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RFC 4456 - BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP)

  • Status: Draft Standard
  • Published: April 2006
  • Stream: IETF
  • Obsoletes: RFC1966, RFC2796
  • Errata: No Errata

Status of This Memo​

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright (C) The Internet Society (2006).

Abstract​

The Border Gateway Protocol (BGP) is an inter-autonomous system routing protocol designed for TCP/IP internets. Typically, all BGP speakers within a single AS must be fully meshed so that any external routing information must be re-distributed to all other routers within that Autonomous System (AS). This represents a serious scaling problem that has been well documented with several alternatives proposed.

This document describes the use and design of a method known as "route reflection" to alleviate the need for "full mesh" Internal BGP (IBGP).

This document obsoletes RFC 2796 and RFC 1966.

Table of Contents​