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Re: [netconf] Augmenting rpc-reply

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Fri, 11 September 2020 12:56 UTC

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Date: Fri, 11 Sep 2020 14:56:23 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: "Jan Lindblad (jlindbla)" <jlindbla=40cisco.com@dmarc.ietf.org>
Cc: Netconf <netconf@ietf.org>, "kent@watsen.net" <kent@watsen.net>
Message-ID: <20200911125623.upqcb4p5oqnv5xd7@anna.jacobs.jacobs-university.de>
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Subject: Re: [netconf] Augmenting rpc-reply
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On Fri, Sep 11, 2020 at 12:29:54PM +0000, Jan Lindblad (jlindbla) wrote:

> However, RFC 7950 says in section 7.14.4:
> 
>    If the RPC operation invocation succeeded and no output parameters
>    are returned, the <rpc-reply> contains a single <ok/> element defined
>    in [RFC6241].
> 
> Is it reasonable to interpret this 7950 language to exclude any and all extensions? One could argue that this prescribes a single <ok/> as far as 7950 and 6241 are concerned, but not ruling out extensions.

This is how I would have read this statement.
 
> Which seems to say that if a note is returned, you would get:
> 
>       <rpc-reply message-id="101"
>                  xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
>         <note xmlns="my-namespace">abc...</note>
>       </rpc-reply>
> 
> This is also consistent with the XSD in RFC 6241.

This behavior might be consistent with the XSD but I suspect that some
clients get pretty confused if instead of an <ok/> that get something
they did not expect.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>

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