Re: [YANG] default values

Juergen Schoenwaelder píše v Čt 17. 01. 2008 v 16:22 +0100:
> On Thu, Jan 17, 2008 at 04:01:50PM +0100, Ladislav Lhotka wrote:
>  
> > At the start of a NETCONF session, the values in the
> > running/startup/whatever configuration may be different even if the
> > server's factory defaults follow the standards. The client can't IMO
> > safely avoid checking or setting all variables in server's
> > configuration.
> 
> Sure. But when I create something new without specifying all defaults,
> do I know what I get? In SNMP, you don't. In YANG, you do.

It depends on what that something is: Manager front ends can certainly
save the user from seeing/specifying configuration variables with
default values (and these needn't be only "MUST" ones, see most CLIs)
but in get-config and edit-config messages I'd prefer not to rely on the
other end to interpret the missing values as defaults. If this is
ensured, the server and client may use different sets of defaults
without any risk of confusion. 

> 
> So if I understand right, your proposal is to remove the default
> statement, not to change its semantics, correct?

Yes.

Lada

-- 
Ladislav Lhotka, CESNET
PGP Key ID: E74E8C0C

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