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Usage
Information
Use this command to confirm that the neighbor adjacencies are operating correctly. If you suspect that
they are not, you can verify the specified 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 identifies 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. This command displays only one IP
address per line.
DellEMC# show isis neighbors
System Id Interface State Type Priority Uptime Circuit Id
TEST Tf 1/7 Up L1L2(M) 127 09:28:01 TEST.02
!
DellEMC#show isis neighbors detail
System Id Interface State Type Priority Uptime Circuit Id
TEST Tf 1/7 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
DellEMC#
show isis protocol
Display IS-IS routing information.
Syntax
show isis [vrf vrf-name] protocol
Parameters
vrf vrf-name (OPTIONAL) Enter the keyword vrf followed by the name of the VRF to display
IS-IS routing information corresponding to that VRF.
Command Modes
● EXEC
● EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.12(1.0) Introduced on the S5048F–ON.
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
882 Intermediate System to Intermediate System (IS-IS)