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Definition: BGP


(1) See also BPG.

(2) (Border Gateway Protocol) The routing protocol that is used to span independent networks on the Internet (see autonomous system). BGP is a robust, sophisticated and scalable protocol that was developed by the Internet Engineering Task Force (IETF). It supports the CIDR addressing scheme, which increased the number of available IP addresses on the Internet. BGP is a path vector protocol that superseded EGP, the original gateway protocol. See EGP, CIDR and routing protocol.