Re: [bess] John Scudder's Discuss on draft-ietf-bess-evpn-oam-req-frmwk-08: (with DISCUSS and COMMENT)

Donald Eastlake <d3e3e3@gmail.com> Mon, 12 April 2021 17:04 UTC

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From: Donald Eastlake <d3e3e3@gmail.com>
Date: Mon, 12 Apr 2021 13:03:45 -0400
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To: John Scudder <jgs@juniper.net>
Cc: The IESG <iesg@ietf.org>, draft-ietf-bess-evpn-oam-req-frmwk@ietf.org, bess-chairs@ietf.org, bess@ietf.org, Matthew Bocci <matthew.bocci@nokia.com>
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Subject: Re: [bess] John Scudder's Discuss on draft-ietf-bess-evpn-oam-req-frmwk-08: (with DISCUSS and COMMENT)
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Hi,

On Wed, Apr 7, 2021 at 10:04 PM John Scudder via Datatracker <
noreply@ietf.org> wrote:
>
> John Scudder has entered the following ballot position for
> draft-ietf-bess-evpn-oam-req-frmwk-08: Discuss
>
> ...
>
> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
>
> Section 2.3:
>
>    EVPN Network OAM mechanisms MUST provide in-band monitoring
>    capabilities. As such, OAM messages MUST be encoded so that they
>    exhibit identical entropy characteristics to data traffic in order
>    that they share the same fate.
>
> It’s not obvious to me what you mean by “identical entropy
characteristics to
> data traffic”. Surely, different flows may have different entropy
> characteristics, so, *which* data traffic? Similarly, with which data
traffic
> are you saying the OAM messages must share fate?

I guess when you changed your COMMENT to a DISCUSS it creates a new thread
so I should reply here as I did to this when it was a COMMENT:

How about something more like:

EVPN Network OAM mechanisms MUST provide in-band monitoring capabilities.
OAM messages SHOULD be encoded so that they exhibit similar entropy
characteristics to data traffic in order maximize the fate sharing between
OAM and data.


> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> Thanks for the clear and readable document. I have one nit and one
question.
>
> 1. Section 1, nit:
>
> “EVPN is an Layer 2” s/an/a/

OK.

Thanks,
Donald
===============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 2386 Panoramic Circle, Apopka, FL 32703 USA
 d3e3e3@gmail.com