Deployment Guide
Usage Information
Use this command to conrm that the neighbor adjacencies are operating correctly. If you suspect that they are
not, you can verify the specied area addresses of the routers by using the show isis neighbors command.
The following describes the show isis neighbors command shown in the following example.
Field Description
System Id The value that identies a system in an area.
Interface The interface, slot, and port in which the router was discovered.
State The value providing status about the adjacency state. The range is Up and Init.
Type This value displays the adjacency type (Layer 2, Layer 2 or both).
Priority IS-IS priority the neighbor advertises. The neighbor with highest priority becomes the
designated router for the interface.
Uptime Displays the interfaces uptime.
Circuit Id The neighbor’s interpretation of the designated router for the interface.
Example
The bold sections below identify that Multi-Topology IS-IS is enabled.
Dell#show isis neighbors
System Id Interface State Type Priority Uptime Circuit Id
TEST Gi 7/1 Up L1L2
(M) 127 09:28:01 TEST.02
!
Dell#show isis neighbors detail
System Id Interface State Type Priority Uptime Circuit Id
TEST Gi 7/1 Up L1L2
(M) 127 09:28:04 TEST.02 Area Address(es):
49.0000.0001
IP Address(es): 25.1.1.3*
MAC Address: 0000.0000.0000
Hold Time: 28
Link Local Address: fe80::201:e8ff:fe00:492c
Topology: IPv4 IPv6 , Common (IPv4 IPv6 )
Adjacency being used for MTs: IPv4 IPv6
Dell#
show isis protocol
Display IS-IS routing information.
Syntax
show isis protocol
Command Modes
• EXEC
• EXEC Privilege
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
798 Intermediate System to Intermediate System (IS-IS)