Hi,
I think Section 8.3.3. provides an answer:
When datastore processing is complete, the final contents MUST obey
all validation constraints. This validation processing is performed
at differing times according to the datastore. If the datastore is
<running/> or <startup/>, these constraints MUST be enforced at the
end of the <edit-config> or <copy-config> operation. If the
datastore is <candidate/>, the constraint enforcement is delayed
until a <commit> or <validate> operation.
/js
On Mon, Sep 12, 2016 at 01:27:52PM +0200, Yves Beauville wrote:
> Hi,
>
> I am trying to interpret this statement in Section 8.3.1 Payload Parsing of
> RFC 6020.
>
> o If data for a node tagged with "when" is present, and the "when"
> condition evaluates to "false", the server MUST reply with an
> "unknown-element" error-tag in the rpc-error.
>
> With the context node defined Section 7.19.5. The when Statement
>
> o If the context node represents configuration, the tree is the data in
> the NETCONF datastore where the context node exists. The XPath root node has
> all top-level configuration data nodes in all modules as children.
>
> I am providing this dummy module to illustrate my question:
>
> module dummy {
> namespace "http://dummy.com";;
> prefix "du";
>
> container root {
> leaf A {
> type empty:
> }
> leaf B {
> when "A";
> type uint32;
> }
> }
> }
>
> And I consider the following <edit-config> request, while A & B do not exist
> yet in the current datastore.
>
> <rpc message-id="101"
> xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
> <edit-config>
> <target>
> <running/>
> </target>
> <config>
> <root xmlns="http://dummy.com";>
> <A/>
> <B>
> 3
> </B>
> </dummy>
> </config>
> </edit-config>
> </rpc>
>
> During the parsing of the payload of the <edit-config>, leaf "A" is not yet
> present in the running datastore. The "when" statement that controls "B"
> evaluates to false.
>
> Does this mean that the above edit-config request should be rejected with an
> "unknown-element" error-tag in the rpc-error? Or am I misinterpreting the
> RFC?
>
> Yves
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--
Juergen Schoenwaelder Jacobs University Bremen gGmbH
Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany
Fax: +49 421 200 3103 <http://www.jacobs-university.de/>
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