Hi Rakesh and the other authors, Since this draft also propose to use UDP for active measurement in SRv6, I'd like to suggest that a flag bit in SRH is used to indicate that. The reasons are twofold: (1) routers may only look at L3 header for forwarding without examining the L4 header. So if a test packet can only be identified by UDP port, it may be missed; (2) it's possible to use the same mechanism to support other kinds of active measurements (e.g., HBH IOAM as proposed in our draft https://datatracker.ietf.org/doc/html/draft-song-spring-siam-02.
Best, Haoyu -----Original Message----- From: spring <[email protected]> On Behalf Of [email protected] Sent: Tuesday, February 1, 2022 4:19 PM To: [email protected] Cc: [email protected] Subject: [spring] I-D Action: draft-ietf-spring-stamp-srpm-03.txt A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Packet Routing in Networking WG of the IETF. Title : Performance Measurement Using Simple TWAMP (STAMP) for Segment Routing Networks Authors : Rakesh Gandhi Clarence Filsfils Daniel Voyer Mach(Guoyi) Chen Bart Janssens Richard Foote Filename : draft-ietf-spring-stamp-srpm-03.txt Pages : 24 Date : 2022-02-01 Abstract: Segment Routing (SR) leverages the source routing paradigm. SR is applicable to both Multiprotocol Label Switching (SR-MPLS) and IPv6 (SRv6) data planes. This document describes procedures for Performance Measurement in SR networks using the mechanisms defined in RFC 8762 (Simple Two-Way Active Measurement Protocol (STAMP)) and its optional extensions defined in RFC 8972 and further augmented in draft-ietf-ippm-stamp-srpm. The procedure described is applicable to SR-MPLS and SRv6 data planes and is used for both links and end-to- end SR paths including SR Policies. The IETF datatracker status page for this draft is: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-spring-stamp-srpm%2F&data=04%7C01%7Chaoyu.song%40futurewei.com%7C9e9ebc01c8c942755a2d08d9e5e1c397%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637793580085471585%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=uRFB7p9GlMVjo%2Ft9FOVR7Gg49Ah1Y79CbhzLWHPDFH0%3D&reserved=0 There is also an HTML version available at: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Farchive%2Fid%2Fdraft-ietf-spring-stamp-srpm-03.html&data=04%7C01%7Chaoyu.song%40futurewei.com%7C9e9ebc01c8c942755a2d08d9e5e1c397%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637793580085471585%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=0m4WNO9jMptJw14nENpOaftEzNdQDqHUbRr5YJMaX8w%3D&reserved=0 A diff from the previous version is available at: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Frfcdiff%3Furl2%3Ddraft-ietf-spring-stamp-srpm-03&data=04%7C01%7Chaoyu.song%40futurewei.com%7C9e9ebc01c8c942755a2d08d9e5e1c397%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637793580085471585%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=4qPBxUc7x44ZFWzb3kM7tIVrYODE8iMw8xQD1eMC4zw%3D&reserved=0 Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts _______________________________________________ spring mailing list [email protected] https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fspring&data=04%7C01%7Chaoyu.song%40futurewei.com%7C9e9ebc01c8c942755a2d08d9e5e1c397%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637793580085471585%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=laC%2B5pQbD7tnmE34VUJRR0s19LoPnEipFQbPe0PwfqE%3D&reserved=0 _______________________________________________ spring mailing list [email protected] https://www.ietf.org/mailman/listinfo/spring
