[Idr] I-D Action: draft-ietf-idr-cpr-04.txt

internet-drafts@ietf.org Mon, 01 July 2024 04:56 UTC

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Subject: [Idr] I-D Action: draft-ietf-idr-cpr-04.txt
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Internet-Draft draft-ietf-idr-cpr-04.txt is now available. It is a work item
of the Inter-Domain Routing (IDR) WG of the IETF.

   Title:   BGP Colored Prefix Routing (CPR) for SRv6 based Services
   Authors: Haibo Wang
            Jie Dong
            Ketan Talaulikar
            Tao Han
            Ran Chen
   Name:    draft-ietf-idr-cpr-04.txt
   Pages:   15
   Dates:   2024-06-30

Abstract:

   This document describes a mechanism to advertise IPv6 prefixes in BGP
   which are associated with Color Extended Communities to establish
   end-to-end intent-aware paths for Segment Routing over IPv6 (SRv6)
   services.  Such IPv6 prefixes are called "Colored Prefixes", and this
   mechanism is called Colored Prefix Routing (CPR).  In SRv6 networks,
   the Colored prefixes are the SRv6 locators associated with different
   intent.  SRv6 services (e.g.  SRv6 VPN services) with specific intent
   could be assigned with SRv6 Segment Identifiers (SIDs) under the
   corresponding SRv6 locators, which are advertised as Colored
   prefixes.

   This operational methodology allows the SRv6 service traffic to be
   steered into end-to-end intent-aware paths simply based on the
   longest prefix matching of SRv6 Service SIDs to the Colored prefixes.
   The existing IPv6 Address Family and Color Extended Community are
   reused for the advertisement of IPv6 Colored prefixes without new BGP
   extensions, thus this mechanism is easy to interoperate and can be
   deployed incrementally in multi-domain networks.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-cpr/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-idr-cpr-04

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-idr-cpr-04

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts

[Idr] I-D Action: draft-ietf-idr-cpr-04.txt internet-drafts