and then reestablished.

Examples

# Enable MPLS LDP GR.

<Sysname> system-view

[Sysname] mpls lsr-id 1.1.1.1

[Sysname] mpls

[Sysname-mpls] quit

[Sysname] mpls ldp

[Sysname-mpls-ldp] graceful-restart

graceful-restart mpls ldp

Syntax

graceful-restart mpls ldp

View

User view

Default level

1: Monitor level

Parameters

None

Description

Use the graceful-restart mpls ldp command to gracefully restart MPLS LDP.

This command is only used to test MPLS LDP GR function. It does not perform active/standby switchover. Do not use it in other cases.

Enable the MPLS LDP GR capability before using this command.

Related commands: graceful-restart (MPLS LDP view).

Examples

# Gracefully restart MPLS LDP.

<Sysname> graceful-restart mpls ldp

graceful-restart timer neighbor-liveness

Syntax

graceful-restart timer neighbor-liveness timer

undo graceful-restart timer neighbor-liveness

View

MPLS LDP view

Default level

2: System level

Parameters

timer: LDP neighbor liveness time, in the range of 60 to 300 seconds.

Description

Use the graceful-restart timer neighbor-liveness command to set the LDP neighbor liveness time.

Use the undo graceful-restart timer neighbor-liveness command to restore the default.

By default, the LDP neighbor liveness time is 120 seconds.

Modifying the LDP neighbor liveness time will cause all LDP sessions and all LSPs based on the sessions to be removed and then reestablished.

For LDP sessions with MD5 authentication configured, you need to increase the LDP neighbor liveness time appropriately so that the TCP connection can be reestablished.

Examples

# Set the LDP neighbor liveness time to 100 seconds.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] graceful-restart timer neighbor-liveness 100

graceful-restart timer reconnect

Syntax

graceful-restart timer reconnect timer

undo graceful-restart timer reconnect

View

MPLS LDP view

Default level

2: System level

Parameters

timer: Fault Tolerance (FT) reconnect time, in the range of 60 to 300 seconds.

Description

Use the graceful-restart timer reconnect command to set the FT reconnect time.

Use the undo graceful-restart timer reconnect command to restore the default.

By default, the FT reconnect time is 300 seconds.

refers to the maximum time that the stale state flag will be preserved by the LSR after the TCP connection fails.

Modifying the FT reconnect time will cause all LDP sessions and all LSPs based on the sessions to be removed and then reestablished.

Examples

# Set the FT reconnect time to 100 seconds.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] graceful-restart timer reconnect 100

graceful-restart timer recovery

Syntax

graceful-restart timer recovery timer

undo graceful-restart timer recovery

View

MPLS LDP view

Default level

2: System level

Parameters

timer: LDP recovery time, in the range of 3 to 300 seconds.

Description

Use the graceful-restart timer recovery command to set the LDP recovery time.

Use the undo graceful-restart timer recovery command to restore the default.

By default, the LDP recovery time is 300 seconds.

The LDP recovery time refers to the maximum time that the stale state label will be kept by the LSR after a TCP reconnection.

Modifying the LDP recovery time will cause all LDP sessions and all LSPs based on the sessions to be removed and then reestablished.

Examples

# Set the LDP recovery time to 45 seconds.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] graceful-restart timer recovery 45

hops-count

Syntax

hops-count hop-number

undo hops-count

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

hop-number: Hop count, in the range of 1 to 32.

Description

Use the hops-count command to set the maximum hop count for loop detection.

Use the undo hops-count command to restore the default.

By default, the maximum hop count for loop detection is 32.

You must configure the command before enabling LDP on any interface.

The maximum hop count dictates how fast LDP detects a loop. Adjust this argument as required.

Related commands: loop-detect and path-vectors.

Examples

# Set the maximum hop count for loop detection to 25 for the public network LDP instance.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] hops-count 25

# Set the maximum hop count for loop detection to 25 for LDP instance vpn1.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] hops-count 25

label advertise

Syntax

label advertise { explicit-null | implicit-null | non-null }

undo label advertise

View

MPLS view

Default level

2: System level

Parameters

explicit-null: Specifies the egress to distribute to the penultimate hop an explicit null label, whose value is 0.

implicit-null: Specifies the egress to distribute to the penultimate hop an implicit null label, whose value is 3.

non-null: Specifies the egress to distribute to the penultimate hop a normal label, whose value is not less than 1024.

Description

Use the label advertise command to specify what type of label the egress should distribute to the penultimate hop.

Use the undo label advertise command to restore the default.

By default, the egress distributes an implicit null label to the penultimate hop.

The type of label for an egress to distribute depends on whether the penultimate hop supports PHP. If the penultimate hop supports PHP, you can configure the egress to distribute the explicit null or implicit null label to the penultimate hop. If the penultimate hop does not support PHP, configure the egress to distribute a normal label.

If LDP sessions have been established, use the reset mpls ldp command to reset the sessions to bring the label advertise command into effect.

