Friday, June 6, 2008
How to configure virtual link between different areas in OSPF?
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In multi-area OSPF protocol network, all areas should be connected physically with area 0 (backbone area) for exchanging routing information. But in some cases, it is not possible to connect directly all areas in a network to backbone area. In this case, you can use virtual link to create a connection between backbone area and non backbone area. Basically virtual link is a logical connection to create virtual adjacency between two areas using the least cost path. Two conditions must be fulfilled to apply a virtual link between different areas. One area must be area 0 (backbone area) to create virtual link. One area must be common area between two endpoint routers to create virtual links.
This post was written by: Joshua Daniel
Joshua Daniel is a Management Professional,professional blogger, web designer and front end web developer. Follow him on Twitter
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