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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

Aditional detail shown when RSVP-TE graceful restart helper mode is enabled:
```
RSVP is enabled
...
  Graceful restart is ON (helper mode)
```

Meaning

Table 43 lists the show mpls command output fields.

Table 43: 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

Monitoring MPLS Status and Configuration

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