Examples

# Configure the egress to distribute an explicit null label to the penultimate hop.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] label advertise explicit-null

label-distribution

Syntax

label-distribution { independent | ordered }

undo label-distribution

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

independent: Specifies the independent label distribution control mode, where an LSR can advertise label bindings to its connected LSRs at anytime.

ordered: Specifies the ordered label distribution control mode, where an LSR advertises to its upstream a label binding for a FEC only when it receives a label binding for the FEC from its downstream or when it is the egress of the FEC.

Description

Use the label-distribution command to specify the label distribution control mode.

Use the undo label-distribution command to restore the default.

The default mode is ordered.

You must use the reset mpls ldp command to reset LDP sessions so that this command takes effect for those sessions.

Examples

# Set the label distribution control mode to independent for the public network LDP instance.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] label-distribution independent

# Set the label distribution control mode to independent for LDP instance vpn1.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] label-distribution independent

loop-detect

Syntax

loop-detect

undo loop-detect

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

None

Description

Use the loop-detect command to enable loop detection.

Use the undo loop-detect command to disable loop detection.

By default, loop detection is disabled.

Enable loop detection before enabling LDP on any interfaces.

Related commands: hops-count and path-vectors.

Examples

# Enable loop detection for the public network LDP instance.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] loop-detect

# Enable loop detection for LDP instance vpn1.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] loop-detect

lsp-trigger

Syntax

lsp-trigger [ vpn-instance vpn-instance-name ] { all | ip-prefix prefix-name }

undo lsp-trigger [ vpn-instance vpn-instance-name ] { all | ip-prefix prefix-name }

View

MPLS view

Default level

2: System level

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN by its instance name, a case-sensitive string of 1 to 31 characters.

all: Specifies that all routing entries can trigger establishment of LDP LSPs.

ip-prefix prefix-name: Specifies an IP prefix list to filter routing entries, so that static routes and IGP routes that are denied by the IP prefix list cannot trigger LSP establishment. prefix-name indicates the name of the IP prefix list, a string of 1 to 19 characters.

Description

Use the lsp-trigger command to configure the LSP establishment triggering policy.

Use the undo lsp-trigger command to restore the default.

By default, only host routes with 32-bit masks can trigger establishment of LDP LSPs.

An IP prefix list affects only static routes and IGP routes.

For an LSP to be established, an exactly matching routing entry must exist on the LSR. With loopback addresses using 32-bit masks, only exactly matching host routing entries can trigger LDP to establish LSPs.

If the vpn-instance vpn-instance-name option is specified, the command configures an LSP establishment triggering policy for the specified VPN; otherwise, the command configures an LSP establishment triggering policy for the public network.

For more information about IP address prefix list, see Layer 3—IP Routing Configuration Guide.

Examples

# Specify that all routing entries can trigger establishment of LDP LSPs.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] lsp-trigger all

lsr-id

Syntax

lsr-id lsr-id

undo lsr-id

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

lsr-id: LDP LSR ID.

Description

Use the lsr-id command to configure an LDP LSR ID.

Use the undo lsr-id command to remove a configured LDP LSR ID and all LDP sessions.

By default, the LDP LSR ID takes the value of the MPLS LSR ID.

Examples

# Configure the LDP LSR ID of the public network LDP instance as 2.2.2.3.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] lsr-id 2.2.2.3

# Configure the LDP LSR ID of LDP instance vpn1 as 4.2.2.3.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] lsr-id 4.2.2.3

md5-password

Syntax

md5-password { cipher | plain } peer-lsr-id password

undo md5-password peer-lsr-id

View

MPLS LDP view, MPLS LDP VPN instance view

Default level

2: System level

Parameters

cipher: Enters and displays the password in cipher text.

plain: Enters the password in plain text and displays the password in cipher text.

peer-lsr-id: Specifies the MPLS LSR ID of a peer.

password: Specifies the password. This argument is case sensitive. If plain is specified, it must be a string of 1 to 16 characters. If cipher is specified, it must be a ciphertext string of 1 to 53 characters.

Description

Use the md5-password command to enable LDP MD5 authentication and set the password.

Use the undo md5-password command to restore the default.

By default, LDP MD5 authentication is disabled.

The password configured locally must be the same as that configured on the peer.

Changing the password will also remove the sessions and all LSPs based on the sessions.

This command takes effect only after MPLS LDP is enabled in the corresponding view.

Examples

# Enable LDP MD5 authentication for peer 3.3.3.3 in the public network, and configure the authentication password as pass in plain text.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] md5-password plain 3.3.3.3 pass

# Enable LDP MD5 authentication for peer 3.3.3.3 in the VPN instance vpn1, and configure the authentication password as pass in plain text.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] md5-password plain 3.3.3.3 pass

mpls

Syntax

mpls

undo mpls

View

System view, interface view

Default level

2: System level

Parameters

None

Description

Use the mpls command in system view to enable MPLS globally and enter MPLS view.

Use the undo mpls command in system view to disable MPLS globally.

