color value: Specifies a color value in the range of 1 to 4294967295. If you do not specify this option, the command displays mapping relationships between all color values and flexible algorithms.

Examples

# Display mapping relationships between color values and flexible algorithms.

<Sysname> display mpls color-mapping flex-algo

Color Flex-Algo

1 128

2 129

3 128

4 130

Table 1 Command output

Field	Description
Color	Color value.
Flex-Algo	Flexible algorithm ID.

‌

display mpls forwarding ilm

Use display mpls forwarding ilm to display Incoming Label Map (ILM) entries.

Syntax

display mpls forwarding ilm [ label ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

label: Displays the ILM entry with the specified incoming label. The value range for this argument is 16 to 1048575. If you do not specify an incoming label, this command displays ILM entry information for all incoming labels.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays ILM entries on the active MPU.

Usage guidelines

An ILM entry records the label operation type, outgoing label, and other forwarding information.

After an LSR receives a labeled packet, it performs the following operations:

1. Identifies the ILM entry that matches the top label of the packet.

2. Performs the specified label operation.

3. Forwards the packet.

Examples

# Display all ILM entries.

<Sysname> display mpls forwarding ilm

Total ILM entries: 3

Flags: T - Forwarded through a tunnel

N - Forwarded through the outgoing interface to the nexthop IP address

B - Backup forwarding information

A - Active forwarding information

M – P2MP forwarding information

InLabel Oper VRF Flag SwapInfo Forwarding Info

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

30 SWAP 0 T 1000 1024

1279 POP 0 - - -

1407 SWAP 0 NA 1271 GE1/0/3 50.2.0.2

NB 1270 Tun0 0.0.0.0

Table 2 Command output

Field	Description
Total ILM entries	Total number of ILM entries.
InLabel	Incoming label.
Oper	Operation type: · POP—Pops the label. · POPGO—Pops the label and forwards the packet to another tunnel. · SWAP—Swaps the label.
VRF	Index of a VPN instance.
Flag	Forwarding flag: · T—Forwarded through a tunnel. · N—Forwarded through the outgoing interface to the next hop IP address. · B—Backup forwarding information. · A—Active forwarding information. · M—P2MP forwarding information.‌
SwapInfo	Outgoing label value.
Forwarding Info	Forwarding information: · When the forwarding flag is N, the forwarding information records the outgoing interface and the next hop. · When the forwarding flag is T, the forwarding information records the NID.

display mpls forwarding nhlfe

Use display mpls forwarding nhlfe to display Next Hop Label Forwarding Entry (NHLFE) entries.

Syntax

display mpls forwarding nhlfe [ nid [ relation ] | tunnel-type { crlsp | gre | local | lsp | te } ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nid: Displays the NHLFE entry with the specified NID. The NID value range is 0 to 4294967294. If you do not specify an NID, this command displays NHLFE entry information for all NIDs.

relation: Displays information about entries associated with the specified NHLFE entry.

tunnel-type: Display NHLFE entry information for the specified type of tunnels. If you do not specify this keyword, the command displays NHLFE entry information for all types of tunnels.

crlsp: Specifies static and RSVP CRLSPs.

gre: Specifies GRE tunnels.

local: Specifies LSPs of directly connected next hops.

lsp: Specifies static, LDP, and BGP LSPs.

te: Specifies tunnels of MPLS TE tunnel interfaces.

v2v: Specifies V2V tunnels.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays NHLFE entries on the active MPU.

Usage guidelines

An NHLFE entry records label forwarding information, such as the outgoing label and outgoing interface. NHLFE entries are mainly used to add multiple labels to packets.

To add multiple labels to a packet, an LSR performs the following operations:

1. Obtains the bottom label and NID in the matching FIB or ILM entry.

2. Obtains the outer label in the NHLFE entry identified by the NID.

Examples

# Display the NHLFE entry with NID 2048.

<Sysname> display mpls forwarding nhlfe 2048

Flags: T - Forwarded through a tunnel

N - Forwarded through the outgoing interface to the nexthop IP address

B - Backup forwarding information

A - Active forwarding information

M – P2MP forwarding information

S – Secondary backup path

NID Tnl-Type Flag OutLabel Forwarding Info

Attri-Val --------------------------------------------------------------------------------

2048 LSP NA 2025 GE1/0/2 10.11.112.26

# Display all NHLFE entries.

<Sysname> display mpls forwarding nhlfe

Total NHLFE entries: 6

Flags: T - Forwarded through a tunnel

N - Forwarded through the outgoing interface to the nexthop IP address

B - Backup forwarding information

A - Active forwarding information

M – P2MP forwarding information

S – Secondary backup path

NID Tnl-Type Flag OutLabel Forwarding Info

Attri-Val

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

10 - TA - 2049

20 - TA - 2050

2048 LSP NA 2025 GE1/0/2 10.11.112.26

2049 LSP NA 3024 GE1/0/2 10.11.112.26

TB 3026 20

2050 LSP NA 3025 GE1/0/1 10.11.113.26

268435456 TE TA - 256

Tunnel0

Table 3 Command output

Field	Description
Total NHLFE entries	Total number of NHLFE entries.
NID	NHLFE entry index.
Tnl-Type	Tunnel type: · LOCAL—Direct LSP tunnel. · LSP—Static LSP tunnel, or LSP tunnel signaled using LDP or BGP. · TE—TE tunnel. · GRE—GRE tunnel. · V2V—V2V tunnel. This field displays a hyphen (-) if the tunnel type is invalid.
Flag	Forwarding flag: · T—Forwarded through a tunnel. · N—Forwarded through the outgoing interface to the next hop IP address. · B—Backup forwarding information. · A—Active forwarding information. · M—P2MP forwarding information.‌ · S—The second backup tunnel.
OutLabel	Outgoing label.
Forwarding Info	Forwarding information: · When the forwarding flag is N, the forwarding information records the outgoing interface and the next hop. · When the forwarding flag is T, the forwarding information records the NID.
Attri-Val	Forwarding attribute. This field displays tunnel interface name and is displayed only when the value for the Tnl-Type field is TE or GRE.

display mpls interface

Use display mpls interface to display MPLS interface information, including the interface name, interface status, and interface MPLS MTU.

Syntax

display mpls interface [ interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type interface-number: Specifies an interface by the interface type and number. If you do not specify an interface, this command displays MPLS information for all MPLS-enabled interfaces except VA interfaces. For more information about VA interfaces, see PPPoE in Layer 2—WAN Access Configuration Guide.

Examples

# Display all MPLS interfaces.

<Sysname> display mpls interface

Interface Status MPLS MTU

GE1/0/1 Up 1500

GE1/0/2 Up 1500

Table 4 Command output

Field	Description
Interface	Interface name.
Status	Interface state.
MPLS MTU	MPLS MTU (in bytes) of the interface. This field displays a hyphen (-) if the interface is not configured with an MPLS MTU.

Related commands

mpls enable

mpls mtu

display mpls label

Use display mpls label to display MPLS label information.

