Monitoring MPLS Status and Configuration

Purpose

Display status and configuration information about MPLS.

Action

To display information about MPLS Status and configuration:

host1#show mpls
MPLS administratively enabled
  Current state is Config incomplete
  LSR ID is 10.2.2.2
  Re-optimization timer is 3600
  Label range 3000 ~ 4000
  retry forever at interval 30 during LSP setup if there is route
  retry forever at interval 30 during LSP setup if there is no route
Loop Detect enabled

Additional detail is shown when LDP is enabled:

LDP
  LSR ID is 80.0.0.2
  FEC Deaggregation is off
  Egress label: implicit-null
  Label distribution control mode: ordered control
  LDP session retry  0 times at interval 10
  LDP session hold time: 180
  LDP session keepalive interval: 20
  LDP targeted-hello hold time: 45
  LDP targeted-hello interval: 15
  Topology Driven LSP enabled 
  LSPs used for IP forwarding
      for host addresses only

Additional detail is shown when RSVP-TE is enabled:

RSVP is enabled
  LSRID 10.1.1.1
  Re-optimization timer is 3600
  Tunnel retry forever at interval 5 if route is available
  Tunnel retry forever at interval 5 if no route is available
  Refresh reduction is OFF
  Message bundling is OFF
  Egress label is non-null
  Hellos are on with an interval of 10000 and miss limit of 4
  Graceful restart is ON
    Restart time 60000 milliseconds
    Recovery time 120000 milliseconds

Meaning

Table 72 lists the show mpls command output fields.

Table 72: show mpls Output Fields

Field Name

Field Description

MPLS

Status of MPLS, administratively enabled or disabled, and configuration status

LSR ID

IP address of label-switched router

Re-optimization timer

Frequency at which LSPs are checked for better paths

Label range

Range of platform label space

retry

Retry behavior to be performed during LSP setup

Loop Detect

Status of loop detection, enabled or disabled

LDP

This field and the following fields are displayed only when LDP is enabled.

LSR ID

IP address of label-switched router

FEC Deaggregation

State of FEC deaggregation, on or off

Egress label

Type of label advertised for the LSR that is the egress router for the prefix, explicit-null or a non-null label

Label distribution control mode

Label distribution control mode used by LDP for label distribution, independent control or ordered control

LDP session retry

Interval in seconds between attempts to set up an MPLS LDP session

LDP session hold time

Period in seconds for which an LSR maintains the session with its LDP peer without receipt of any LDP message from that peer

LDP session keepalive interval

Interval at which LDP sends session keepalive messages, in seconds

LDP targeted hello hold time

LDP targeted-hello hold time, in seconds

LDP targeted-hello interval

LDP targeted-hello interval, in seconds

Topology Driven LSP

Status of topology-driven LSP, enabled or disabled

LSPs used for IP forwarding

LSPs are placed in the IP routing table for forwarding plain IP traffic; displayed only when the mpls ldp ip-forwarding command has been configured. Indicates whether the LSPs that are used for IP forwarding are host only, subject to a specified access list, or subject to a specified prefix list.

RSVP is enabled

This field and the following fields are displayed only when RSVP-TE is enabled.

LSRID

IP address of label-switched router

Re-optimization timer

Frequency at which LSPs are checked for better paths

Tunnel retry

Retry behavior to be performed during LSP setup

Refresh reduction

State of RSVP-TE summary refresh reduction, OFF or ON

Message bundling

State of RSVP-TE summary refresh message bundling, OFF or ON

Egress label

Type of label advertised for the LSR that is the egress router for the prefix, explicit-null or a non-null label

Hellos

State of RSVP-TE hello feature, including the hello refresh interval and hello miss limit

Graceful restart

State of RSVP-TE graceful restart, OFF or ON

helper mode

Graceful restart helper mode is enabled when this field is displayed

Restart time

Graceful restart time, in milliseconds

Recovery time

Graceful restart recovery time, in milliseconds

Related Documentation