configure ospf vlan area

configure ospf vlan vlan-name area area-identifier


Associates a VLAN (Virtual LAN) (router interface) with an OSPF (Open Shortest Path First) area. By default, all router interfaces are associated with area

Syntax Description

vlan-name Specifies a VLAN name.
area-identifier Specifies an OSPF area.



Usage Guidelines

Any OSPF network that contains more than one area is required to have an area configured as area 0, also called the backbone. All areas in an autonomous system must be connected to the backbone. When designing networks, you should start with area 0, and then expand into other areas.

The backbone allows summary information to be exchanged between ABRs. Every ABR hears the area summaries from all other ABRs. The ABR then forms a picture of the distance to all networks outside of its area by examining the collected advertisements, and adding in the backbone distance to each advertising router.

When a VLAN is configured to run OSPF, by default you must assign it to an area.


The following command associates the VLAN accounting with an OSPF area:

configure ospf vlan accounting area


This command was first available in ExtremeXOS 10.1.

Platform Availability

This command is available on platforms with an Advanced Edge or Core license as described in the ExtremeXOS 22.2 Feature License Requirements document.