Syntax

display mpls label { label-value1 [ to label-value2 ] | all } [ state { alloc | idle | inuse | pending } ] [ verbose ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

label-value1: Specifies a label value in the range of 16 to 1048575. If used with the label-value2 argument, the label-value1 argument represents the start label of a label range.

to label-value2: Specifies the end label of the label range. The value range for the end label is 16 to 1048575. If you specify a label range by using the label-value1 argument and the to label-value2 option, this command displays usage information for the specified range of labels.

all: Specifies all labels.

state: Displays information about MPLS labels in the specified state. If you do not specify this keyword, the command displays information about MPLS labels in all states.

alloc: Displays MPLS labels that are being requested.

idle: Displays idle MPLS labels.

inuse: Displays MPLS labels in use.

pending: Displays MPLS labels that have been released but are still in use.

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

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays MPLS label information on the active MPU.

Examples

# Display brief information for labels 1025 through 1027.

<Sysname> display mpls label 1025 to 1027

Label Owner State

1025 LDP Alloc

1026 LDP Alloc

1027 LDP Inuse

# Display brief information about labels that are being requested and in the range of 1025 to 1027.

<Sysname> display mpls label 1025 to 1027 state alloc

Label Owner State

1025 LDP Alloc

1026 LDP Alloc

# Display detailed information for labels 1025 through 1027.

<Sysname> display mpls label 1025 to 1027 verbose

Label: 1025

State: Idle

Owner: -

FEC : -

Version: 0

Label: 1026

State: Idle

Owner: -

FEC : -

Version: 0

Label: 1027

State: Idle

Owner: -

FEC : -

Version: 0

Table 5 Command output

Field	Description
Label	Label value.
Owner	Protocol that is using the label: · Static—Static LSP. · LDP. · BGP. · StaticCR—Static CRLSP. · RSVP. · L2VPN. · ISIS. · OSPF. · VSRP. · NAT. This field displays a hyphen (-) when the label state is Idle.
State	Usage state of the label: · Idle—The label is idle. · Alloc—The label has been allocated. · Pending—The label has been released but is still used by an LSP entry. · Inuse—The label has been allocated and used by an LSP entry.
FEC	Forwarding equivalence class, which can be one of the following forms: · IP address/mask—Classifies FECs by destination address. · IP address/mask/LSINDEX—Classifies FECs by label stack index. · IP address/In Label—The LSP is created through BGP Peer-Set-SID. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC. If this field displays a hyphen (-), it indicates that the LSP is a static transit LSP, static egress LSP, static transit CRLSP, static egress CRLSP, or adjacency path for aggregate interface member ports. If this field displays Backup, it indicates that the LSP is a backup LSP of the previous LSP.
Version	Label version.

display mpls lsp

Use display mpls lsp to display LSP information.

Syntax

display mpls lsp [ egress | in-label label-value | ingress | outgoing-interface interface-type interface-number | protocol { bgp | isis | ldp | local | ospf | rsvp-te | static | static-cr } | transit ] [ vpn-instance vpn-instance-name ] [ ipv4-address mask-length | ipv6 [ ipv6-address prefix-length ] ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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

in-label label-value: Displays the LSPs using the specified label as the incoming label. The value range for the label-value argument is 16 to 1048575.

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

outgoing-interface interface-type interface-number: Displays the LSPs using the specified interface as the outgoing interface. The interface-type interface-number argument specifies an interface by its type and number.

protocol: Displays the LSPs established by a protocol.

bgp: Displays BGP LSPs.

ldp: Displays LDP LSPs.

local: Displays LSPs destined for the direct next hops, or displays LSPs that use the local MPLS TE tunnel interfaces or tunnel bundle interfaces as the LSP heads.

rsvp-te: Displays CRLSPs established by RSVP-TE.

static: Displays static LSPs.

static-cr: Displays static CRLSPs.

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

vpn-instance vpn-instance-name: Displays LSPs for the specified MPLS L3VPN instance. The vpn-instance-name is a case-sensitive string of 1 to 31 characters. If you do not specify this option, the command displays LSPs for the public network.

ipv4-address mask-length: Displays the IPv4 LSP for an FEC specified by an IPv4 address and a mask length. The value range for the mask length is 0 to 32.

ipv6: Displays IPv6 LSP information. If you do not specify this keyword, the command displays IPv4 LSP information.

ipv6-address prefix-length: Displays the IPv6 LSP for an FEC specified by an IPv6 address and a prefix length. The value range for the prefix length is 0 to 128.

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

Usage guidelines

If you do not specify any parameters, this command displays brief information about all LSPs. If you specify only the verbose keyword, this command displays detailed information about all LSPs.

Examples

# Display brief information about all IPv4 LSPs.

<Sysname> display mpls lsp

FEC Proto In/Out Label Out Inter/NHLFE/LSINDEX

100.100.100.100/24 LDP -/1049 GE1/0/1

Backup -/1050 GE1/0/2

100.100.100.10/24 LDP -/1051 GE1/0/3

Backup -/1050 GE1/0/2

100.100.100.10/24 LDP -/1049 GE1/0/4

101.100.100.10/24 LDP 1026/1049 GE1/0/1

102.100.100.10/24 LDP 1027/- -

103.100.100.10/24 LDP 1028/1049 Tunnel10

110.100.100.20/24 BGP -/1049 GE1/0/1

111.100.100.10/24 BGP 2028/1049 GE1/0/1

112.100.100.10/24 BGP 2029/- GE1/0/1

113.100.100.10/24 BGP 2030/1049 NHLFE1500

114.100.100.10/24 BGP 2031/1050 Tunnel100

100.100.100.100 Local -/- GE1/0/1

101.101.101.101/32 Static -/100 GE1/0/1

- Static 100/200 GE1/0/1

- Static 101/- GE1/0/1

200.200.200.200/64000/64000 RSVP -/1030 GE1/0/5

201.200.200.200/64000/64000 RSVP 1024/1031 GE1/0/5

202.200.200.200/64000/64000 RSVP 1025/- -

150.140.150.100/64001/0 StaticCR -/1000 GE1/0/5

- StaticCR 50/1001 GE1/0/5

- StaticCR 51/- -

Table 6 Command output

Field	Description
FEC	Forwarding equivalence class: · IP address/mask—Classifies FECs by destination address. · IP address/mask/LSINDEX—Classifies FECs by label stack index. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · IP address/Color—Classifies FECs by destination address and color attribute. · NID—Classifies FECs by NID. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC. · IP address/mask (Flex-Algo ID)—Classifies FECs by destination address and flexible algorithm ID. · IP address/private data/VPN instance index—Classifies FECs by IP address, private data, and VPN instance index. · This field displays a hyphen (-) if the LSP is a static transit LSP, static egress LSP, static transit CRLSP, or static egress CRLSP. This field displays Backup if the LSP is a backup LSP of the primary LSP. This field displays SecondBackup if the LSP is the second backup LSP of the primary LSP.
Proto	Label distribution protocol: · LDP. · BGP. · RSVP. · Static. · StaticCR—Static CRLSP. · Local—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · RSVP-P2MP—P2MP CRLSP established by RSVP-TE.
In/Out Label	Incoming label/outgoing label.
Out Inter/NHLFE/LSINDEX	Outgoing interface name, NHLFE entry index, or label stack index of the LSP. NHLFEnumber specifies the ingress LSP selected for the current LSP after route recursion. The ingress LSP is the one that matches the NHLFE entry with an NID of number. LSINDEXnumber specifies the ingress LSP selected for the current LSP after route recursion. The ingress LSP is the one that matches the LSINDEX entry with a label stack index of number.

