Intel® NetStructure™ 6000 Switch

C H A P T E R 5
Intel® NetStructure 6000 Switch User Guide
gated>config
gated#set routerid 193.21.2.2
gated#add ospf
gated#ospf
gated/ospf#add area[0.0.0.2]
gated/ospf#area[0.0.0.2]
gated/ospf/area[0.0.0.2]#add if[193.21.2.22]
gated/ospf/area[0.0.0.2]#activate
gated/ospf/area[0.0.0.2]#save
Creating Virtual Links
The OSPF protocol requires that all areas must be connected to the
backbone. OSPF requires that every area connect to the backbone and
that every area, including the backbone area, be contiguous.
A virtual link is used to logically connect an area to the backbone,
when it cannot physically connect to the backbone. The two end
points of a virtual link are Area Border Routers (ABR). The virtual
link must be configured for each ABR.
To configure a virtual link
• Add the area for each Area Board Router.
• Add the Router ID of the Area Border Router connected to each
area.
• Add the backbone.
• Set the transit area used to link the virtual link to the backbone.
In the Virtual Link Topology example, Area 0.0.0.1 is connected to
the backbone through ABR1. Area 0.0.0.2 needs to be connected
through ABR1 to Area 0.0.0.1 to be connected to the backbone.
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