configure isis area is-type level

configure isis area area_name is-type level [1 | 2 | both-1-and-2]


This command configures the specified router process to operate as a level 1, level 2, or level 1/level 2 router.

Syntax Description

area_name Specifies the router process you are configuring.
level Specifies the IS-IS operation level for the router.



Usage Guidelines

Adjacencies are only formed with other routers of the same level. In addition, level 1 adjacencies are only formed with other level 1 routers with the same area address.

If there are no other L2 areas, the default is both-1-and-2. If an L2 or L1/L2 area is already present, the default is L1. This is because there can be only one L2 area in each system.


The following command configures the areax router to operate at level 1:

configure isis area areax is-type level 1


This command was first available in ExtremeXOS 12.1.

Platform Availability

This command is available on platforms with a Core or Premier license as described in the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.