Use the mpls command in interface view to enable MPLS for the interface.

Use the undo mpls command in interface view to disable MPLS for the interface.

By default, MPLS capability is disabled globally and on all interfaces.

Configure the MPLS LSR ID before enabling MPLS capability. Enable MPLS globally before enabling it for an interface.

Related commands: mpls lsr-id.

Examples

# Enable MPLS globally.

<Sysname> System-view

[Sysname] mpls lsr-id 1.1.1.1

[Sysname] mpls

[Sysname-mpls] quit

# Enable MPLS for interface GigabitEthernet 4/1/1.

<Sysname> System-view

[Sysname] interface GigabitEthernet 4/1/1

[Sysname-GigabitEthernet4/1/1] mpls

mpls ldp (interface view)

Syntax

mpls ldp

undo mpls ldp

View

Interface view

Default level

2: System level

Parameters

None

Description

Use the mpls ldp command to enable LDP on an interface.

Use the undo mpls ldp command to disable LDP on an interface.

By default, LDP is disabled on an interface.

After you enable LDP on an interface, the interface will periodically send Hello messages.

Before enabling LDP in interface view, complete the following tasks:

· Use the mpls lsr-id command in system view to set the node LSR-ID.

· Use the mpls command in system view to enable MPLS.

· Use the mpls ldp command in system view to enable MPLS LDP globally.

· Use the mpls command in interface view to enable MPLS for the interface.

If the interface is bound to a VPN instance, use the mpls ldp vpn-instance command to enable LDP for the VPN instance. For more information about the mpls ldp vpn-instance command, see the chapter “MPLS L3VPN configuration commands.”

NOTE:

Examples

# Enable LDP for interface GigabitEthernet 4/1/1.

<Sysname> System-view

[Sysname] interface GigabitEthernet4/1/1

[Sysname-GigabitEthernet4/1/1] mpls

[Sysname-GigabitEthernet4/1/1] mpls ldp

mpls ldp (system view)

Syntax

mpls ldp

undo mpls ldp

View

System view

Default level

2: System level

Parameters

None

Description

Use the mpls ldp command to enable LDP globally and enter MPLS LDP view.

Use the undo mpls ldp command to disable LDP globally and remove all LDP instances.

By default, MPLS LDP is disabled.

To configure the mpls ldp command, first configure the MPLS LSR ID and enable MPLS globally for the LSR.

Examples

# Enable LDP globally and enter MPLS LDP view.

<Sysname> System-view

[Sysname] mpls lsr-id 1.1.1.1

[Sysname] mpls

[Sysname-mpls] quit

[Sysname] mpls ldp

[Sysname-mpls-ldp]

mpls ldp remote-peer

Syntax

mpls ldp remote-peer remote-peer-name

undo mpls ldp remote-peer remote-peer-name

View

System view

Default level

2: System level

Parameters

remote-peer-name: Name of the remote peer, a case-insensitive string of 1 to 32 characters.

Description

Use the mpls ldp remote-peer command to create a remote peer entity and enter MPLS LDP remote peer view.

Use the undo mpls ldp remote-peer command to remove a remote peer entity.

Related commands: remote-ip.

Examples

# Create a remote peer entity named BJI and enter MPLS LDP remote peer view.

<Sysname> System-view

[Sysname] mpls ldp remote-peer BJI

[Sysname-mpls-ldp-remote-bji]

mpls ldp timer hello-hold

Syntax

mpls ldp timer hello-hold value

undo mpls ldp timer hello-hold

View

Interface view, MPLS LDP remote peer view

Default level

2: System level

Parameters

value: Length of time for the Hello timer, in the range of 1 to 65535, in seconds.

Description

Use the mpls ldp timer hello-hold command to set a Hello timer.

Use the undo mpls ldp timer hello-hold command to restore the default.

In interface view, you configure the link Hello timer. In MPLS LDP remote peer view, you configure the targeted Hello timer.

By default, the value of the link Hello timer is 15 seconds, and that of the targeted Hello timer is 45 seconds.

Changing the values of the Hello timers does not affect any existing session.

Related commands: mpls ldp (interface view) and mpls ldp (system view).

Examples

# Set the link Hello timer for local sessions to 100 seconds on interface GigabitEthernet 4/1/1.

<Sysname> System-view

[Sysname] interface GigabitEthernet 4/1/1

[Sysname-GigabitEthernet4/1/1] mpls

[Sysname-GigabitEthernet4/1/1] mpls ldp

[Sysname-GigabitEthernet4/1/1] mpls ldp timer hello-hold 100

mpls ldp timer keepalive-hold

Syntax

mpls ldp timer keepalive-hold value

undo mpls ldp timer keepalive-hold

View

Interface view, MPLS LDP remote peer view

Default level

2: System level

Parameters

value: Length of time for the Keepalive timer, in the range of 1 to 65535, in seconds.

Description

Use the mpls ldp timer keepalive-hold command to set a keepalive timer.