# Display IPv6 LSP information.

<Sysname> display mpls lsp ipv6

FEC : 100:100:100:100:100:100:100:100/128

Protocol : BGP In-Label : 1200

Out-Label: 1300 Out-Interface: GE1/0/1

BkLabel : 1400 BkInterface : GE1/0/2

Table 7 Command output

Field	Description
FEC	Forwarding equivalence class: · IP address/mask—Classifies FECs by destination address. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC or static SRLSP FEC. This field displays a hyphen (-) if the LSP is a static transit LSP, static egress LSP, static transit CRLSP, or static egress CRLSP.
Protocol	Label distribution protocol: · LDP. · BGP. · RSVP. · Static. · StaticCR—Static CRLSP. · Local—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · RSVP-P2MP—P2MP CRLSP established by RSVP-TE.
BkLabel	Outgoing label of the backup LSP.
BkInterface	Outgoing interface of the backup LSP.

‌

# Display detailed information about all LSPs.

<Sysname> display mpls lsp verbose

Destination : 56.10.10.2

FEC : 56.10.10.2/32

Protocol : LDP

LSR Type : Egress

Service : Statistics

Create Time : 2021-07-05 11:44:06

Last Chg Time: 2021-07-05 11:44:06

In-Label : 1024

State : Active

Inbound Statistics:

Octets : 13000

Packets : 100

Errors : 0

Discards : 0

Destination : 56.10.10.4

FEC : 56.10.10.2/32

Protocol : LDP

LSR Type : Transit

Service : Statistics

Create Time : 2021-07-05 11:44:06

Last Chg Time: 2021-07-05 11:44:06

In-Label : 1026

Inbound Statistics:

Octets : 10600

Packets : 100

Errors : 0

Discards : 0

Path ID : 0x40000000.1

State : Active

Out-Label : 1800

Nexthop : 10.1.1.2

Out-Interface: GE1/0/1

BkLabel : 1900

BkNexthop : 20.1.1.2

BkInterface : GE1/0/2

Outbound Statistics:

Octets : 12600

Packets : 100

Errors : 0

Discards : 0

Destination : 56.10.10.4

FEC : 56.10.10.2/32

Protocol : LDP

LSR Type : Ingress

Service : -

Create Time : 2021-07-05 11:44:06

Last Chg Time: 2021-07-05 11:44:06

NHLFE ID : 2000

State : Active

Out-Label : 1800

Nexthop : 10.1.1.2

Out-Interface: GE1/0/1

Table 8 Command output

Field	Description
Destination	LSP destination address.
FEC	Forwarding equivalence class: · IP address/mask—Classifies FECs by destination address. · IP address—Classifies FECs by next hop. · IP address/Out Label—Classifies FECs by next hop and outgoing label. · IP address/Color—Classifies FECs by destination address and color attribute. · NID—Classifies FECs by NID. · Ingress LSR ID/Tunnel ID/LSP ID—RSVP TE FEC. · IP address/mask (Flex-Algo ID)—Classifies FECs by destination address and flexible algorithm ID. · IP address/private data/VPN instance index—Classifies FECs by IP address, private data, and VPN instance index. This field displays a hyphen (-) if the LSP is a static transit LSP, static egress LSP, static transit CRLSP, or static egress CRLSP.
Protocol	Label distribution protocol: · LDP. · BGP (instance-name)—The instance-name specifies a BGP instance name. The value of default represents the default BGP instance. · RSVP. · Static. · StaticCR—Static CRLSP. · Local—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · RSVP-P2MP—P2MP CRLSP established by RSVP-TE.
LSR Type	LSR type: · Ingress—The current LSR is the ingress node of the LSP. · Transit—The current LSR is a transit node of the LSP. · Egress—The current LSR is the egress node of the LSP.
Service	Service deployed on the LSP. The service can only be Statistics, which indicates the MPLS forwarding statistics feature.
Create Time	Time when the LSP generated.
Last Chg Time	Time when the LSP changed most recently.
Path ID	Forwarding path. The value is in the format of 0xnn.m. The nn represents the NHLFE group ID of the outer LSPs that carry the current LSP, and m represents the sequence number of the equivalence path.
NHLFE ID	NHLFE entry index.
State	LSP state: · Active—The LSP is in use. · Inactive—The LSP is idle.
Inbound Statistics	MPLS forwarding statistics in inbound direction: · Octets—Number of received octets. · Packets—Number of received packets. · Errors—Number of received error packets. · Discards—Number of discarded packets.
BkLabel	Outgoing label of the backup LSP.
BkNexthop	Next hop address of the backup LSP.
BkInterface	Outgoing interface of the backup LSP.
SBKOut interface	Outgoing interface of the second backup LSP.
BkLsIndex	Label stack index of the backup LSP.
Outbound Statistics	MPLS forwarding statistics in outbound direction: · Octets—Number of sent octets. · Packets—Number of sent packets. · Errors—Number of error packets. · Discards—Number of discarded packets.

Related commands

display mpls lsp statistics

Use display mpls lsp statistics to display LSP statistics.

Syntax

display mpls lsp statistics [ ipv6 ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv6: Displays IPv6 LSP statistics. If you do not specify this keyword, the command displays IPv4 LSP statistics.

Examples

# Display IPv4 LSP statistics.

<Sysname> display mpls lsp statistics

LSP Type Ingress/Transit/Egress Active

Static LSP 0/0/0 0/0/0

Static CRLSP 0/0/0 0/0/0

LDP LSP 2/2/1 2/2/1

RSVP CRLSP 0/0/0 0/0/0

BGP LSP 0/0/0 0/0/0

Local LSP 2/0/0 2/0/0

ISIS LSP 0/0/0 0/0/0

OSPF LSP 0/0/0 0/0/0

SR LSP 0/0/0 0/0/0

SR Policy LSP 0/0/0 0/0/0

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

Total 4/2/1 4/2/1

# Display IPv6 LSP statistics.

<Sysname> display mpls lsp statistics ipv6

LSP Type Ingress/Transit/Egress Active

Static LSP 0/0/0 0/0/0

Static CRLSP 0/0/0 0/0/0

LDP LSP 6/6/2 6/6/2

RSVP CRLSP 0/0/0 0/0/0

BGP LSP 0/0/0 0/0/0

Local LSP 2/0/0 2/0/0

ISIS LSP 0/0/0 0/0/0

OSPF LSP 0/0/0 0/0/0

SR LSP 0/0/0 0/0/0

SR Policy LSP 0/0/0 0/0/0

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

Total 8/6/2 8/6/2

Table 9 Command output

Field	Description
LSP Type	LSP types: · Static LSP. · Static CRLSP—Static CRLSP. · LDP LSP. · Local LSP—LSP to a direct next hop, or LSP that uses a local MPLS TE tunnel interface or tunnel bundle interface as the LSP head. · RSVP CRLSP. · BGP LSP. · (Not supported.) IS-IS. · (Not supported.) OSPF. · (Not supported.) SR LSP—Dynamic SRLSPs established by SR and stateful PCE. · (Not supported.) SR Policy LSP—SRLSP established by SR-MPLS TE policies.
Total	Total number of LSPs.
Ingress	Number of LSPs that take the local device as the ingress node.
Transit	Number of LSPs that take the local device as a transit node.
Egress	Number of LSPs that take the local device as the egress node.
Active	Number of active LSPs of a type.

display mpls multicast-lsp protocol mldp p2mp

Use display mpls multicast-lsp protocol mldp p2mp to display information about P2MP LSPs signaled by using mLDP.

