[rfc-dist] RFC 9125 on Gateway Auto-Discovery and Route Advertisement for Site Interconnection Using Segment Routing

rfc-editor at rfc-editor.org rfc-editor at rfc-editor.org
Sat Aug 28 10:12:30 PDT 2021

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

        RFC 9125

        Title:      Gateway Auto-Discovery and Route Advertisement 
                    for Site Interconnection Using Segment Routing 
        Author:     A. Farrel,
                    J. Drake,
                    E. Rosen,
                    K. Patel,
                    L. Jalil
        Status:     Standards Track
        Stream:     IETF
        Date:       August 2021
        Mailbox:    adrian at olddog.co.uk,
                    jdrake at juniper.net,
                    erosen52 at gmail.com,
                    keyur at arrcus.com,
                    luay.jalil at verizon.com
        Pages:      12
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-bess-datacenter-gateway-13.txt

        URL:        https://www.rfc-editor.org/info/rfc9125

        DOI:        10.17487/RFC9125

Data centers are attached to the Internet or a backbone network by
gateway routers.  One data center typically has more than one gateway
for commercial, load-balancing, and resiliency reasons.  Other sites,
such as access networks, also need to be connected across backbone
networks through gateways.

This document defines a mechanism using the BGP Tunnel Encapsulation
attribute to allow data center gateway routers to advertise routes to
the prefixes reachable in the site, including advertising them on
behalf of other gateways at the same site.  This allows segment
routing to be used to identify multiple paths across the Internet or
backbone network between different gateways.  The paths can be
selected for load-balancing, resilience, and quality purposes.

This document is a product of the BGP Enabled Services Working Group of the IETF.

This is now a Proposed Standard.

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 Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
memo is unlimited.

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