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

Gyan Mishra <hayabusagsm@gmail.com> Wed, 22 December 2021 03:37 UTC

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In-Reply-To: <93117e385f944efeadf5c1e6eb954e1e@huawei.com>
From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Tue, 21 Dec 2021 22:37:20 -0500
Message-ID: <CABNhwV1Kf_g_1FFyxbJPNPw=Rk=EDdr9nc-rz0FHAivipjxgsg@mail.gmail.com>
To: "Dongjie (Jimmy)" <jie.dong=40huawei.com@dmarc.ietf.org>
Cc: Loa Andersson <loa@pi.nu>, "draft-mirsky-mpls-p2mp-bfd@ietf.org" <draft-mirsky-mpls-p2mp-bfd@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
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Subject: Re: [mpls] Working Group Adoption Poll (WGAP) on draft-mirsky-mpls-p2mp-bfd
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Hi Loa,

I support WG Adoption as Co-Author.

This draft provides a procedural improvement to RFC 8562 BFD for P2MP networks
and BFD for P2MP networks with active tails and applicability to SR P2MP
policy over SR-MPLS data plane.

This draft details the applicability solutions for in-band bootstrap
of BFD session
utilizes LSP ping in BFD Demand mode  to detect localized defects via
bootstrap of multipoint tail target FEC for P2MP LSP.

Also provides out of band solution to bootstrap multipoint BFD session on a
tail utilizing using BGP BFD attribute RFC 9026 using RFC 8563 updated
procedure for active tails with unsolicited notification with P2MP LSP.

This draft provides a significant improvement for operators in BFD detection
of MVPN P2MP LSP data plane failures applicable to stateless multicast with
SR P2MP policy and BIER.

Kind Regards

Gyan


On Tue, Dec 21, 2021 at 10:15 PM Dongjie (Jimmy) <jie.dong=
40huawei.com@dmarc.ietf.org> wrote:

> 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
> >
> > _______________________________________________
> > mpls mailing list
> > mpls@ietf.org
> > https://www.ietf.org/mailman/listinfo/mpls
>
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-- 

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

*Gyan Mishra*

*Network Solutions A**rchitect *

*Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>*



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