I agree most parts of the draft is relatively mature and below are some comments. 1. In the abstract, " In-situ OAM data fields can be encapsulated into a variety of protocols such as NSH, Segment Routing, Geneve, IPv6 (via extension header), or IPv4." Given none of these has been standardized, it seems improper to give such a statement. 2. When applying IOAM for multicast traffic, we identified some issues that are not handled well by the current IOAM specification and may need some modifications to it. Details can be found in https://tools.ietf.org/html/draft-song-multicast-telemetry-06 Best regards, Haoyu -----Original Message----- From: ippm <ippm-bounces@xxxxxxxx> On Behalf Of The IESG Sent: Tuesday, November 24, 2020 10:24 AM To: IETF-Announce <ietf-announce@xxxxxxxx> Cc: acm@xxxxxxxxxxxxxxxx; ippm-chairs@xxxxxxxx; draft-ietf-ippm-ioam-data@xxxxxxxx; ippm@xxxxxxxx Subject: [ippm] Last Call: <draft-ietf-ippm-ioam-data-11.txt> (Data Fields for In-situ OAM) to Proposed Standard The IESG has received a request from the IP Performance Measurement WG (ippm) to consider the following document: - 'Data Fields for In-situ OAM' <draft-ietf-ippm-ioam-data-11.txt> as Proposed Standard 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 last-call@xxxxxxxx mailing lists by 2020-12-08. Exceptionally, comments may be sent to iesg@xxxxxxxx instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract In-situ Operations, Administration, and Maintenance (IOAM) records operational and telemetry information in the packet while the packet traverses a path between two points in the network. This document discusses the data fields and associated data types for in-situ OAM. In-situ OAM data fields can be encapsulated into a variety of protocols such as NSH, Segment Routing, Geneve, IPv6 (via extension header), or IPv4. In-situ OAM can be used to complement OAM mechanisms based on e.g. ICMP or other types of probe packets. The file can be obtained via https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-ippm-ioam-data%2F&data=04%7C01%7Chaoyu.song%40futurewei.com%7Cbbb0146bf7a147e51d6508d890a658ec%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637418391415318993%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2BUFaTczHikH8kYqdi%2F3CmLMgYbtpHp8%2Ferd0ihEbnIU%3D&reserved=0 The following IPR Declarations may be related to this I-D: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fipr%2F3526%2F&data=04%7C01%7Chaoyu.song%40futurewei.com%7Cbbb0146bf7a147e51d6508d890a658ec%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637418391415318993%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ncOk8%2F%2FAswOanSp3FQSnquqZJasbhwPGNUiAjK%2FPbTY%3D&reserved=0 _______________________________________________ ippm mailing list ippm@xxxxxxxx https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fippm&data=04%7C01%7Chaoyu.song%40futurewei.com%7Cbbb0146bf7a147e51d6508d890a658ec%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637418391415318993%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=6PjMoFSxmg4YogDTNuSP%2FgUjfWyqNruCs%2BWCfchz%2BSk%3D&reserved=0 -- last-call mailing list last-call@xxxxxxxx https://www.ietf.org/mailman/listinfo/last-call