Use the undo mpls ldp timer keepalive-hold command to restore the default.

In interface view, you configure the link keepalive timer. In MPLS LDP remote peer view, you configure the targeted keepalive timer.

By default, both the link keepalive timer and targeted keepalive timer are set to 45 seconds.

If more than one link with LDP enabled exists between two LSRs when, for example, the two LSRs are connected through multiple interfaces, the Keepalive timers of all the links must be identical for sessions to be stable.

Changing the values of the Keepalive timers will cause all LDP sessions and the LSPs based on the sessions to be removed and then reestablished.

Examples

# Set the link Keepalive timer for local sessions to 50 seconds on interface GigabitEthernet 4/1/1.

<Sysname> System-view

[Sysname] interface GigabitEthernet 4/1/1

[Sysname-GigabitEthernet4/1/1] mpls

[Sysname-GigabitEthernet4/1/1] mpls ldp

[Sysname-GigabitEthernet4/1/1] mpls ldp timer keepalive-hold 50

mpls ldp transport-address

Syntax

In interface view:

mpls ldp transport-address { ip-address | interface }

undo mpls ldp transport-address

In MPLS LDP remote peer view:

mpls ldp transport-address ip-address

undo mpls ldp transport-address

View

Interface view, MPLS LDP remote peer view

Default level

2: System level

Parameters

ip-address: Specifies the IP address to be used as the LDP transport address.

interface: Specifies that LDP uses the IP address of the current interface as the LDP transport address.

Description

Use the mpls ldp transport-address command to configure an LDP transport address.

Use the undo mpls ldp transport-address command to restore the default.

By default, a transport address takes the value of the MPLS LSR ID.

In interface view, you configure the link Hello transport address; in MPLS LDP remote peer view, you configure the targeted Hello transport address.

Examples

# On interface GigabitEthernet 4/1/1, configure the link Hello transport address as the IP address of the current interface.

<Sysname> System-view

[Sysname] interface GigabitEthernet 4/1/1

[Sysname-GigabitEthernet4/1/1] mpls

[Sysname-GigabitEthernet4/1/1] mpls ldp

[Sysname-GigabitEthernet4/1/1] mpls ldp transport-address interface

# Configure the targeted Hello transport address as 10.1.1.1.

[Sysname] mpls ldp remote-peer BJI

[Sysname-mpls-ldp-remote-bji] remote-ip 3.3.3.3

[Sysname-mpls-ldp-remote-bji] mpls ldp transport-address 10.1.1.1

mpls lspv

Syntax

mpls lspv

undo mpls lspv

View

System view

Default level

2: System level

Parameters

None

Description

Use the mpls lspv command to enable the LSP verification function and enter MPLS LSPV view.

Use the undo mpls lspv command to disable the LSP verification function.

By default, LSP verification is disabled.

Examples

# Enable LSP verification and enter MPLS LSPV view.

<Sysname> system-view

[Sysname] mpls lspv

[Sysname-mpls-lspv]

mpls lsr-id

Syntax

mpls lsr-id lsr-id

undo mpls lsr-id

View

System view

Default level

2: System level

Parameters

lsr-id: ID for identifying the LSR, in dotted decimal notation.

Description

Use the mpls lsr-id command to configure the ID of an LSR.

Use the undo mpls lsr-id command to remove the ID of an LSR.

By default, no LSR ID is configured.

Your must configure the LSR ID of an LSR before configuring any other MPLS commands.

H3C recommens using the address of a loopback interface on the LSR as the ID.

Related commands: display mpls interface.

Examples

# Set the LSR ID to 3.3.3.3.

<Sysname> system-view

[Sysname] mpls lsr-id 3.3.3.3

mpls mtu

Syntax

mpls mtu value

undo mpls mtu

View

Interface view

Default level

2: System level

Parameters

value: MPLS MTU of the interface, in the range of 46 to 65535.

Description

Use the mpls mtu command to specify the MPLS MTU of an interface.

Use the undo mpls mtu command to restore the default.

By default, the MPLS MTU is not configured for an interface. In this case, MPLS packets will be fragmented based on the MTU of the interface, and the length of a fragment will not include that of the MPLS label. Thus, after an MPLS label is inserted into a fragment, the length of the MPLS fragment may be larger than the interface MTU.

The commands are effective only when MPLS is enabled on the interface.

If the MPLS MTU is larger than the interface MTU, data forwarding may fail.

The commands do not apply to TE tunnel interfaces.

Examples

# Configure the MPLS MTU of interface GigabitEthernet 3/1/1 as 1000.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] quit

[Sysname] interface GigabitEthernet 3/1/1

[Sysname-GigabitEthernet3/1/1] mpls

[Sysname-GigabitEthernet3/1/1] mpls mtu 1000

path-vectors

Syntax

path-vectors pv-number

undo path-vectors

View

MPLS LDP VPN instance view, MPLS LDP view

Default level

2: System level

Parameters

pv-number: Path vector length, in the range of 1 to 32.

Description

Use the path-vectors command to configure the path vector length.

