display mpls ldp

Function

The display mpls ldp command displays global LDP configurations.

Format

display mpls ldp [ all | verbose | all verbose ]

Parameters

Parameter	Description	Value
all	Displays all LDP information.	-
verbose	Displays detailed information about the LDP protocol and an LSR.	-

Parameter

Description

Value

all

Displays all LDP information.

verbose

Displays detailed information about the LDP protocol and an LSR.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
mpls-ldp	read

Usage Guidelines

Usage Scenario

After the configuration of some LDP functions, run the display mpls ldp command to view LDP configurations, including information about GR timers and label advertisement and management modes.

Prerequisites

MPLS and MPLS LDP have been enabled globally.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display global LDP configurations.

<HUAWEI> display mpls ldp
                           LDP Global Information
 ------------------------------------------------------------------------------
 Protocol Version        : V1            Neighbor Liveness     : 600 Sec
 Graceful Restart        : Off           FT Reconnect Timer    : 300 Sec
 MTU Signaling           : On            Recovery Timer        : 300 Sec
 Capability-Announcement : On            Longest-match         : Off
 mLDP P2MP Capability    : Off           mLDP MBB Capability   : Off
 mLDP MP2MP Capability   : Off           mLDP Recursive-fec    : 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   : 10 Sec        DU Re-advertise Flag  : Off
 DU Explicit Request     : Off           Request Retry Flag    : Off
 Label Distribution Mode : Ordered       
 Label Retention Mode    : Liberal(DU)/Conservative(DOD)
 Graceful-Delete         : Off           Graceful-Delete Timer : 5 Sec
 Igp-sync-delay Timer    : 10 Sec
 ------------------------------------------------------------------------------

**Table 1** Description of the **display mpls ldp** command output
Item	Description
LDP Global Information	Global LDP information.
LDP Instance Information	Information about LDP multi-instance.
Protocol Version	LDP protocol version.
Neighbor Liveness	Timeout period of the GR Neighbor-liveness timer.
Graceful Restart	Whether GR is enabled or disabled for LDP: On: GR is enabled. Off: GR is disabled.
FT Reconnect Timer	Timeout period of the GR Reconnect timer.
MTU Signaling	Whether MTU signaling is enabled: On: sends Label Mapping messages carrying a Huawei private MTU TLV. On(apply-tlv): sends Label Mapping message carrying an MTU TLV defined in relevant standards. Off: sends Label Mapping messages without MTU TLVs.
Recovery Timer	Timeout period of the GR Recovery timer.
Capability-Announcement	Status of the LDP dynamic advertisement function: On: LDP dynamic advertisement is enabled. Off: LDP dynamic advertisement is disabled.
Longest-match	Whether LDP to search for routes for establishing label switched paths (LSPs) based on the longest match rule is enabled: On: LDP to search for routes for establishing LSP based on the longest match rule is enabled. Off: LDP to search for routes for establishing LSP based on the longest match rule is disabled.
mLDP P2MP Capability	Whether P2MP LDP is enabled: On: P2MP LDP is enabled. Off: P2MP LDP is disabled.
mLDP MBB Capability	Whether the mLDP make-before-break capability is enabled: On: mLDP make-before-break is enabled. Off: mLDP make-before-break is disabled.
mLDP MP2MP Capability	Whether MP2MP LDP is enabled: On: MP2MP LDP is enabled. Off: MP2MP LDP is disabled.
mLDP Recursive-fec	Whether LDP extension for Inter-Area is enabled: On. Off.
Instance ID	ID of a VPN instance in the integer format.
Instance Status	Instance status: Active: The instance is in the Active state. Destroy: The instance is in the Destroy state. For example, after the undo mpls ldp command is used, the instance is in the Destroy state.
VPN-Instance	Name of a VPN instance. By default, the name is null.
LSR ID	LSR ID of an LDP instance.
Hop Count Limit	Hop count limit for loop detection.
Path Vector Limit	Path vector limit for loop detection.
Loop Detection	Loop detection status: On: Loop detection is supported. Off: Loop detection is not supported.
DU Re-advertise Timer	DU re-advertising timer.
DU Re-advertise Flag	DU re-advertising flag: On: Re-advertisement is enabled. Off: Re-advertisement is disabled.
DU Explicit Request	Status of sending an explicit request in a DU session: On: The session can send an explicit request. Off: The session cannot send an explicit request.
Request Retry Flag	Status of resending a label request: On: This function is enabled. Off: This function is disabled.
Label Distribution Mode	Label distribution mode: Ordered. Independent.
Label Retention Mode	Label retention mode: Liberal(DU): If the label advertisement mode is DU, label retention mode will be Liberal. Conservative(DOD): If the label advertisement mode is DOD, label retention mode will be Conservative.
Igp-sync-delay Timer	Value of the igp-sync-delay timer, in seconds.
Graceful-delete	Whether graceful deletion is enabled: On: Graceful deletion is enabled. Off: Graceful deletion is disabled.
Graceful-delete Timer	Value of the Graceful-delete timer, in seconds.