Re: [YANG] default values

Hello,
Why would the presence container come back automatically? There's today no text in the draft, 
that says presence containers are automatically removed or created.

The draft says
"If the leaf has a default value, the server MUST use this value internally if no value is 
provided by the NETCONF client when the instance is created."

Actually we failed to state what happens, if we later explicitly delete a leaf with a default 
value. In my view if the user wants to delete it then it should go away; no value present any 
more.
One more thing I think is still missing from the draft, is whether must expressions consider 
default values or not?

Balazs

Phil Shafer wrote:
> Martin Bjorklund writes:
>> This is an interesting example, but currently YANG does not support
>> this use case, i.e. marking a presence container as present by
>> default.  Is that something we should add?
> 
> This would be confusing and probably broken.  If it's "present"
> by default, why have it and how do you turn it off?  You can't
> delete it, since it comes right back, so you can't turn it off.
> So what's the point of giving it a "presence"?
> 
> Thanks,
>  Phil
> 
> 
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-- 
Balazs Lengyel                       Ericsson Hungary Ltd.
TSP System Manager
ECN: 831 7320                        Fax: +36 1 4377792
Tel: +36-1-437-7320     email: Balazs.Lengyel@ericsson.com

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