This task explains how to create an IPv6 IS-IS process and enable IPv6 IS-IS support on an interface.

Configuring IS-IS comprises two activities. The first activity, creates an IS-IS routing process using protocol-independent IS-IS commands. The second activity, configures the operation of the IS-IS protocol on an interface.

Command syntax for the global protocol-independent configuration:

To enable IS-IS for the specified IS-IS routing process, and enter router configuration mode use the following command:

Router(config)# router isis area-name

Next, configure an IS-IS network entity title (net) for the routing process:

Router(config-router)# net network-entity-title

The network-entity-title argument defines the area addresses for the IS-IS area and the system ID
of the router.

After configuring an IS-IS routing process it may be enabled on appropriate interfaces by the
following command:

Router(config-if)# ipv6 router isis area-name

Examples

The following example shows the minimal configuration necessary to enable single topology IS-IS for IPv6 on a router. First the routing process is created, then this process is enabled on Ethernet interface 0/0/1.