The Exterior Gateway Protocol (EGP) was a routing protocol used to connect different autonomous systems on the Internet from the mid-1980s until the mid-1990s, when it was replaced by Border Gateway Protocol (BGP).


EGP was developed by Bolt, Beranek and Newman in the early 1980s. It was first described in RFC 827[1] and formally specified in RFC 904.[2]

RFC 1772 outlined a migration path from EGP to BGP.[3]


  1. ^ Rosen, Eric (October 1982). Exterior Gateway Protocol (EGP). IETF. doi:10.17487/RFC0827. RFC 827. Retrieved 2 Sep 2020.
  2. ^ Mills, David (April 1984). Exterior Gateway Protocol Formal Specification. IETF. doi:10.17487/RFC0904. RFC 904. Retrieved 2 Sep 2020.
  3. ^ Rekhter, Yakov; Gross, Phill (March 1995). Application of the Border Gateway Protocol in the Internet. IETF. doi:10.17487/RFC1772. RFC 1772. Retrieved 2 Sep 2020.

See also