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Re: [sfc] Regarding last call for draft-ietf-sfc-multi-layer-oam

Linda Dunbar <linda.dunbar@futurewei.com> Tue, 23 November 2021 19:29 UTC

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From: Linda Dunbar <linda.dunbar@futurewei.com>
To: Service Function Chaining IETF list <sfc@ietf.org>, "Joel M. Halpern" <jmh@joelhalpern.com>
Thread-Topic: Re: [sfc] Regarding last call for draft-ietf-sfc-multi-layer-oam
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Date: Tue, 23 Nov 2021 19:29:23 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/sfc/lgvoKgMML092mSz2dQ7OHSwnLiY>
Subject: Re: [sfc] Regarding last call for draft-ietf-sfc-multi-layer-oam
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I support the WGLC for the draft-ietf-sfc-multi-layer-oam-16

I have some questions though:

The Req #1 says that Active SFC OAM should traverse the same path .. in the transport layer as the SFC data packet.
Is the "Transport Layer" refers to TCP/QUIC/UDP transport layer? Or referring to the underlay network path?

Is it necessary for all functions on the SFC to process the Active SFC OAM data packets? The Req#3 says that Egress node must send the "Remote Defect Indication" to the ingress node. Is it necessary for the intermediate Functions to send "Remote Defect Indication" to the ingress node?


Thank you
Linda Dunbar


On Mon, Nov 1, 2021 at 2:50 PM Joel Halpern Direct
<jmh.direct@joelhalpern.com><mailto:&lt;jmh.direct@joelhalpern.com&gt;> wrote:
>
> I have received a polite request with explanation for delay asking for
> more time to read and review the subject document.  Given the state of
> the working group, i want to encourage any and all review.  So I am
> extending the last call by two additional weeks.
>
> Please read and review the document.
> Also, if you are willing to serve as shepherd for this, please let the
> chairs know.  (Don't worry if you have not shepherded a document before.
>   The chairs are more than happy to help you with the process.)
>
> Thank you,
> Joel
>
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> sfc@ietf.org<mailto:sfc@ietf.org>
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