Syntax

display mpls multicast-lsp protocol mldp p2mp [ root-ip ip-address { lsp-id lsp-id | opaque-value opaque-value } ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

root-ip ip-address: Specifies the root IP address of the P2MP LSPs to be displayed. If you do not specify this option, the command displays information about all P2MP LSPs signaled by using mLDP.

lsp-id lsp-id: Specifies the LSP ID of the P2MP LSPs to be displayed. The value range for the lsp-id argument is 0 to 4294967295.

opaque-value opaque-value: Specifies the opaque value of the P2MP LSPs to be displayed. The opaque-value argument is a hexadecimal string of 1 to 255 characters.

Examples

# Display information about all mLDP-signaled P2MP LSPs.

<Sysname> display mpls multicast-lsp protocol mldp p2mp

Root IP : 1.1.1.1

Opaque value : 01000400000001

Tunnel ID : 1

Protocol : mLDP

LSR type : Ingress

NHLFE ID : 2000

State : Active

Out label : 1800

Nexthop : 10.1.1.2

Out interface: GE1/0/1

Root IP : 1.1.1.9

Opaque value : 010004e4000000

Tunnel ID : 1

Protocol : mLDP

LSR type : Transit

In label : 1279

Path ID : 0x250000002.1

State : Active

Out label : 1279

Nexthop : 20.1.1.2

Out interface: GE1/0/2

Table 10 Command output

Field	Description
Root IP	IP address of the root node of the mLDP P2MP LSPs.
Opaque value	Original opaque value in the mLDP protocol packet.
Tunnel ID	ID of the mLDP P2MP tunnel.
Protocol	Signaling protocol. The value of this field is mLDP, which indicates that the LSP is a P2MP LSP signaled by using mLDP.
LSR type	LSR type: · Ingress—Ingress node. · Transit—Transit node. · Egress—Egress node. · Bud—Both transit and egress nodes.
In label	Incoming label.
Path ID	Forwarding path. The value is in the format of 0xnn.m. nn represents the NHLFE group ID of the outer LSPs that carry the current LSP, and m represents the sequence number of the equivalence path.
NHLFE ID	NHLFE entry index.
State	LSP state: · Active. · Inactive.
Out label	Outgoing label.
Nexthop	Next hop address.
Out interface	Outgoing interface.

‌

Related commands

display mpls multicast-lsp statistics p2mp

Use display mpls multicast-lsp statistics p2mp to display P2MP LSP statistics.

Syntax

display mpls multicast-lsp statistics p2mp

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display P2MP LSP statistics.

<Sysname> display mpls multicast-lsp statistics p2mp

LSP type Ingress/Transit/Egress/Bud Active

mLDP LSP 1/0/0/0 1/0/0/0

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

Total 1/0/0/0 1/0/0/0

Table 11 Command output

Field	Description
LSP Type	LSP type. The value of this field is mLDP, which indicates that the LSP is signaled by using mLDP.
Total	Total number of LSPs.
Ingress	Number of LSPs that use the local device as the ingress node.
Transit	Number of LSPs that use the local device as a transit node.
Egress	Number of LSPs that use the local device as the egress node.
Bud	Number of LSPs that use the local device as both transit and egress nodes.
Active	Total number of active LSPs.

‌

Related commands

display mpls lsp statistics

display mpls nib

Use display mpls nib to display MPLS Nexthop Information Base (NIB) information.

Syntax

display mpls nib [ nib-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nib-id: Specifies a next hop ID in the range of 1 to FFFFFFFFFFFFFFFE. If you do not specify a next hop, this command displays information about all MPLS next hops.

Examples

# Display information about all MPLS next hops.

<Sysname> display mpls nib

NIB ID: 0x40000000

Users: 1

Status: Active

ECMP number: 1

Outgoing NHLFE ID: 1024

Backup outgoing NHLFE ID: 1027

Table 12 Command output

Field	Description
NIB ID	ID of the next hop.
Users	Number of ILM entries that use this next hop.
Status	Next hop status: · Active—The next hop is active. · Dummy—The next hop is inactive.
ECMP number	Number of equal-cost NHLFE entries.
Outgoing NHLFE ID	ID of the NHLFE entry to which the next hop corresponds.
Backup outgoing NHLFE ID	ID of the backup NHLFE entry.

display mpls nid

Use display mpls nid to display usage information for NIDs.

Syntax

display mpls nid [ nid-value1 [ to nid-value2 ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

nid-value1: Specifies an NID in the range of 0 to 65535. If used with the nid-value2 argument, the nid-value1 argument represents the start NID of an NID range.

to nid-value2: Specifies the end NID of the NID range. The value range for the end NID is 0 to 65535. If you specify an NID range by using the nid-value1 argument and the to nid-value2 option, this command displays usage information for the specified range of NIDs.

Usage guidelines

NIDs are 32-bit binary numbers. They include fixed NIDs and dynamic NIDs.

· Fixed NIDs—Generated for tunnel interfaces or tunnel bundle interfaces. The highest four bits are a value other than 0000.

· Dynamic NIDs—NIDs except fixed NIDs. The highest four bits are 0s.

This command displays usage information only for dynamic NIDs.

If you do not specify any parameters, this command displays usage information for all dynamic NIDs.

Examples

# Display usage information for dynamic NIDs 1028 through 1500.

<Sysname> display mpls nid 1028 to 1500

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

1028 :...$.... ........ ........ ........ ........ ........ ........ ........

1092 :........ ........ ........ ........ ........ ........ ........ ........

1156 :........ ........ ........ ........ ........ ........ ........ ........

1220 :........ ........ ........ ........ ........ ........ ........ ........

1284 :........ ........ ........ ........ ........ ........ ........ ........

1348 :........ ........ ........ ........ ........ ........ ........ ........

1412 :........ ........ ........ ........ ........ ........ ........ ........

1476 :........ ........ ........ .

display mpls summary

Use display mpls summary to display MPLS summary information.

Syntax

display mpls summary

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display MPLS summary information.

