Re: [mpls] Working Group Adoption Poll (WGAP) on draft-mirsky-mpls-p2mp-bfd

"Yangfan(Fan,IP Standards)" <shirley.yangfan@huawei.com> Wed, 22 December 2021 08:49 UTC

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From: "Yangfan(Fan,IP Standards)" <shirley.yangfan@huawei.com>
To: "Dongjie (Jimmy)" <jie.dong=40huawei.com@dmarc.ietf.org>, Loa Andersson <loa@pi.nu>, "mpls@ietf.org" <mpls@ietf.org>
CC: "draft-mirsky-mpls-p2mp-bfd@ietf.org" <draft-mirsky-mpls-p2mp-bfd@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>
Thread-Topic: [mpls] Working Group Adoption Poll (WGAP) on draft-mirsky-mpls-p2mp-bfd
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Date: Wed, 22 Dec 2021 08:49:02 +0000
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Subject: Re: [mpls] Working Group Adoption Poll (WGAP) on draft-mirsky-mpls-p2mp-bfd
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Hi MPLS,

The draft draft-mirsky-mpls-p2mp-bfd provides a useful mechanism to detect failures along P2MP MPLS LSPs. Thus, I support the adoption. 
In addition, I have the same question on the TLV which Jimmy pointed out, as BFD doesn't define any optional TLV in ctrl packet format. It would be good to clarify it in future revisions.

Regards,
Fan 



-----Original Message-----
From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of Dongjie (Jimmy)
Sent: Wednesday, December 22, 2021 11:15 AM
To: Loa Andersson <loa@pi.nu>; mpls@ietf.org
Cc: draft-mirsky-mpls-p2mp-bfd@ietf.org; mpls-chairs@ietf.org
Subject: Re: [mpls] Working Group Adoption Poll (WGAP) on draft-mirsky-mpls-p2mp-bfd

Hi Loa, 

I've read this document and support its adoption. 

I have one comment which could be resolved either before or after the adoption.

Section 3.2 describes the Non-IP Encapsulation of Multipoint BFD, in which a new ACH channel type is defined, and it says a Source Address TLV MUST immediately follow a BFD control message. 

I'd suggest to provide a figure of the packet format of non-IP Multipoint BFD encapsulation. And one related question is: is the source address TLV considered as part of the Multipoint BFD packet or not?

Best regards,
Jie

> -----Original Message-----
> From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of Loa Andersson
> Sent: Tuesday, December 14, 2021 6:36 AM
> To: mpls@ietf.org
> Cc: draft-mirsky-mpls-p2mp-bfd@ietf.org; mpls-chairs@ietf.org
> Subject: [mpls] Working Group Adoption Poll (WGAP) on 
> draft-mirsky-mpls-p2mp-bfd
> 
> Working Group,
> 
> This is to start a two week poll on adopting
>   draft-mirsky-mpls-p2mp-bfd
> as a MPLS working group document.
> 
> Though "two weeks" brings all the way into the holiday season. so it 
> will be a bit longer.
> 
> Please send your comments (support/not support) to the mpls working 
> group mailing list (mpls@ietf.org). Please give a technical motivation 
> for your support/not support, especially if you think that the 
> document should not be adopted as a working group document.
> 
> There is no IPRs disclosure against this document.
> 
> The authors have all stated on the MPLS wg mailing list that they are 
> unaware of any IPRs that relates to this document.
> 
> The working group adoption poll ends January 4, 2022.
> 
> /Loa
> --
> Loa Andersson                        email: loa@pi.nu
> Senior MPLS Expert                          loa.pi.nu@gmail.com
> Bronze Dragon Consulting             phone: +46 739 81 21 64
> 
> _______________________________________________
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> mpls@ietf.org
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