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[Lsr] New Version Notification for draft-wang-lsr-prefix-unreachable-annoucement-03.txt

Aijun Wang <wangaj3@chinatelecom.cn> Mon, 27 July 2020 01:33 UTC

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From: Aijun Wang <wangaj3@chinatelecom.cn>
To: lsr@ietf.org
Cc: 'Zhibo Hu' <huzhibo@huawei.com>, 'Yaqun Xiao' <xiaoyaqun@huawei.com>
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Date: Mon, 27 Jul 2020 09:32:49 +0800
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Subject: [Lsr] New Version Notification for draft-wang-lsr-prefix-unreachable-annoucement-03.txt
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Hi, LSR experts:

We have uploaded the new version of this PUA(Prefix Unreachable Announcement) draft. The main updates are the followings:
1) Describes the solution that using tunnel to redirect traffic among ABRs, when all ABRs reaches the PUA limit.
2) Describe fast rerouting to avoid routing black hole.
3) Defining PUA capabilities announcements for OSPFv2/OSPFv3 and ISIS.

There are also some arguments about the current solution for PUA, for example:
1) Is it suitable to set the "Prefix Originator" sub-TLV to NULL to indicate the prefix is unreachable?
2) if not, what's the consideration? What's the other convincible solution?

Wish to hear comments and suggestions on the above issues. We will also have the presentation on the coming IETF LSR meeting.

Best Regards

Aijun Wang
China Telecom 

-----Original Message-----
From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] 
Sent: Monday, July 27, 2020 9:16 AM
To: Zhibo Hu <huzhibo@huawei.com>; Aijun Wang <wangaj3@chinatelecom.cn>; Yaqun Xiao <xiaoyaqun@huawei.com>
Subject: New Version Notification for draft-wang-lsr-prefix-unreachable-annoucement-03.txt


A new version of I-D, draft-wang-lsr-prefix-unreachable-annoucement-03.txt
has been successfully submitted by Aijun Wang and posted to the IETF repository.

Name:		draft-wang-lsr-prefix-unreachable-annoucement
Revision:	03
Title:		Prefix Unreachable Announcement
Document date:	2020-07-27
Group:		Individual Submission
Pages:		11
URL:            https://www.ietf.org/internet-drafts/draft-wang-lsr-prefix-unreachable-annoucement-03.txt
Status:         https://datatracker.ietf.org/doc/draft-wang-lsr-prefix-unreachable-annoucement/
Htmlized:       https://tools.ietf.org/html/draft-wang-lsr-prefix-unreachable-annoucement-03
Htmlized:       https://datatracker.ietf.org/doc/html/draft-wang-lsr-prefix-unreachable-annoucement
Diff:           https://www.ietf.org/rfcdiff?url2=draft-wang-lsr-prefix-unreachable-annoucement-03

Abstract:
   This document describes the mechanism that can be used to announce
   the unreachable prefixes for service fast convergence.

                                                                                  


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