[Anima] draft-li-rtgwg-protocol-assisted-protocol (was: Re: IETF 105 mic comments on draft-li-rtgwg-protocol-assisted-protocol)

I see subject draft is again on the agenda of RTGWG'109 and the authors also asked
for a slot to present to ANIMA (which we would be happy to have, time permitting). 

Some thoughts as contributor, maybe ANIMA chair:

Reading the draft it looks like a reinvention of the ANIMA GRASP protocol
that we finished almost 3 years ago, but without many of the mechanisms
that make GRASP a well reuseable, easily extensible protocol. So i wonder
why we would want to also do another more imited protocol for the same
goals.

On the mike RTGWG @IETF105, interest was raised to see a more comprehensive
signalling enxchange example. Version 03 of the document seems to have
expanded the BGP example a bit, but still not comprehensive enough for me
to understand if/how this approach would ultimately work.

I would like to encourage the authors to concentrate on fully specifying
intended use-cases - ideally by simply specifying the use-case as
solution using GRASP (we call this GRASP objectives). I am sure
ANIMA participants (including me) would be happy to help explaining how
to specify such a protocol on top of GRASP once we understand the use-case.

Cheers
    Toerless

On Mon, Jul 22, 2019 at 11:02:31AM -0400, Jeffrey Haas wrote:
> To repeat my comments from the microphone regarding this draft:
> 
> We already have per-protocol operational and configuration state via the
> IETF yang models for a given protocol.
> 
> We also have mechanisms to fetch operational state for such protocols; e.g.
> netconf and restconf.
> 
> Rather than inventing a new mechanism to do troubleshooting for a protocol,
> I'd suggest it makes better sense to augment existing IETF yang models to
> include RPCs for interacting with troubleshooting for that protocol.
> 
> -- Jeff
> 
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> rtgwg@ietf.org
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