<Sysname> display mpls summary

MPLS LSR ID : 1.1.1.1

Egress Label Type: Implicit-null

Labels:

Range Idle Owner

16-14999 14984 Static

StaticCR

StaticPW

Static SR Adj

15000-15999(default SRLB) 1000 Default SR Adj

16000-55999(default SRGB, reusable) 40000 Default SR Prefix

25000-27000(SRGB) 2001 ISIS-1 SR Prefix

56000-88888 32889 LDP

RSVP

BGP

BGP SR EPE

OSPF SR Adj

ISIS SR Adj

VPWS

VPLS

100000-200000(global SRGB, reusable) 100001 SR Prefix

210000-220000(global SRLB) 10001 SR Adj

Protocols:

Type State

LDP Normal

RSVP Normal

BGP(default) Normal

Static Normal

CCC Normal

StaticCR Normal

Local Normal

BGP(xy) Normal

BGP(abc) Normal

mLDP Normal

Table 13 Command output

Field	Description
Egress Label Type	Label type that the egress node assigns to the penultimate hop: · Implicit-null. · Explicit-null. · Non-null.
Labels	Label information.
Range	Label range. · If labels within the label range can be reused, this field displays (reusable) behind the label range. · If the default label range is used, this field displays (default) behind the label range. · If the configured global label range is used, this field displays (global) behind the label range. · If the label range is the SRGB range, this field displays (SRGB) behind the label range. · If the label range is the SRLB range, this field displays (SRLB) behind the label range.
Idle	Number of idle labels in the label range.
Owner	Label range owner. · LDP. · BGP. · RSVP. · Static —Static LSP. · StaticCR—Static CRLSP. · StaticPW—Static PW. · Static SR Adj—Static SR adjacency SID. · Default SR Adj—Default SR adjacency SID. · SR Adj—Configured global SR adjacency SID. · Default SR Prefix—Default SR prefix SID. · SR Prefix—Configured global SR prefix SID. · OSPF SR Adj—SR adjacency SID automatically allocated to OSPF. · ISIS SR Adj—SR adjacency SID automatically allocated to IS-IS. · ISIS-1 SR Prefix—SR prefix SID of IS-IS process 1. · OSPF-1 SR Prefix—SR prefix SID of OSPF process 1. · VPWS. · VPLS. · BGP SR EPE—BGP PeerNode SID, PeerAdj SID, or PeerSet SID. · VRF—Label range specified for all VPN instances.
Protocols	Label distribution protocols that generated LSPs and their running states.
Type	Protocol type: · LDP. · mLDP. · BGP (instance-name). The instance-name specifies a BGP instance name. The value of default represents the default BGP instance. · RSVP. · Static—Static LSP. · StaticCR—Static CRLSP. · TE. · CCC. · ISIS. · OSPF.
State	Label distribution protocol running state: · Normal—The protocol is in normal state. · Recover—The protocol is in the GR process.

ftn enable

Use ftn enable to enable the device to maintain FEC-to-NHLFE map (FTN) entries in the RIB.

Use undo ftn enable to disable the device to maintain FTN entries in the RIB.

Syntax

ftn enable

undo ftn enable

Default

The device does not maintain FTN entries in the RIB.

Views

RIB IPv4 address family view

Predefined user roles

network-admin

Usage guidelines

FTN entries are FIB entries that contain outgoing labels. When an LSR receives an unlabeled packet, it searches the corresponding FTN entry based on the destination IP address. If a match is found, the LSR adds the outgoing label in the FTN entry to the packet and forwards the labeled packet.

For the device to collect FTN forwarding statistics, you must execute the ftn enable command first, and then use the mpls-forwarding statistics prefix-list command to enable FTN forwarding statistics.

Examples

# Enable the device to maintain FTN entries in the RIB.

<Sysname> system-view

[Sysname] rib

[system-rib] address-family ipv4

[system-rib-ipv4] ftn enable

Related commands

mpls-forwarding statistics prefix-list

mpls bandwidth-based-sharing

Use mpls bandwidth-based-sharing to enable bandwidth-based load sharing on an MPLS transit node.

Use undo mpls bandwidth-based-sharing to disable bandwidth-based load sharing on an MPLS transit node.

Syntax

mpls bandwidth-based-sharing

undo mpls bandwidth-based-sharing

Default

Bandwidth-based load sharing is disabled on an MPLS transit node.

Views

System view

Predefined user roles

network-admin

Usage guidelines

If equal-cost LDP LSPs exist on a transit node, the node evenly transmits MPLS packets through the LSPs. After you enable this feature, MPLS packets are transmitted through the LSPs in the proportion calculated based on the bandwidth of the egress interfaces.

Examples

# Enable bandwidth-based load sharing on an MPLS transit node.

<Sysname> system-view

[Sysname] mpls bandwidth-based-sharing

mpls enable

Use mpls enable to enable MPLS on an interface.

Use undo mpls enable to disable MPLS on an interface.

Syntax

mpls enable

undo mpls enable

Default

MPLS is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Examples

# Enable MPLS on GigabitEthernet 1/0/1.

<Sysname> System-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mpls enable

Related commands

display mpls interface

mpls forwarding split-horizon

Use mpls forwarding split-horizon to enable split horizon for MPLS forwarding.

Use undo mpls forwarding split-horizon to disable split horizon for MPLS forwarding.

Syntax

mpls forwarding split-horizon

undo mpls forwarding split-horizon

Default

Split horizon is disabled for MPLS forwarding.

Views

System view

Predefined user roles

network-admin

Examples

# Enable split horizon for MPLS forwarding.

<Sysname> system-view

[Sysname] mpls forwarding split-horizon

mpls label advertise

Use mpls label advertise to specify the type of label the egress node will advertise to the penultimate hop.

Use undo mpls label advertise to restore the default.

Syntax

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

undo mpls label advertise

Default

As egress, the device advertises an implicit null label to the penultimate hop.

Views

System view

Predefined user roles

network-admin

Parameters

explicit-null: Specifies the egress node to advertise an explicit null label of 0 or 2 to the penultimate hop. The explicit null label value is 0 in IPv4 networks and 2 in IPv6 networks.

implicit-null: Specifies the egress node to advertise an implicit null label of 3 to the penultimate hop.

non-null: Specifies the egress node to advertise a non-null label to the penultimate hop.

Usage guidelines

As a best practice, configure the egress node to advertise an implicit null label to the penultimate hop if the penultimate hop supports PHP.

If you want to simplify packet forwarding on egress but keep labels to determine QoS policies, configure the egress node to advertise an explicit null label to the penultimate hop.

Use non-null labels only in particular scenarios. For example, when OAM is configured on the egress node, the egress node can get the OAM function entity status only through non-null labels.

As a penultimate hop, the device accepts the implicit null label, explicit null label, or non-null label advertised by the egress node.

For LDP LSPs, the mpls label advertise command triggers LDP to delete the LSPs established before the command is executed and re-establishes new LSPs.

For BGP LSPs, the mpls label advertise command takes effect only on the BGP LSPs established after the command is executed. To apply the new setting to BGP LSPs established before the command is executed, delete the routes corresponding to the BGP LSPs, and then redistribute the routes.

