The IESG has approved the following document: - 'BGP Colored Prefix Routing (CPR) for SRv6 based Services' (draft-ietf-idr-cpr-08.txt) as Informational RFC
This document is the product of the Inter-Domain Routing Working Group. The IESG contact persons are Gunter Van de Velde, Jim Guichard and John Scudder. A URL of this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-idr-cpr/ Technical Summary 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-Autonomous System (AS) networks which belong to the same trusted domain. Working Group Summary The shepherd writeup provides a detailed timeline and explanation of the WG process. The eventual consensus to publish as informational reflects engagement from the WG, the various draft proponents, the chairs, and the past and present ADs. Document Quality Per the shepherd writeup: This informational draft does not specify additional protocol changes, but provides a description of an applied use of existing protocols. These protocols were applied in 3+ existing networks. Personnel The Document Shepherd for this document is Susan Hares. The Responsible Area Director is John Scudder. _______________________________________________ IETF-Announce mailing list -- [email protected] To unsubscribe send an email to [email protected]
