Hello WG and Authors,
I have read the draft.
It is a good idea to use IGP extension to notification the HBH ablility.
Commments as follow:
1. How to enable the IGP extensions for HBH？
2. Does the IGP use the HBH option as criterion to genernate a new topology?
BR.
Huanan Chen
From: wangyali
Date: 2020-10-29 21:19
To: lsr@ietf.org
Subject: [Lsr] New Version for draft-wang-lsr-hbh-process-00
Hello WG,
Considering the Hop-by-Hop Options header has been used for IOAM
[I-D.ietf-ippm-ioam-ipv6-options], Alternate Marking method
[I-D.ietf-6man-ipv6-alt-mark], etc., but as specified in RFC8200, the
Hop-by-Hop Options header is only examined and processed if it is explicitly
configured. In this case, nodes may be configured to ignore the Hop-by-Hop
Options header, drop packets containing a Hop-by-Hop Options header, or assign
packets containing a Hop-by-Hop Options header to a slow processing path. Thus,
the performance measurement does not account for all links and nodes along a
path. In addition, packets carrying a Hop-by-Hop Options header may be dropped,
which gravely deteriorates network performance.
Therefore, we propose a new draft about IGP extensions for signaling Hop-by-Hop
Options header processing action at node and link granularity. Such
advertisement is useful for entities (e.g., the centralized controller) to
gather each router's processing action for achieving the computation of TE
paths that be able to support a specific service encoded in the Hop-by-Hop
Options header.
Please let us know your opinion. Questions and comments are very welcome.
Best regards,
Yali
-Original Message-
From: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org]
Sent: Thursday, October 29, 2020 8:42 PM
To: Tianran Zhou ; Huzhibo ;
wangyali
Subject: New Version Notification for draft-wang-lsr-hbh-process-00.txt
A new version of I-D, draft-wang-lsr-hbh-process-00.txt has been successfully
submitted by Yali Wang and posted to the IETF repository.
Name: draft-wang-lsr-hbh-process
Revision: 00
Title: IGP Extensions for Advertising Hop-by-Hop Options Header
Processing Action
Document date: 2020-10-29
Group: Individual Submission
Pages: 10
URL:
https://www.ietf.org/archive/id/draft-wang-lsr-hbh-process-00.txt
Status: https://datatracker.ietf.org/doc/draft-wang-lsr-hbh-process/
Htmlized: https://datatracker.ietf.org/doc/html/draft-wang-lsr-hbh-process
Htmlized: https://tools.ietf.org/html/draft-wang-lsr-hbh-process-00
Abstract:
This document extends Node and Link attribute TLVs to Interior
Gateway Protocols (IGP) to advertise the Hop-by-Hop Options header
processing action and supported services (e.g. IOAM Trace Option and
Alternate Marking) at node and link granularity. Such advertisements
allow entities (e.g., centralized controllers) to determine whether
the Hop-by-Hop Options header and specific services can be supported
in a given network.
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
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