Examples

# Configure the egress node to advertise an implicit null label to the penultimate hop.

<Sysname> system-view

[Sysname] mpls label advertise implicit-null

Related commands

reset mpls ldp

mpls label range

Use mpls label range to set the value range for dynamic labels that the device can allocate.

Use undo mpls label range to restore the default.

Syntax

mpls label range minimum maximum

undo mpls label range

Default

The value range for dynamic labels that the device can allocate is not configured.

Views

System view

Predefined user roles

network-admin

Parameters

minimum: Specifies the minimum label value that the device can allocate. The value range for this argument is 15000 to 1048574.

maximum: Specifies the maximum label value that the device can allocate. The value range for this argument is 15001 to 1048575.

Usage guidelines

This command sets the value range in which label distribution protocols can dynamically allocate labels.

This command does not take effect on static LSP labels, static CRLSP labels, or static PW labels. For more information about static LSP labels, see "Configuring a static LSP." For more information about static CRLSP labels, see "Configuring a static CRLSP." For more information about static PW labels, see "Configuring VPLS" and "Configuring MPLS L2VPN."

If you configure this command multiple times, the most recent configuration takes effect.

Examples

# Set the value range to 10000 to 15000 for dynamic labels that the device can allocate.

<Sysname> system-view

[Sysname] mpls label range 10000 15000

mpls label-block

Use mpls label-block to configure an MPLS label block.

Use undo mpls label-block to delete an MPLS label block.

Syntax

mpls label-block name name range minimum-label maximum-label

undo mpls label-block name name

Default

No MPLS label block is configured.

Views

System view

Predefined user roles

network-admin

Parameters

name name: Specifies a name for the MPLS label block, a case-sensitive string of 1 to 127 characters.

range: Specifies the range of labels of the MPLS label block.

minimum-label: Minimum label value of the MPLS label block. The value range for this argument is 15000 to 1048574.

maximum-label: Maximum label value of the MPLS label block. The value range for this argument is 15000 to 1048574.

Usage guidelines

An MPLS label block configured by using this command can be used by the SRLB and SRGBs, so IGP and BGP use the labels within the MPLS label block.

If an MPLS label block has been used, you cannot delete the MPLS label block.

If you configure MPLS label blocks with the same name multiple times, the most recent configuration takes effect.

MPLS label blocks with different names cannot contain overlapping label values.

Examples

# Configure an MPLS label block named srgb, and specify its label range as 10000 to 15000.

<Sysname> system-view

[Sysname] mpls label-block name srgb range 10000 15000

mpls label-usage threshold-alarm percent

Use mpls label-usage threshold-alarm percent to set alarm thresholds for MPLS label usage.

Use undo mpls label-usage threshold-alarm percent to restore the default.

Syntax

mpls label-usage threshold-alarm percent { dynamic | egress | egress6 | l3vpn | srgb | srlb |static | vpls | vpws } upper-limit upper-percent lower-limit lower-percent

undo mpls label-usage threshold-alarm percent { dynamic | egress | egress6 | l3vpn | srgb | srlb | static | vpls | vpws }

Default

The usage alarm upper threshold is 80% and lower threshold is 70% for all types of MPLS labels.

Views

System view

Predefined user roles

network-admin

Parameters

dynamic: Specifies dynamic allocated MPLS labels.

egress: Specifies egress MPLS labels (labels allocated to egress LSPs).

egress6: Specifies IPv6 egress MPLS labels (labels allocated to IPv6 egress LSPs).

l3vpn: Specifies L3VPN MPLS labels (labels allocated to MPLS L3VPN).

srgb: Specifies SRGB MPLS labels (labels allocated to SRGB).

srlb: Specifies SRLB MPLS labels (labels allocated to SRLB).

static: Specifies statically configured MPLS labels.

vpls: Specifies VPLS MPLS labels (labels allocated to VPLS).

vpws: Specifies VPWS MPLS labels (labels allocated to VPWS).

upper-limit upper-percent: Specifies the upper threshold for MPLS label usage, in the range of 1% to 99%.

lower-limit lower-percent: Specifies the lower threshold for MPLS label usage, in the range of 1% to 99%.

Usage guidelines

After SNMP notifications for MPLS label usage are enabled, the device generates a notification when MPLS label usage exceeds the upper threshold or drops below the lower threshold. To enable SNMP notifications for MPLS label usage, use the snmp-agent trap enable mpls-private label-threshold command.

The MPLS label usage upper threshold must be greater than the lower threshold.

Examples

# Set the usage alarm upper threshold to 90% and lower threshold to 80% for dynamic MPLS labels.

<Sysname> system-view

[Sysname] mpls label-usage threshold-alarm percent dynamic upper-limit 90 lower-limit 80

Related commands

snmp-agent trap enable mpls-private

mpls load-sharing mode

Use mpls load-sharing mode to configure an MPLS load sharing mode.

Use undo mpls load-sharing mode to restore the default.

Syntax

mpls load-sharing mode { per-flow { label | ip } | per-packet }

undo mpls load-sharing mode

Views

System view

Default

No MPLS load sharing mode is configured.

Predefined user roles

network-admin

Parameters

per-flow: Enables per-flow load sharing.

label: Enables per-flow load sharing based on labels.

ip: Enables per-flow load sharing based on IP information.

per-packet: Enables per-packet load sharing.

Usage guidelines

The device supports the following MPLS load sharing modes:

· Per-flow load sharing based on labels

¡ If the label stack in packets contains five or less MPLS labels:

- For MPLS packets carrying IP packets, the device performs load sharing based on the destination IP, source IP, destination port, source port, protocol number, and the ToS field in the IP packets.

- For MPLS packets carrying TCP and UDP packets, the device performs load sharing based on the destination IP, source IP, protocol number, and the ToS field in the IP packets.

- For MPLS packets carrying non-IP packets, the device performs load sharing based on all MPLS labels in the packets.

¡ If the label stack in packets contains more than five MPLS labels, the device performs load sharing based on the outmost five MPLS labels.

· Per-flow load sharing based on IP information

¡ If the label stack in packets contains five or less MPLS labels, the device performs load sharing based on the five tuples of packets.

¡ If the label stack in packets contains more than five MPLS labels, the device performs load sharing based on the outmost five MPLS labels.

· Per-packet load sharing—Uses a polling method to select a path for fowarding each packet in turn according to the packet arrival order.

Examples

# Enable per-flow load sharing based on labels.

<Sysname> system-view

[Sysname] mpls load-sharing mode per-flow label

Related commands

flow-label (MPLS L2VPN)

flow-label (VPLS)

mpls lsr-id

Use mpls lsr-id to configure an LSR ID for the local LSR.

Use undo mpls lsr-id to restore the default.

Syntax

mpls lsr-id lsr-id

undo mpls lsr-id

Default

An LSR has no LSR ID.

Views

System view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

As a best practice, use the address of a loopback interface on the LSR as the LSR ID.

