Enabling IS-IS for an Interface

IS-IS can be enabled for a specified interface for a device. Several commands can then be accessed that allow the configuration of IS-IS on the specified interface. This task enables IS-IS routing for an interface Ethernet.

About this task

1. Enter the configure terminal command to access global configuration mode.
   

   device# configure terminal

2. Enter the interface ethernet command and specify an interface.
   

   device(config)# interface ethernet 1/2
   

3. Enter the ip router isis command to enable IS-IS for the interface.
   

   device(conf-if-eth-1/2)# ip router isis
   

Example

The following example enables IS-IS routing for an interface Ethernet.

device# configure terminal
device(config)# interface ethernet 1/2
device(conf-if-eth-1/2)# ip router isis