IS-IS was not originally designed for IP routing. Some aspects of CLNP
routing, such as system IDs and area addresses, exist in the IP extension of IS-IS. The
IS-IS area address is required to identify the area in which the router participates.
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Before you can configure the area address,
you must create the IS-IS routing process, which is also called
an area, using the following command:
create isis
area area_name
-
To add an IS-IS area address to the router, use the
following command:
configure
isis area area_name add area-address area_address
-
To delete an IS-IS area address from a router, use the
following command:
configure
isis area area_name delete area-address area_address
Note
The
ExtremeXOS software implementation of IS-IS
supports no more than three area addresses.