Dear LSR WG, We've uploaded a new revision of draft-wang-lsr-igp-extensions-ifit-00 to replace draft-wang-lsr-ifit-node-capability-advertisement. In this new revision, Node and Link Attribute TLVs are extended to IGP for signaling the supported IFIT capability of egress and/or intermediate nodes to the ingress nodes.
The changes in this revision are: 1. added Link Attribute TLVs extension to IGP to signal IFIT Capability at link granularity. 2. updated Application section, which illustrates such advertisements would helpful for avoiding the leak of IFIT-specific header and metadata, as well as, for ingress routers to gather each router's IFIT capability for achieving the computation of TE paths or loose TE paths that be able to fulfill the visibility of on-path OAM data. 3. updated Acknowledgements sections, in which, the authors would like to thank Acee Lindem, Christian Hopps, Robert Raszuk, Les Ginsberg, Jeff Tantsura, Rakesh Gandhi, Tony Li and Greg Mirsky for the comments. 4. adding China Telecom into the author list. We are looking forward to hearing your feedback and comments, and try to achieve consensus. Thanks, Yali -----Original Message----- From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org] Sent: Monday, July 13, 2020 9:15 PM To: Tianran Zhou <zhoutian...@huawei.com>; wangyali <wangyal...@huawei.com>; Huanan Chen <chenhu...@chinatelecom.cn>; Liumin (Lucy) <lucy.liu...@huawei.com>; Ran Pang <pang...@chinaunicom.cn>; Liumin (Lucy) <lucy.liu...@huawei.com> Subject: New Version Notification for draft-wang-lsr-igp-extensions-ifit-00.txt A new version of I-D, draft-wang-lsr-igp-extensions-ifit-00.txt has been successfully submitted by Yali Wang and posted to the IETF repository. Name: draft-wang-lsr-igp-extensions-ifit Revision: 00 Title: IGP Extensions for In-situ Flow Information Telemetry (IFIT) Capability Advertisement Document date: 2020-07-12 Group: Individual Submission Pages: 12 URL: https://www.ietf.org/internet-drafts/draft-wang-lsr-igp-extensions-ifit-00.txt Status: https://datatracker.ietf.org/doc/draft-wang-lsr-igp-extensions-ifit/ Htmlized: https://tools.ietf.org/html/draft-wang-lsr-igp-extensions-ifit-00 Htmlized: https://datatracker.ietf.org/doc/html/draft-wang-lsr-igp-extensions-ifit Abstract: This document extends Node and Link Attribute TLVs to Interior Gateway Protocols (IGP) to advertise supported In-situ Flow Information Telemetry (IFIT) capabilities at node and/or link granularity. An ingress router cannot insert IFIT-Data-Fields for packets going into a path unless an egress router has indicated via signaling that it has the capability to process IFIT-Data-Fields. In addition, such advertisements would be useful for ingress routers to gather each router's IFIT capability for achieving the computation of Traffic Engineering (TE) paths or loose TE paths that be able to fulfill the visibility of on-path OAM data. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat _______________________________________________ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
