Hi Ketan, Thank you for your comments.
Draft-dong-spring-sr-4map6-segments illustrates IPv4/IPv6 address mapping and packet transformation from the perspective of SRv6, the new SID mainly deal with how to generate new IPv6 headers based on the information of IPv4 packets, it does not involve SRH, so it can be considered as an approach of SRv6 BE. Moreover, SRv6 is inherently within the scope of IPv6-only technology. I think SRv6 aspect can be included in the next version of draft-ietf-v6ops-framework-md-ipv6only-underlay. Best regards Chongfeng From: Ketan Talaulikar Date: 2024-07-27 05:39 To: SPRING WG Subject: [spring] Comment on draft-dong-spring-sr-4map6-segments Hello Authors, The draft refers to https://datatracker.ietf.org/doc/draft-ietf-v6ops-framework-md-ipv6only-underlay/ as the main framework document. However, that document does not reference SRv6. Please correct if I have misread. Further, there is a WG adopted draft in IDR (https://datatracker.ietf.org/doc/draft-ietf-idr-mpbgp-extension-4map6/) which includes the BGP extensions for this feature that also does not refer to SRv6. The above drafts have the same set of authors as the draft-dong-spring-sr-4map6-segments which is based on SRv6 and needs SRv6 extensions for BGP. That makes it unclear to me whether SRv6 extensions are needed and if so why the framework (in v6ops) is not covering these SRv6 aspects. Thanks, Ketan
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