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

John Scudder <jgs@juniper.net> Mon, 12 April 2021 17:38 UTC

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From: John Scudder <jgs@juniper.net>
To: Donald Eastlake <d3e3e3@gmail.com>
CC: The IESG <iesg@ietf.org>, "draft-ietf-bess-evpn-oam-req-frmwk@ietf.org" <draft-ietf-bess-evpn-oam-req-frmwk@ietf.org>, "bess-chairs@ietf.org" <bess-chairs@ietf.org>, "bess@ietf.org" <bess@ietf.org>, Matthew Bocci <matthew.bocci@nokia.com>
Thread-Topic: John Scudder's Discuss on draft-ietf-bess-evpn-oam-req-frmwk-08: (with DISCUSS and COMMENT)
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Date: Mon, 12 Apr 2021 17:38:19 +0000
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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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Thanks for hopping threads, I shoulda caught that last one. Your proposed change looks fine, I’ll remove my DISCUSS in anticipation of you issuing a new version. (One nit on your new text, “in order maximize” should be “in order to maximize”.)

—John

On Apr 12, 2021, at 1:03 PM, Donald Eastlake <d3e3e3@gmail.com<mailto:d3e3e3@gmail.com>> wrote:


[External Email. Be cautious of content]


Hi,

On Wed, Apr 7, 2021 at 10:04 PM John Scudder via Datatracker <noreply@ietf.org<mailto: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<mailto:d3e3e3@gmail.com>

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