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Re: [netconf] Virtual hum for the question on "https-notif" draft

"Eric Voit (evoit)" <evoit@cisco.com> Wed, 29 April 2020 17:59 UTC

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From: "Eric Voit (evoit)" <evoit@cisco.com>
To: Kent Watsen <kent+ietf@watsen.net>, "Rob Wilton (rwilton)" <rwilton=40cisco.com@dmarc.ietf.org>
CC: "netconf@ietf.org" <netconf@ietf.org>, Martin Bjorklund <mbj@tail-f.com>
Thread-Topic: [netconf] Virtual hum for the question on "https-notif" draft
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Date: Wed, 29 Apr 2020 17:59:00 +0000
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Subject: Re: [netconf] Virtual hum for the question on "https-notif" draft
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From: Kent Watsen, April 27, 2020 11:28 AM



On Apr 27, 2020, at 8:08 AM, Rob Wilton (rwilton) <rwilton=40cisco.com@dmarc.ietf.org <mailto:rwilton=40cisco.com@dmarc.ietf.org> > wrote:

 

[As an individual contributor]

 

Changing my stance somewhat from the NETCONF meeting …

 

After looking into the details a bit more, section 7 of rfc8639 states:

 

   A specification for a transport MUST identify any encodings that are

   supported.  If a configured subscription's transport allows different

   encodings, the specification MUST identify the default encoding.

 

Does this imply that the http-notif draft either must state a default encoding (or otherwise update rfc8639)?

 

It seems that way...at least when https-notif is being used for RFC 8639 (it doesn’t have to be).

 

Looking at the hum-results so far, 70% picked "Let the market decide” (with the remaining 30% all picking "Publisher MUST implement JSON encoding”). 

 

In light of the RFC 8639 text quoted above, we might question the validity of the hum…or, given the strong preference from the hum, we might question the validity of that constraint in RFC 8639.  If questioning RFC 8639, a better question to ask might be why the configurable “encoding” leaf isn’t mandatory (also eliminating this issue and seemingly cleaner)?

 

<eric> The WG feedback during RFC-8639 development was that encoding was often implied from transport.  Therefore mandating exposure of this information in the model was overly verbose, and could result in misconfiguration.  

 

Adding Martin to the thread as he was previosuly involved with this discussion.


Eric

 

<...>

 

Kent // contributor

 





 

I’ve also filled in the virtual hum.

 

Regards,
Rob

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