display mpls ldp

Function

The display mpls ldp command displays information about the LDP protocol and label switching routers (LSRs).

Format

display mpls ldp [ all ] [ verbose ]

Parameters

Parameter	Description	Value
all	Displays information about the global LDP protocol and the LDP protocols that are configured on private networks.	-
verbose	Displays detailed information about the LDP protocol and LSRs.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

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

MPLS has been enabled globally using the mpls command, and MPLS LDP has been enabled globally using the mpls ldp command in the system view.

Example

# Display information about the LDP protocol and LSRs.

<sysname> 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    : On           mLDP MBB Capability  : On

 mLDP MP2MP Capability   : Off

                          LDP Instance Information

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

 Instance ID             : 0            VPN-Instance         :

 Instance Status         : Active       LSR ID               : 4.4.4.4

 Loop Detection          : Off          Path Vector Limit    : 32

 Label Distribution Mode : Ordered

 Label Retention Mode    : Liberal(DU)/Conservative(DOD)

 Instance Deleting State : No           Instance Reseting State : No

 Graceful-Delete         : Off          Graceful-Delete Timer   : 5 Sec

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

**Table 1** Description of the **display mpls ldp** command output
Item	Description
LDP Global Information	Global LDP information
Protocol Version	LDP protocol version
Neighbor Liveness	Timeout period (in seconds) of the GR Neighbor-liveness timer The default value is 600 seconds, it can be configured using the graceful-restart timer neighbor-liveness command.
Graceful Restart	Whether GR is enabled: On: GR is enabled. Off: GR is disabled. This function is disabled by default. It can be enabled using the graceful-restart (MPLS-LDP view) command.
FT Reconnect Timer	Timeout period (in seconds) of the GR Reconnect timer
MTU Signaling	Whether the maximum transmission unit (MTU) signaling is enabled: On: The private MTU TLV is sent. Off: The MTU TLV is not supported. On(apply-tlv): The MTU TLV is sent in compliance with RFC 3988.
Recovery Timer	Timeout period (in seconds) of the GR Recovery timer The default value is 300 seconds, it can be configured using the graceful-restart timer recovery command.
Capability-Announcement	Status of the LDP dynamic advertisement function: On: LDP dynamic advertisement is enabled. Off: LDP dynamic advertisement is disabled.
Longest-match	Status of LDP extension for an inter-area LSP: On: The LDP extension is enabled for the inter-area LSP. Off: The LDP extension is disabled for the inter-area LSP. This function is disabled by default. It can be enabled using the longest-match command.
mLDP P2MP Capability	Whether multipoint extensions for LDP (mLDP) point-to-multipoint (P2MP) is globally enabled: On: mLDP P2MP is enabled globally. Off: mLDP P2MP is disabled globally.
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 multipoint extensions for LDP (mLDP) multipoint-to-multipoint (MP2MP) is globally enabled: On: mLDP MP2MP is enabled globally. Off: mLDP MP2MP is disabled globally.
LDP Instance Information	Information about an LDP multi-instance
Instance ID	ID of a VPN instance in the integer format Value 0 indicates a public instance.
VPN-Instance	Name of a VPN instance The name of the public instance is "null."
Instance Status	Status of an instance: Active: The instance is in the Active state. NotInService: The instance is in the NotInService state temporarily due to some operations. For example, after the reset mpls ldp or graceful-restart command is used, the instance is unavailable temporarily. 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.
LSR ID	LSR ID of an LDP instance The default LSR ID of an LDP instance is the LSR ID of MPLS. It can be configured using the lsr-id command in the view of a specified instance.
Loop Detection	Loop detection status: On: Loop detection is enabled. Off: Loop detection is disabled.
Path Vector Limit	Path vector limit for loop detection
Label Distribution Mode	Label distribution mode: Ordered Independent
Label Retention Mode: Liberal(DU)/Conservative(DOD)	If label advertisement mode is DU, label retention mode will be Liberal. If label advertisement mode is DOD, label retention mode will be Conservative.
Instance Deleting State	Deletion status of an instance: Yes: The instance is being deleted. No: The instance is not being deleted.
Instance Reseting State	Resetting status of an instance: Yes: The instance is being reset. No: The instance is not being reset.
Graceful-Delete	Whether graceful deletion is enabled: On: Graceful deletion is enabled. Off: Graceful deletion is disabled. This function is disabled by default. It can be enabled using graceful-delete command in the view of a specified instance.
Graceful-Delete Timer	Value of the Graceful-delete timer, in seconds The default value is 5 seconds, it can be configured using the graceful-delete timer command in the view of a specified instance.