Border Gateway Protocol BGP (BGP) An {Exterior Gateway Protocol} defined in {RFC 1267} and {RFC 1268}. Its design is based on experience gained with {Exterior Gateway Protocol} (EGP), as defined in {STD} 18, {RFC 904} and EGP usage in the {NSFNet} {backbone}, as described in RFCs 1092 and 1093. (1994-11-29)