» RFC 1997 - BGP Communities Attribute Standard defining an extension which allows destinations to be grouped, allowing group-based routing policies. http://tools.ietf.org/html/rfc1997
» RFC 4274 - BGP-4 Protocol Analysis Informational RFC describing how BGP fulfils the requirements for classless inter-domain routing, and its scalability and performance. http://tools.ietf.org/html/rfc4274
» RFC 4275 - BGP-4 MIB Implementation Survey Informational document showing which parts of the SNMP MIB are provided by certain common implementations. http://tools.ietf.org/html/rfc4275
» RFC 4276 - BGP-4 Implementation Report Informational document showing the features and differences in certain common implementations. http://tools.ietf.org/html/rfc4276