Border Gateway Protocol (BGP) is the protocol used to determine how to route data from one point on a network to another. At it's simplest, BGP says that a certain IP is controlled by a certain AS, then the router looks to see the closest AS in it's table to get to the end point, the data is handed to that network, and the cycle continues until the end point is reached.
A routing protocol used between autonomous systems. It is the routing protocol that makes the internet work. BGP is a distance-vector routing protocol that carries connectivity information and an additional set of BGP attributes. These attributes allow for a rich set of policies for deciding what the best route to reach a given destination is.
The Border Gateway Protocol is an exterior gateway protocol defined in RFCs 1267 and 1268. It's design is based on experience gained with EGP, as defined in STD 18, RFC 904, and EGP usage in the NSFNET Backbone, as described in RFCs 1092 and 1093. See also: Exterior Gateway Protocol.
This is the protocol used by the core routers on the Internet to route TCP/IP packets. BGP replaces the older Exterior Gateway Protocol. Core routers that use BGP exchange routing information to determine optimal routing paths and also exchange TCP/IP data packets.
A routing protocol used in interdomain routing in large networks to maintain integrity of the network. It allows the routers to exchange only prespecified information with prespecified routers in other domains.