If no LDP LSR ID is configured for the public network or a VPN instance, LDP uses the MPLS LSR ID configured by the mpls lsr-id command. If you modify the MPLS LSR ID, the LDP sessions in the public network or VPN instance will be re-established. To configure an LDP LSR ID for the public network or a VPN instance, use the lsr-id command in LDP view or LDP-VPN instance view.

Examples

# Configure the LSR ID as 3.3.3.3 for the local node.

<Sysname> system-view

[Sysname] mpls lsr-id 3.3.3.3

# Change the LSR ID to 4.4.4.4.

[Sysname] mpls lsr-id 4.4.4.4

All LDP sessions using the MPLS LSR ID will be reset. Continue? [Y/N]:Y

Related commands

lsr-id

mpls mtu

Use mpls mtu to set the MPLS MTU for an interface.

Use undo mpls mtu to restore the default.

Syntax

mpls mtu size

undo mpls mtu

Default

The MPLS MTU of an interface is not configured. Fragmentation for MPLS packets is based on the MTU set on the interface by the ip mtu command. If no MTU is set by the ip mtu command, the fragmentation is based on the MTU of the interface. The length of a fragment does not include that of the MPLS label. Thus, after an MPLS label is added into a fragment, the length of the MPLS fragment might exceed the interface MTU.

If the peer interface cannot receive packets larger than the IP MTU, set the MPLS MTU of the local interface to be smaller than the IP MTU to ensure normal packet forwarding.

Views

Interface view

Predefined user roles

network-admin

Parameters

size: Specifies the MPLS MTU of the interface, in the range of 46 to 65535 bytes.

Usage guidelines

This command is effective only when MPLS is enabled on the interface.

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

MPLS TE tunnel interfaces do not support this command.

Examples

# Set the MPLS MTU of GigabitEthernet 1/0/1 to 1000 bytes.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mpls enable

[Sysname-GigabitEthernet1/0/1] mpls mtu 1000

Related commands

display mpls interface

mpls statistics

Use mpls statistics to enable MPLS label forwarding statistics for LSPs.

Use undo mpls statistics to disable MPLS label forwarding statistics for LSPs.

Syntax

mpls statistics { all | [ vpn-instance vpn-instance-name ] { ipv4 ipv4-address mask-length | ipv6 ipv6-address prefix-length } | static | te ingress-lsr-id tunnel-id }

undo mpls statistics { all | [ vpn-instance vpn-instance-name ] { ipv4 ipv4-address mask-length | ipv6 ipv6-address prefix-length } | static | te ingress-lsr-id tunnel-id }

Default

MPLS label forwarding statistics are disabled for all LSPs.

Views

System view

Predefined user roles

network-admin

Parameters

all: Specifies all LSPs.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command enables MPLS forwarding statistics for public LSPs.

ipv4 ipv4-address mask-length: Specifies the IPv4 LSP for an FEC specified by an IPv4 address and a mask length. The mask length is in the range of 0 to 32.

ipv6 ipv6-address prefix-length: Specifies the BGP-IPv6 LSP for an FEC specified by an IPv6 address and a prefix length. The prefix length is in the range of 0 to 128.

static: Specifies static LSPs and static CRLSPs.

te ingress-lsr-id tunnel-id: Specifies an RSVP-TE tunnel. The ingress-lsr-id represents the LSR ID of the ingress node of the tunnel. The tunnel-id argument represents the ID of the tunnel. The value range for the tunnel-id argument is 0 to 20479. If you specify this option, the device automatically sets the MPLS label forwarding statistics collection interval to 30 seconds.

Usage guidelines

MPLS label forwarding forwards a labeled packet based on its incoming label. MPLS label forwarding statistics is enabled by this command.

FTN forwarding adds a label to an unlabeled packet, and forwards the labeled packet. FTN forwarding statistics collection is enabled by the mpls-forwarding statistics prefix-list command in RIB IPv4 address family view.

To display MPLS label forwarding statistics for the specified LSPs by using the display mpls lsp verbose command, you must perform the following tasks:

· Use the mpls statistics command to enable the MPLS label forwarding statistics feature for the LSPs.

· Use the mpls statistics interval command to set the MPLS label forwarding statistics collection interval.

If you specify the te ingress-lsr-id tunnel-id option in the mpls statistics command, the MPLS label forwarding statistics collection interval is automatically set to 30 seconds. If you also execute the mpls statistics interval command, the interval set by the mpls statistics interval command takes effect.

The execution of the mpls statistics enable command on a PE enables MPLS label forwarding statistics for a VPN instance and for all LSPs in the VPN instance. For more information about enabling MPLS label forwarding statistics for a VPN instance, see the MPLS L3VPN configuration in MPLS Configuration Guide.

The undo mpls statistics all command cannot disable MPLS label forwarding statistics for a VPN instance or a protocol after the mpls statistics command is executed with the vpn-instance, ipv4, ipv6, static, or te keyword specified. To disable MPLS label forwarding statistics for the VPN instance or protocol, execute the undo mpls statistics command with the vpn-instance, ipv4, ipv6, static, or te keyword specified.

Examples

# Enable MPLS label forwarding statistics for the LSP destined for 2.2.2.2/32.

<Sysname> system-view

[Sysname] mpls statistics ipv4 2.2.2.2 32

Related commands

display mpls lsp verbose

mpls statistics interval

reset mpls statistics

mpls statistics interval

Use mpls statistics interval to set the MPLS label forwarding statistics collection interval.

Use undo mpls statistics interval to delete the MPLS label forwarding statistics collection interval.

Syntax

mpls statistics interval interval

undo mpls statistics interval

Default

The MPLS forwarding statistics collection interval is not set.

Views

System view

Predefined user roles

network-admin

Parameters

interval: Specifies the MPLS label forwarding statistics collection interval, in the range of 30 to 65535 seconds.

Usage guidelines

To display MPLS label forwarding statistics for the specified LSPs by using the display mpls lsp verbose command, you must perform the following tasks:

· Use the mpls statistics command to enable the MPLS label forwarding statistics feature for the LSPs.

· Use the mpls statistics interval command to set the MPLS label forwarding statistics collection interval.

Examples

# Set the MPLS label forwarding statistics collection interval to 30 seconds.

<Sysname> system-view

[Sysname] mpls statistics interval 30

Related commands

display ip vpn-instance mpls statistics

display mpls lsp verbose

mpls statistics

mpls statistics enable

reset ip vpn-instance mpls statistics

reset mpls statistics

mpls ttl expiration enable

Use mpls ttl expiration enable to enable sending MPLS TTL-expired messages.

Use undo mpls ttl expiration enable to disable sending MPLS TTL-expired messages.

Syntax

mpls ttl expiration enable

undo mpls ttl expiration enable

Default

The MPLS TTL-expired messages sending feature is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This command enables an LSR to generate an ICMP TTL-expired message upon receiving an MPLS packet with TTL being 1.

· If the MPLS packet has only one label, the LSR sends the ICMP TTL-expired message back to the source through IP routing.

· If the MPLS packet has multiple labels, the LSR forwards the ICMP TTL-expired message along the LSP of the MPLS packet to the egress node. Then, the egress node sends the message back to the source.

