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Checklist for Checking the MPLS Layer

Problem

This checklist provides the steps and commands for checking the Multiprotocol Label Switching (MPLS) layer of the layered MPLS model. The checklist provides links to an overview of the MPLS layer and more detailed information about the commands used to investigate the problem.

Table 19 provides commands for checking the MPLS layer.

Solution

Table 19: Checklist for Checking the MPLS Layer

Tasks

Command or Action
Checking the MPLS Layer  
  1. Verify the LSP

show mpls lsp
show mpls lsp extensive
show mpls lsp name name
 show mpls lsp name name extensive

  1. Verify the LSP Route on the Transit Router

show route table mpls.0
  1. Verify the LSP Route on the Ingress Router

show route destination

  1. Verify MPLS Labels with the traceroute Command

traceroute hostname

  1. Verify MPLS Labels with the ping Command

On the egress router:
[edit]
edit interfaces lo0 unit number
 [edit interfaces lo0 unit number]
set family inet address 127.0.0.1/32
show
commit

On the ingress router:
ping mpls rsvp lsp-name detail

  1. Verify the MPLS Configuration

show configuration protocols mpls
show configuration interfaces
  1. Take Appropriate Action

The following sequence of commands addresses the specific problem described in this topic:

edit
edit protocols mpls

[edit protocols mpls]
show
activate interface so-0/0/3.0
show
commit
  1. Verify the LSP Again

show mpls lsp extensive
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