BGP is path vector protocol

Posted: February 11, 2016 in BGP

BGP is distance vector protocol as BGP router depends on neighbor router to provide routing information about best routes to reach the destination (neighbor is the whole world for BGP routers).

BGP uses a list of AS numbers through which a packet must pass to reach the destination (this AS_PATH list fully describes the path a packet must take to reach destination)

This is the reason why BGP is called path vector protocol


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