Reference Guide

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Command Modes
EXEC
EXEC privilege
Command
History
Example
Figure 23-8. Command Example: show isis neighbors
FTOS#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
!
FTOS#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
Force 10#
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.
detail
(OPTIONAL) Displays detailed information about neighbors.
interface
(OPTIONAL) Identifies the interface type slot/port as one of the following:
• For a Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by
the slot/port information.
• For a Port Channel, enter the keyword
port-channel followed by a number from 1
to 32 for EtherScale, 1 to 255 for TeraScale.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
followed by the slot/port information.
• For a VLAN, enter the keyword
vlan followed by a number from 1 to 4094.
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.8.0 Introduced for the S4810
Table 23-3. show isis neighbors Command Example Fields
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 valid values are Up and
Init.
Type This value displays the adjacency type (Layer 2, Layer 2 or both), and .
Priority IS-IS priority advertised by the neighbor. 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.
Identified Multi-Topology ISIS enabled