Use the undo path-vectors command to restore the default.

By default, the path vector length is 32. That is, the number of LSR IDs in a path vector cannot exceed 32.

This command must be configured before you enable LDP on any interface.

Related commands: hops-count and loop-detect.

Examples

# Set the LSP path vector length to 3 for the public network LDP instance.

<Sysname> system-view

[Sysname] mpls ldp

[Sysname-mpls-ldp] path-vectors 3

# Set the LSP path vector length to 3 for LDP instance vpn1.

<Sysname> system-view

[Sysname] mpls ldp vpn-instance vpn1

[Sysname-mpls-ldp-vpn-instance-vpn1] path-vectors 3

periodic-tracert

Syntax

undo periodic-tracert destination-address mask-length

View

MPLS LSPV view

Default level

2: System level

Parameters

destination-address mask-length: Specifies a FEC by a destination IP address and the mask length of the destination address. The mask-length argument ranges from 0 to 32.

-a source-ip: Specifies the source IP address for MPLS echo request messages. By default, the MPLS LSR ID is used as the source address of MPLS echo request messages.

-exp exp-value: Specifies the EXP value of the label. exp-value ranges from 0 to 7 and defaults to 0.

-h ttl-value: Specifies the TTL value to be carried by MPLS echo request messages. ttl-number is in the range of 1 to 255 and defaults to 30.

-m wait-time: Specifies the interval for performing LSP tracert. wait-time is in the range of 15 to 120 and defaults to 60, in minutes.

-t time-out: Specifies the timeout time for waiting for the response of an MPLS echo request message. time-out is in the range of 0 to 65535 and defaults to 2000, in milliseconds.

-u retry-attempt: Specifies the maximum number of times that MPLS echo request messages can be sent if no response is received. retry-attempt ranges from 1 to 9 and defaults to 3.

Description

Use the periodic-tracert command to enable periodic LSP tracert for a FEC.

Use the undo periodic-tracert command to disable periodic LSP tracert for a FEC.

By default, the periodic LSP tracert for a FEC is not enabled.

The periodic LSP tracert function is for locating faults of an LSP periodically. It detects the consistency of the forwarding plane and control plane and records detection results into logs. You can know whether an LSP has failed by checking the logs.

If you configure BFD as well as periodic tracert for an LSP, once the periodic LSP tracert function detects an LSP fault or inconsistency of the forwarding plane and control plane, the BFD session for the LSP will be deleted, and a new BFD session will be established according to the control plane.

Examples

# Enable periodic tracert for the LSP to destination 1.1.1.9/32.

<Sysname> system-view

[Sysname] mpls lspv

[Sysname-mpls-lspv] periodic-tracert 1.1.1.9 32

ping lsp ipv4

Syntax

View

Any view

Default level

0: Visit level

Parameters

-a source-ip: Specifies the source address for the echo request messages to be sent.

-c count: Specifies the number of echo request messages to be sent. The count argument ranges from 1 to 4294967295 and defaults to 5.

-exp exp-value: Specifies the EXP value for the echo request messages. The exp-value argument ranges from 0 to 7 and default to 0.

-h ttl-value: Specifies the TTL value for the echo request messages. The ttl-value argument ranges from 1 to 255 and defaults to 255.

-m wait-time: Specifies the interval for sending echo request messages. The wait-time argument ranges from 1 to 10000 milliseconds, and default to 200 milliseconds.

-r reply-mode: Specifies the reply mode of the receiver in response to the echo request messages. The reply-mode argument can be 1 or 2, where 1 means “Do not response” and 2 means “Respond using a UDP packet.” The default is 2.

-s packet-size: Specifies the payload length of the echo request messages. The packet-size argument ranges from 65 to 8100 bytes and defaults to 100 bytes.

-t time-out: Specifies the timeout interval for the response to an echo request message. The time-out argument ranges from 0 to 65535 milliseconds and defaults to 2000 milliseconds.

-v: Displays detailed response information.

ipv4 dest-addr mask-length: Specifies a FEC by an IPv4 destination address and the mask length of the destination address. The mask-length argument ranges from 0 to 32.

destination-ip-addr-header: Specifies the destination address in the IP header of MPLS echo request messages. It can be any address on segment 127.0.0.0/8—any local loopback address.

Description

Use the ping lsp ipv4 command to check LSP connectivity.

Examples

# Check the connectivity of the LSP to destination 3.3.3.9/32.

<Sysname> ping lsp ipv4 3.3.3.9 32

LSP Ping FEC: IPV4 PREFIX 3.3.3.9/32 : 100 data bytes, press CTRL_C to break

Reply from 100.1.2.1: bytes=100 Sequence=0 time = 31 ms

Reply from 100.1.2.1: bytes=100 Sequence=1 time = 62 ms

Reply from 100.1.2.1: bytes=100 Sequence=2 time = 62 ms

Reply from 100.1.2.1: bytes=100 Sequence=3 time = 62 ms

Reply from 100.1.2.1: bytes=100 Sequence=4 time = 62 ms

--- FEC: IPV4 PREFIX 3.3.3.9/32 ping statistics ---

5 packet(s) transmitted

5 packet(s) received

0.00% packet loss

round-trip min/avg/max = 31/55/62 ms

prefix-label advertise

Syntax

prefix-label advertise

undo prefix-label advertise

View

MPLS LDP remote peer view

Default level

2: System level

Parameters

None

Description

Use the prefix-label advertise command to configure LDP to advertise prefix-based labels through remote sessions.

