Checklist for Verifying the IS-IS Protocol and Adjacencies

Purpose

Table 25 provides links and commands for verifying the IS-IS protocol and adjacencies.

Action

 

Table 25: Checklist for Verifying the IS-IS Protocol and Adjacencies

Tasks

Command or Action

Verifying the IS-IS Configuration on a Router in a Network
  1. Check the Configuration of a Level 1/Level 2 Router

[edit protocols isis] show
[edit protocols isis] run show isis interface
[edit] edit interfaces
[edit interfaces] show

  1. Check the Configuration of a Level 1 Router

[edit protocols isis] show
[edit protocols isis] run show isis interface
[edit] edit interfaces
[edit interfaces] show

  1. Check the Configuration of a Level 2 Router

[edit protocols isis] show
[edit protocols isis] run show isis interface
[edit] edit interfaces
[edit interfaces] show

Displaying the Status of IS-IS Adjacencies
  1. Verifying Adjacent Routers

show isis adjacency

  1. Examine a Route

show route destination-prefix
show route detail destination-prefix
show isis route destination-prefix

  1. Examine the Forwarding Table

show route forwarding-table destination destination-prefix

  1. Examine the Link-State Database

show isis database

  1. Examine a Link-State PDU Header

show isis database extensive