See also BPG
rotocol) 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 BGP is a path vector protocol that superseded EGP, the original gateway protocol.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
and routing protocol
Often criticized as being too vulnerable, BGP was designed to create a loop-free path through independently operated networks that have their own policies and objectives. As such, the route may not always be the optimal choice because BGP does not guarantee the shortest path, lowest cost or greatest bandwidth from the beginning of the transmission to the end.