Examples

# Disable sending MPLS TTL-expired messages.

<Sysname> system-view

[Sysname] undo mpls ttl expiration enable

mpls ttl propagate

Use mpls ttl propagate to enable TTL propagation.

Use undo mpls ttl propagate to disable TTL propagation.

Syntax

mpls ttl propagate { public | vpn }

undo mpls ttl propagate { public | vpn }

Default

TTL propagation is enabled for public network packets and is disabled for VPN packets.

Views

System view

Predefined user roles

network-admin

Parameters

public: Specifies public network packets.

vpn: Specifies VPN packets.

Usage guidelines

When TTL propagation is enabled, MPLS performs the following operations:

· Copies the IP TTL to the label TTL for packets entering the MPLS network.

· Copies the label TTL to the IP TTL for packets leaving the MPLS network.

If you enable TTL propagation on both ingress and egress, the IP tracert facility can show the real path in the MPLS network.

When TTL propagation is disabled, MPLS performs the following operations:

· Sets the label TTL to 255 for packets entering the MPLS network.

· Pops the label for packets leaving the MPLS network, without copying the label TTL value to the IP TTL.

The IP tracert facility cannot show the real path in the MPLS network.

Within an MPLS network, TTL is always copied between the labels of an MPLS packet. The mpls ttl propagate command affects only the propagation between IP TTL and label TTL.

As a best practice, set the same TTL processing mode on all LSRs of an LSP.

To enable TTL propagation for a VPN, you must enable it on all PE devices in the VPN. This allows you to obtain the same traceroute result (hop count) from those PEs.

Examples

# Enable TTL propagation for VPN packets.

<Sysname> system-view

[Sysname] mpls ttl propagate vpn

mpls-forwarding statistics prefix-list

Use mpls-forwarding statistics prefix-list to enable FTN forwarding statistics for a destination network.

Use undo mpls-forwarding statistics prefix-list to disable FTN forwarding statistics for a destination network.

Syntax

mpls-forwarding statistics prefix-list prefix-list-name

undo mpls-forwarding statistics prefix-list prefix-list-name

Default

FTN forwarding statistics are disabled for all destination networks.

Views

RIB IPv4 address family view

Predefined user roles

network-admin

Parameter

prefix-list-name: Specifies an IPv4 address prefix list, a case-sensitive string of 1 to 63 characters. This command applies only to the destination networks that permitted by the prefix list.

Usage guidelines

FTN forwarding adds a label to an unlabeled packet, and forwards the labeled packet. FTN forwarding statistics collection is enabled by this command.

MPLS label forwarding forwards a labeled packet based on its incoming label. MPLS label forwarding statistics collection is enabled by the mpls statistics command.

Before executing this command, use the ftn enable command to enable the device to maintain FTN entries in the RIB.

Examples

# Enable FTN forwarding statistics for destination network 2.2.2.0/24.

<Sysname> system-view

[Sysname] ip prefix-list abc permit 2.2.2.0 24

[Sysname] rib

[system-rib] address-family ipv4

[system-rib-ipv4] ftn enable

[system-rib-ipv4] mpls-forwarding statistics prefix-list abc

Related commands

ftn enable

mpls statistics

mpls statistics interval

reset mpls statistics

Use reset mpls statistics to clear MPLS forwarding statistics for the specified LSPs.

Syntax

reset mpls statistics { all | [ vpn-instance vpn-instance-name ] { ipv4 ipv4-address mask-length | ipv6 ipv6-address prefix-length } | static | te ingress-lsr-id tunnel-id }

Views

User view

Predefined user roles

network-admin

Parameters

all: Specifies all LSPs.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command clears MPLS forwarding statistics for public LSPs.

ipv4 ipv4-address mask-length: Specifies the IPv4 LSP for an FEC specified by an IPv4 address and a mask length. The mask length is in the range of 0 to 32.

ipv6 ipv6-address prefix-length: Specifies the BGP-IPv6 LSP for an FEC specified by an IPv6 address and a prefix length. The prefix length is in the range of 0 to 128.

static: Specifies static LSPs and static CRLSPs.

te ingress-lsr-id tunnel-id: Specifies an RSVP-TE tunnel. The ingress-lsr-id argument represents the LSR ID of the ingress node of the tunnel. The tunnel-id argument represents the ID of the tunnel. The value range for the tunnel-id argument is 0 to 20479.

Examples

# Clear MPLS forwarding statistics for the LSP destined for 2.2.2.2/32.

<Sysname> reset mpls statistics ipv4 2.2.2.2 32

Related commands

display mpls lsp verbose

mpls statistics

mpls statistics interval

snmp-agent trap enable mpls

Use snmp-agent trap enable mpls to enable SNMP notifications for MPLS.

Use undo snmp-agent trap enable mpls to disable SNMP notifications for MPLS.

Syntax

snmp-agent trap enable mpls

undo snmp-agent trap enable mpls

Default

SNMP notifications for MPLS are disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

To report critical MPLS events to an NMS, enable SNMP notifications for MPLS. For MPLS event notifications to be sent correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see the network management and monitoring configuration guide for the device.

Examples

# Enable SNMP notifications for MPLS.

<Sysname> system-view

[Sysname] snmp-agent trap enable mpls

snmp-agent trap enable mpls-private

Use snmp-agent trap enable mpls-private to enable private SNMP notifications for MPLS.

Use undo snmp-agent trap enable mpls-private to disable private SNMP notifications for MPLS.

Syntax

snmp-agent trap enable mpls-private [ label-threshold | label-total | slsp-up-down | tunnel-to-vpn ] *

undo snmp-agent trap enable mpls-private [ label-threshold | label-total | slsp-up-down | tunnel-to-vpn ] *

Default

Private SNMP notifications for MPLS are disabled.

Views

System view

Predefined user roles

network-admin

Parameters

label-threshold: Sends a notification when MPLS label usage exceeds the upper threshold or drops below the lower threshold. To set the MPLS label usage upper and lower thresholds, use the mpls label-usage threshold-alarm percent command.

label-total: Sends a notification when MPLS label usage reaches 100% or drops from 100% to 95%.

slsp-up-down: Sends a notification when a static LSP goes up or down.

tunnel-to-vpn: Sends a notification when the recursive tunnel for a VPN instance changes.

Usage guidelines

This command enables generating SNMP notifications for MPLS events of label-threshold, label-total, slsp-up-down, and tunnel-to-vpn. These notifications are not defined in an RFC and are private MPLS notifications supported by Comware. For SNMP to output the private MPLS notifications correctly, you must also configure parameters for sending SNMP notifications. For more information about SNMP configuration, see Network Management and Monitoring Configuration Guide.

If you do not specify any parameters, this command enables or disables all private SNMP notifications for MPLS.

Examples

# Enable all private SNMP notifications for MPLS.

<Sysname> system-view

[Sysname] snmp-agent trap enable mpls-private

Related commands

snmp-agent trap enable mpls

10-MPLS Command Reference

Basic MPLS commands

mpls bandwidth-based-sharing

mpls forwarding split-horizon

mpls label-usage threshold-alarm percent

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