The IESG has received a request from the Inter-Domain Routing WG (idr) to consider the following document: - 'BGP Colored Prefix Routing (CPR) for SRv6 based Services' <draft-ietf-idr-cpr-06.txt> as Informational RFC
The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the [email protected] mailing lists by 2025-02-07. Exceptionally, comments may be sent to [email protected] instead. In either case, please retain the beginning of the Subject line to allow automated sorting. 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-Autonomous System (AS) networks which belong to the same trusted domain. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-idr-cpr/ The following IPR Declarations may be related to this I-D: https://datatracker.ietf.org/ipr/6098/ _______________________________________________ IETF-Announce mailing list -- [email protected] To unsubscribe send an email to [email protected]
