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Re: Proposal to do away with netconf attributes in data model payloads
On Fri, Apr 02, 2004 at 07:28:30AM -0800, Andy Bierman wrote:
> >I think all approaches require changes to <get-config> retrieved data
> >to compose a meaningful <edit-config> arguments. If I recall correctly,
> >then the operator's requirement was to be able to restore a complete
> >previously retrieved configuration on the device without having to
> >change it (basically the reason for the separation of state/statistics
> >from configuration data). My reading of the current NETCONF ID makes
> >me believe that this is the purpose of the <copy-config> operation.
>
> No. It's not an accident that the default operation for
> <edit-config> is 'merge'. A complete config retrieved with
> <get-config> can be saved (e.g., as the startup config) and
> applied the same box (or replacement box) without modification.
Here is the text from the netconf protocol draft:
merge: The configuration data identified by the element
containing this attribute is merged with the configuration
at the corresponding level in the configuration datastore
identified by the target parameter.
I do not think this "merge" is the same thing as "install this
configuration that worked yesterday". (Unless merge does also
mean to remove everything already configured on the box, in
which case the name seems to be misleading.)
> >So then Cisco should like to idea of subsetting xpath for smaller
> >boxes. I fail to see how creating something completely new to
> >solve the already solved problem of selecting parts of an XML
> >document will save any money.
>
> I don't think the NETCONF WG is the right forum for redefining
> XML standards. The value of off-the-shelf tools is lost if
> the agents don't conform to the same XML standards as the
> applications.
Huh? I did not propose to redefine XML standards.
I do fail to understand why creating something new for all netconf
boxes instead of subsetting XPATH only for small devices will at
the end be a winning situation.
/js
--
Juergen Schoenwaelder International University Bremen
<http://www.eecs.iu-bremen.de/> P.O. Box 750 561, 28725 Bremen, Germany
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