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Checklist for Verifying the IS-IS Protocol and Adjacencies

Purpose

Table 29 provides links and commands for verifying the IS-IS protocol and adjacencies.

Action

Table 29: Checklist for Verifying the IS-IS Protocol and Adjacencies

Tasks

Command or Action
Verify 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
Display the Status of IS-IS Adjacencies
  1. Verify 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 Protocol Data Unit Header

show isis database extensive
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