Use the undo prefix-label advertise command to restore the default.

By default, LDP does not advertise prefix-based label through a remote session.

A router can advertise prefix-based labels to its remote peers through remote sessions only after you have configured the prefix-label advertise command. However, a router can receive labels advertised by its remote peers no matter whether you have configured this command or not.

After the router receives labels advertised by the peer, the corresponding LDP LSP can be established if the following conditions are satisfied:

· The FEC’s outgoing interface is the MPLS TE tunnel interface.

· The destination address of the MPLS TE tunnel, the remote peer address specified through the remote-ip command, and the LSR ID of the remote peer are the same.

· The MPLS TE tunnel interface is enabled with the MPLS capability.

Examples

# Configure LDP to advertise prefix-based labels through a remote session.

<Sysname> system-view

[Sysname] mpls ldp remote-peer bji

[Sysname-mpls-ldp-remote-bji] prefix-label advertise

remote-ip

Syntax

remote-ip ip-address

undo remote-ip

View

MPLS LDP remote peer view

Default level

2: System level

Parameters

ip-address: IP address of the remote peer.

Description

Use the remote-ip command to configure the LDP remote peer IP address.

Use the undo remote-ip command to remove the configuration.

The LDP remote peer IP address must be the MPLS LSR ID of the remote peer. Two peers use their respective MPLS LSR ID as the transport addresses to establish the TCP connection.

Related commands: mpls ldp remote-peer.

Examples

# Configure the remote peer IP address as 3.3.3.3.

<Sysname> system-view

[Sysname] mpls ldp remote-peer BJI

[Sysname-mpls-ldp-remote-bji] remote-ip 3.3.3.3

remote-ip bfd

Syntax

remote-ip bfd

undo remote-ip bfd

View

MPLS LDP remote peer view

Default level

2: System level

Parameters

None

Description

Use the remote-ip bfd command to enable BFD to detect the IP connectivity to the remote LDP peer.

Use the undo remote-ip bfd command to disable BFD detection of the IP connectivity to the remote LDP peer.

By default, BFD detection is disabled.

Examples

# Enable BFD to detect the IP connectivity to the remote LDP peer bji.

<Sysname> system-view

[Sysname] mpls ldp remote-peer bji

[Sysname-mpls-ldp-remote-bji] remote-ip bfd

reset mpls ldp

Syntax

reset mpls ldp [ all | [ vpn-instance vpn-instance-name ] [ fec mask | peer peer-id ] ]

View

User view

Default level

1: Monitor level

Parameters

all: Resets sessions of all LDP instances (including the public one and the private ones).

vpn-instance vpn-instance-name: Resets the LDP sessions of the specified VPN. vpn-instance-name specifies an MPLS L3VPN by its instance name, a case-sensitive string of 1 to 31 characters.

fec mask: Resets the LDP sessions for the specified FEC. fec mask specifies a FEC by the destination IP address and mask.

peer peer-id: Resets the LDP session with the specified peer. peer-id specifies a peer by its LSR ID.

Description

Use the reset mpls ldp command to reset LDP sessions.

With no parameters specified, the command resets all sessions of the public network LDP instance.

Examples

# Reset the sessions of all public network LDP instances.

<Sysname> reset mpls ldp

# Reset the sessions of all LDP instances.

<Sysname> reset mpls ldp all

# Reset the sessions of LDP instance vpn1.

<Sysname> reset mpls ldp vpn-instance vpn1

# Reset the sessions of a specific FEC.

<Sysname> reset mpls ldp 2.2.2.2 24

# Reset the sessions with a specific peer.

<Sysname> reset mpls ldp peer 2.2.2.9

reset mpls statistics interface

Syntax

reset mpls statistics interface { interface-type interface-number | all }

View

User view

Default level

1: Monitor level

Parameters

interface-type interface-number: Clears statistics collected for the specified interface.

all: Clears statistics collected for all interfaces.

Description

Use the reset mpls statistics interface command to clear MPLS statistics for a specific or all MPLS interfaces.

Related commands: display mpls statistics interface.

Examples

# Clear MPLS statistics for interface GigabitEthernet 4/1/1.

<Sysname> reset mpls statistics interface GigabitEthernet 4/1/1

reset mpls statistics lsp

Syntax

reset mpls statistics lsp { index | all | name lsp-name }

View

User view

Default level

1: Monitor level

Parameters

index: Clears statistics for the LSP with the specified index number. The LSP index is in the range of 0 to 4294967295.

all: Clears statistics for all LSPs.

name lsp-name: Clears statistics for the LSP with the specified name. The LSP name is a string of 1 to 15 characters.

