IS-IS Example

This example configuration implements an IS-IS routing setup using the required information from Example IS-IS Routing Configuration.

tnsr(config)# route dynamic isis
tnsr(config-frr-isis)# server vrf default
tnsr(config-isis)# area-tag exco
tnsr(config-isis)# net 49.0001.0100.0200.0001.00
tnsr(config-isis)# is-type level-1
tnsr(config-isis)# exit
tnsr(config-frr-isis)# interface CCLINK
tnsr(config-isis-if)# area-tag exco
tnsr(config-isis-if)# ipv4
tnsr(config-isis-if)# exit
tnsr(config-frr-isis)# interface LAN
tnsr(config-isis-if)# area-tag exco
tnsr(config-isis-if)# passive
tnsr(config-isis-if)# ipv4
tnsr(config-isis-if)# exit
tnsr(config-frr-isis)# enable
tnsr(config-frr-isis)# exit

A similar configuration may be applied to neighboring routers also connected to the same network as the CCLINK interface. Adjust the NET, interface names, and other values as needed.