Re: New Version Notification for draft-rvelucha-bfd-offload-yang-05.txt

Jeffrey Haas <jhaas@pfrc.org> Wed, 26 April 2023 00:20 UTC

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Subject: Re: New Version Notification for draft-rvelucha-bfd-offload-yang-05.txt
From: Jeffrey Haas <jhaas@pfrc.org>
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Date: Tue, 25 Apr 2023 20:20:44 -0400
Cc: t petch <ietfa@btconnect.com>, "Rajaguru Veluchamy (rvelucha)" <rvelucha@cisco.com>, "Rajaguru Veluchamy (rvelucha)" <rvelucha=40cisco.com@dmarc.ietf.org>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>
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To: Reshad Rahman <reshad@yahoo.com>
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Reshad,


> On Apr 25, 2023, at 1:53 PM, Reshad Rahman <reshad@yahoo.com> wrote:
> <RR> Not just the name, but the description. In this case the description says "running in hardware".  Sometimes that line is blurry, e.g. is VPP considered hardware? Should the description instead say something along the times of "running in forwarding plane".
> 
> [...]

> <RR> The BFD implementation I worked on many years ago was distributed to linecards for SH (for scale) but was not "offloaded", in that there was no h/w assist.

A good distinction.  Juniper has implementations that run on the "linecard CPU" and some that are built into the ASIC.

I don't know whether it's worth distinguishing the variants in the model.  For both of these cases, Juniper calls it "distributed".  However, "running on the linecards/forwarding plane" is a reasonable approximation.

-- Jeff