Description

Use the reset mpls statistics lsp command to clear LSP statistics.

Related commands: display mpls statistics lsp.

Examples

# Clear MPLS statistics for LSP lsp1.

<Sysname> reset mpls statistics lsp name lsp1

static-lsp egress

Syntax

static-lsp egress lsp-name incoming-interface interface-type interface-number in-label in-label

undo static-lsp egress lsp-name

View

System view

Default level

2: System level

Parameters

lsp-name: Name for the LSP, a string of 1 to 15 characters.

incoming-interface interface-type interface-number: Specifies an incoming interface by its type and number.

in-label in-label: Specifies the incoming label, which can be 0, 3, or a value in the range of 16 to 1023.

Description

Use the static-lsp egress command to configure a static LSP taking the current LSR as the egress.

Use the undo static-lsp egress command to remove a static LSP taking the current LSR as the egress.

Related commands: display mpls static-lsp, static-lsp ingress, and static-lsp transit.

Examples

# Configure static LSP bj-sh, taking the current LSR as the egress, GigabitEthernet4/0/1 as the incoming interface, and 233 as the incoming label.

<Sysname> system-view

[Sysname] static-lsp egress bj-sh incoming-interface GigabitEthernet 4/0/1 in-label 233

static-lsp ingress

Syntax

static-lsp ingress lsp-name destination dest-addr { mask | mask-length } { nexthop next-hop-addr | outgoing-interface interface-type interface-number } out-label out-label

undo static-lsp ingress lsp-name

View

System view

Default level

2: System level

Parameters

lsp-name: Name for the LSP, a string of 1 to 15 characters.

destination dest-addr: Specifies the destination IP address of an LSP.

mask: Mask of the destination IP address.

mask-length: Length of the mask for the destination address, in the range of 0 to 32.

nexthop next-hop-addr: Specifies the next hop address.

outgoing-interface interface-type interface-number: Specifies an outgoing interface by its type and number.

out-label out-label: Specifies the outgoing label, which can be 0, 3, or a value in the range of 16 to 1023.

Description

Use the static-lsp ingress command to configure a static LSP taking the current LSR as the ingress.

Use the undo static-lsp ingress command to remove a static LSP taking the current LSR as the ingress.

When you configure a static LSP on the local LSR, the next hop or outgoing interface specified must be consistent with the next hop or outgoing interface of the optimal route in the routing table. If you configure a static IP route for the LSP, be sure to specify the same next hop or outgoing interface for the static route and the static LSP.

Do not specify the public address of an interface on the local LSR as the next hop address.

Related commands: display mpls static-lsp, static-lsp egress, and static-lsp transit.

Examples

# Configure static LSP bj-sh to destination address 202.25.38.1/24, taking the current LSR as the ingress, 202.55.25.33 as the next hop address, and 237 as the outgoing label.

<Sysname> system-view

[Sysname] static-lsp ingress bj-sh destination 202.25.38.1 24 nexthop 202.55.25.33 out-label 237

static-lsp transit

Syntax

static-lsp transit lsp-name incoming-interface interface-type interface-number in-label in-label { nexthop next-hop-addr | outgoing-interface interface-type interface-number } out-label out-label

undo static-lsp transit lsp-name

View

System view

Default level

2: System level

Parameters

lsp-name: Name for the LSP, a string of 1 to 15 characters.

incoming-interface interface-type interface-number: Specifies an incoming interface by its type and number.

in-label in-label: Specifies the incoming label, in the range of 16 to 1023.

nexthop next-hop-addr: Specifies the next hop address.

outgoing-interface interface-type interface-number: Specifies an outgoing interface by its type and number.

out-label out-label: Specifies the outgoing label, which can be a 0, 3, or a value in the range of 16 to 1023.

Description

Use the static-lsp transit command to configure a static LSP taking the current LSR as a transit LSR.

Use the undo static-lsp transit command to remove a static LSP taking the current LSR as a transit LSR.

The next hop address cannot be any local public network IP address.

Related commands: static-lsp egress and static-lsp ingress.

Examples

# Configure static LSP bj-sh, taking the local LSR as a transit LSR, interface GigabitEthernet 4/2/1 as the incoming interface, 123 as the incoming label, 202.34.114.7 as the next hop address, and 253 as the outgoing label.

<Sysname> system-view

[Sysname] static-lsp transit bj-sh incoming-interface GigabitEthernet 4/2/1 in-label 123 nexthop 202.34.114.7 out-label 253

statistics interval

Syntax

statistics interval interval-time

undo statistics interval

View

MPLS view

Default level

2: System level

Parameters

interval-time: LSP statistics reading interval, in the range of 30 to 65535, in seconds.

Description

Use the statistics interval command to set the interval for reading collected statistics.

Use the undo statistics interval command to restore the default.

