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Re: [Tsv-art] Re: [Last-Call] Re: Tsvart telechat review of draft-ietf-bfd-unaffiliated-echo-12

Zaheduzzaman Sarker <zahed.sarker.ietf@gmail.com> Thu, 17 October 2024 20:54 UTC

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From: Zaheduzzaman Sarker <zahed.sarker.ietf@gmail.com>
Date: Thu, 17 Oct 2024 22:54:21 +0200
Message-ID: <CAEh=tcdrRVFrv3RRCkacGEFd464qeqx-VR0X--f57SHG61PFqA@mail.gmail.com>
Subject: Re: [Tsv-art] Re: [Last-Call] Re: Tsvart telechat review of draft-ietf-bfd-unaffiliated-echo-12
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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CC: "Brian Trammell (IETF)" <ietf@trammell.ch>, Erik Auerswald <auerswal@unix-ag.uni-kl.de>, tsv-art@ietf.org, draft-ietf-bfd-unaffiliated-echo.all@ietf.org, last-call@ietf.org, rtg-bfd@ietf.org
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On Thu, 17 Oct 2024 at 22:28, Stephen Farrell <stephen.farrell@cs.tcd.ie>
wrote:

>
> Hi Jeff,
>
> (Not asking for any specific change, the discussion has I'm
> sure provided the IESG enough input already, but I'm curious...)
>
> On 10/17/24 20:46, Jeffrey Haas wrote:
> >   It's just doing IP forwarding.
>
> You've said that a few times and I find it a little confusing.
>
> "Just IP forwarding" to me would not include replying to the sender
> of a BFD echo packet. ICMP yes, but I don't think BFD is a built-in
> part of an IP stack in general and "just forwarding" would in general
> be driven by rules wrt. the packet destination and not source.
>
> I wonder what I'm missing?


I would also like to understand this. One of my ballot comment is related
to this. This specification says the loop-back device doesn’t need to
support BFD, does this mean it can be any IP forwarder? I think the answer
should be yes.

//Zahed

>
>
> Ta,
> S.
>
>
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