BGP is an exterior gateway protocol which runs between ASs. It focuses on the control of route propagation and selection of optimal routes rather than discovery and calculation of routes.

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BGP (Border Gateway Protocol) is designed to manage how packets are routed across the internet through the exchange of routing and reachability information between autonomous systems (ASs). It does not perform route discovery or calculation like interior gateway protocols but focuses on route propagation and selection.

BGP Is an Exterior Gateway Protocol Which Runs Between ASs