By default, the LSP statistics reading interval is 0, which indicates that the system does not read collected LSP statistics.

Related commands: display mpls statistics interface and display mpls statistics lsp.

Examples

# Set the LSP statistics reading interval to 30 seconds.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] statistics interval 30

tracert lsp ipv4

Syntax

tracert lsp [ -a source-ip | -exp exp-value | -h ttl-value | -r reply-mode | -t time-out ] * ipv4 dest-addr mask-length [ destination-ip-addr-header ]

View

Any view

Default level

0: Visit level

Parameters

-a source-ip: Specifies the source IP address for the echo request messages.

-exp exp-value: Specifies the EXP value for the echo request messages. The exp-value argument ranges from 0 to 7 and defaults to 0.

-h ttl-value: Specifies the TTL value for the echo request messages. The ttl-value argument ranges from 1 to 255 and defaults to 30.

-t time-out: Specifies the timeout interval for the response to an echo request message. The time-out argument ranges from 0 to 65535 milliseconds and defaults to 2000 milliseconds.

ipv4 dest-addr mask-length: Specifies a FEC by an IPv4 destination address and the mask length of the destination address. The mask-length argument ranges from 0 to 32.

destination-ip-addr-header: Specifies the destination address in the IP header of the MPLS echo request messages. It can be any address on segment 127.0.0.0/8—any local loopback address.

Description

Use the tracert lsp ipv4 command to locate MPLS LSP errors on the LSP for a FEC.

Examples

# Locate errors along the LSP for FEC 3.3.3.9.

<Sysname> tracert lsp ipv4 3.3.3.9 32

LSP Trace Route FEC: LDP IPV4 PREFIX 3.3.3.9/32 , press CTRL_C to break.

TTL Replier Time Type Downstream

0 Ingress 10.4.5.1/[1025]

1 10.4.5.1 1 Transit 100.3.4.1/[1024]

2 100.1.4.2 63 Transit 100.1.2.1/[3]

3 100.1.2.1 129 Egress

ttl expiration enable

Syntax

ttl expiration enable

undo ttl expiration enable

View

MPLS view

Default level

2: System level

Parameters

None

Description

Use the ttl expiration enable command to enable the router to send back an ICMP TTL exceeded message in response to an MPLS TTL expired packet.

Use the undo ttl expiration enable command to disable sending back ICMP TTL exceeded messages for MPLS TTL expired packets.

By default, this function is enabled.

Related commands: ttl expiration pop.

Examples

# Disable the system from sending ICMP TTL exceeded messages for received MPLS TTL expired packets.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] undo ttl expiration enable

ttl expiration pop

Syntax

ttl expiration pop

undo ttl expiration pop

View

MPLS view

Default level

2: System level

Parameters

None

Description

Use the ttl expiration pop command to configure the system to use IP routes to send back the ICMP TTL exceeded messages for TTL-expired MPLS packets that have only one level of label.

Use the undo ttl expiration pop command to configure the system to use LSPs to send back the ICMP TTL exceeded messages for TTL-expired MPLS packets that have only one level of label.

By default, an ICMP TTL exceeded message is sent back along an IP route when the TTL of an MPLS packet with a one-level label stack expires.

The configuration does not take effect for an MPLS packet with multiple levels of labels. The ICMP TTL exceeded message is always sent back along the LSP when the TTL of such a packet expires.

Related commands: ttl propagate.

Examples

# Configure the router to use LSPs to send back ICMP TTL exceeded messages for TTL-expired MPLS packets that have only one level of label.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] undo ttl expiration pop

ttl propagate

Syntax

ttl propagate { public | vpn }

undo ttl propagate { public | vpn }

View

MPLS view

Default level

2: System level

Parameters

public: Enables MPLS IP TTL propagation for public network packets.

vpn: Enables MPLS IP TTL propagation for VPN packets.

Description

Use the ttl propagate command to enable MPLS IP TTL propagation for public network packets or VPN packets.

Use the undo ttl propagate command to disable the function.

By default, MPLS IP TTL propagation is enabled for only public network packets.

Related commands: ttl expiration pop.

Examples

# Enable MPLS IP TTL propagation for VPN packets.

<Sysname> system-view

[Sysname] mpls

[Sysname-mpls] ttl propagate vpn

08-MPLS Command Reference

display mpls ldp

display mpls ldp interface

display mpls lsp

display mpls lsp bfd ipv4

display mpls static-lsp

display mpls statistics interface

display mpls statistics lsp

graceful-restart (MPLS LDP view)

label advertise

loop-detect

mpls ldp (interface view)

mpls ldp (system view)

mpls ldp remote-peer

mpls ldp timer keepalive-hold

mpls ldp transport-address

mpls lspv

path-vectors

ping lsp ipv4

prefix-label advertise

remote-ip bfd

reset mpls statistics interface

reset mpls statistics lsp

static-lsp egress

static-lsp ingress

static-lsp transit

statistics interval

tracert lsp ipv4

ttl propagate

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