IETF Logo Mail Archive

Re: [pim] pim wg adoption call for draft-liu-pim-mofrr-tilfa-06.txt

Yisong Liu <liuyisong@chinamobile.com> Mon, 27 June 2022 02:41 UTC

Return-Path: <liuyisong@chinamobile.com>
X-Original-To: pim@ietfa.amsl.com
Delivered-To: pim@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A620DC15948C for <pim@ietfa.amsl.com>; Sun, 26 Jun 2022 19:41:46 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.908
X-Spam-Level:
X-Spam-Status: No, score=-1.908 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CWjSuCwf_NbS for <pim@ietfa.amsl.com>; Sun, 26 Jun 2022 19:41:42 -0700 (PDT)
Received: from cmccmta1.chinamobile.com (cmccmta1.chinamobile.com [221.176.66.79]) by ietfa.amsl.com (Postfix) with ESMTP id 8758DC14CF0A for <pim@ietf.org>; Sun, 26 Jun 2022 19:41:40 -0700 (PDT)
X-RM-TagInfo: emlType=0
X-RM-SPAM-FLAG: 00000000
Received: from spf.mail.chinamobile.com (unknown[172.16.121.83]) by rmmx-syy-dmz-app01-12001 (RichMail) with SMTP id 2ee162b918e0f97-e3bc1; Mon, 27 Jun 2022 10:41:37 +0800 (CST)
X-RM-TRANSID: 2ee162b918e0f97-e3bc1
X-RM-TagInfo: emlType=0
X-RM-SPAM-FLAG: 00000000
Received: from CMCCPC (unknown[222.129.49.10]) by rmsmtp-syy-appsvrnew02-12027 (RichMail) with SMTP id 2efb62b918dfa88-433f9; Mon, 27 Jun 2022 10:41:36 +0800 (CST)
X-RM-TRANSID: 2efb62b918dfa88-433f9
From: Yisong Liu <liuyisong@chinamobile.com>
To: 'Gyan Mishra' <hayabusagsm@gmail.com>, 'Stig Venaas' <stig@venaas.com>
Cc: pim@ietf.org
Date: Mon, 27 Jun 2022 10:41:39 +0800
Message-ID: <094301d889cf$6e4a0550$4ade0ff0$@chinamobile.com>
MIME-Version: 1.0
Content-Type: multipart/related; boundary="----=_NextPart_000_0944_01D88A12.7C6EF300"
X-Mailer: Microsoft Outlook 16.0
Thread-Index: AdiJyJ/LLn3PgwO2Se6h50tc3+RBnA==
Content-Language: zh-cn
Archived-At: <https://mailarchive.ietf.org/arch/msg/pim/CMRZo2fZJsmuTCqfknTC18_4ZTc>
Subject: Re: [pim] pim wg adoption call for draft-liu-pim-mofrr-tilfa-06.txt
X-BeenThere: pim@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: Protocol Independent Multicast <pim.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/pim>, <mailto:pim-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/pim/>
List-Post: <mailto:pim@ietf.org>
List-Help: <mailto:pim-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/pim>, <mailto:pim-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 27 Jun 2022 02:41:46 -0000

Hi Gyan,

 

Thank you for your support. Pls see my reply inline [LYS].

 

Best Regards

Yisong

 

发件人: pim <pim-bounces@ietf.org> 代表 Gyan Mishra
发送时间: 2022年6月26日 13:34
收件人: Stig Venaas <stig@venaas.com>
抄送: pim@ietf.org
主题: Re: [pim] pim wg adoption call for draft-liu-pim-mofrr-tilfa-06.txt

 

 

I support WG adoption of this draft.

 

I think this procedure of using TI-LFA post computation backup path topology independently versus using LFA which is topology dependent makes the secondary path failover work in cases where the secondary path does not exist or due to costing is not used.

 

Question for authors?

 

Can this enhancement to MoFRR to use TI-LFA local protection for secondary UMH be applicable to MPLS as well?

 

[LYS] Yes, it can be applicable in both SR MPLS and SRv6 networks.

 

Also as TI-LFA local protection for MoFRR secondary UMH applicability to SR-MPLS data plane as well as SRv6, could there be a possible standards track draft in Spring for this new solution.

 

[LYS] The mechanism in the draft does not have new protocol extensions, but uses the existing PIM join attributes of type 0 and type 4 to carry the SR repair path of TILFA. I'm not sure whether it is appropriate to submit a standard track draft.

 

Kind Regards 

 

Gyan

 

On Fri, Jun 24, 2022 at 5:04 PM Stig Venaas <stig@venaas.com <mailto:stig@venaas.com> > wrote:

The draft draft-liu-pim-mofrr-tilfa-06.txt was presented at our last
meeting. We had 15 people in favor of adoption and 1 against.

This starts an adoption call to see if we indeed have the needed
support to adopt the draft. Please review and let us know by Friday
July 8th whether you support adoption or not.

Regards,
Stig

_______________________________________________
pim mailing list
pim@ietf.org <mailto:pim@ietf.org> 
https://www.ietf.org/mailman/listinfo/pim

-- 

 <http://www.verizon.com/> 

Gyan Mishra

Network Solutions Architect 

Email gyan.s.mishra@verizon.com <mailto:gyan.s.mishra@verizon.com> 

M 301 502-1347

v2.23.0 | Report a Bug | By Email