Adding a Description to an IPv6 Interface or Subinterface

The router enables you to add a text description or an alias to an IPv6 interface or subinterface. Adding a description helps you identify the interface and keep track of interface connections. The description or alias can be a maximum of 256 characters.

Before you configure IPv6, you must create the lower-layer interfaces over which IPv6 traffic flows. You must configure an IPv6 license using the license ipv6 command before using the IPv6 routing protocol configuration commands on the E Series router. All IPv6 routing protocol configurations are removed from the virtual router when you issue the no ipv6 command. You can use this command in Subinterface Configuration mode.

To assign a text description or an alias to an IPv6 interface:

• Issue the ipv6 description command in Interface Configuration mode.
  host1(config-if)#ipv6 description boston01 ipv6 interface

To assign a text description or an alias to an IPv6 subinterface:

• Issue the ipv6 description command in Subinterface Configuration mode.
  host1(config-subif)#ipv6 description dallas05 ipv6 subinterface

Use the no version to remove the text description or alias.