[rfc-dist] RFC 4456 on BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP)

rfc-editor@rfc-editor.org rfc-editor at rfc-editor.org
Thu Apr 27 18:19:39 PDT 2006

A new Request for Comments is now available in online RFC libraries.

        RFC 4456

        Title:      BGP Route Reflection: An Alternative 
                    to Full Mesh Internal BGP (IBGP) 
        Author:     T. Bates, E. Chen,
                    R. Chandra
        Status:     Standards Track
        Date:       April 2006
        Mailbox:    tbates at cisco.com, 
                    enkechen at cisco.com, 
                    rchandra at sonoasystems.com
        Pages:      12
        Characters: 23209
        Obsoletes:  RFC2796, RFC1966

        I-D Tag:    draft-ietf-idr-rfc2796bis-02.txt

        URL:        http://www.rfc-editor.org/rfc/rfc4456.txt

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

This document obsoletes RFC 2796 and RFC 1966.  [STANDARDS TRACK]

This document is a product of the Inter-Domain Routing
Working Group of the IETF.

This is now a Draft Standard Protocol.

STANDARDS TRACK: 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 

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute


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