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comments on draft-ietf-netconf-prot-02.txt

I was just reading through the ID and found some places where there is
still text about different formats. I think we decided to only have one
format - XML. The details:

a) copy-config still has a format parameter? This parameter seems to
   have gone everywhere else.

b) The description/examples of <get-config>, <get-all> still refer to/use
   the format parameter.

What worries me a bit more:

c) get-config(source, filter) and get(filter) both take a filter to
   select what should be retrieved. As was noted before, this really
   interacts with the data model and what is currently written down
   (simple subtree filtering) look to me a bit too simplistic. Has
   this filter issue in the meantime been resolved? How does the 
   fact that this interacts with the data model been addressed?

   [My preference is still XPATH since it will be powerful enough
    to handle almost any reasonable XML data model and it is quite
    natural from an XML perspective. I can live with subsetting
    XPATH with a full XPATH capability if that really makes 
    implementations more cost effective. In fact, defining a
    subtree XPATH subset should be rather straightforward.]

d) The edit-config(target, options, config) with the merge / replace 
   / delete attribute operations looks a bit strange (like others have 
   noted before). This really smells like a compound operation which 
   combines merge/replace/delete operations into a single rpc call. I 
   recently looked closer at NFSv4 protocol (RFC 3530) which has such 
   a compound operation and NETCONF might be actually simpler by 
   adopting a model which makes compound operations first class 
   citizens.

I do not know precisely what happened in Seoul - so if these issues have
been closed and I am just too late, let me know and I will shut up.

/js

-- 
Juergen Schoenwaelder		    International University Bremen
<http://www.eecs.iu-bremen.de/>	    P.O. Box 750 561, 28725 Bremen, Germany

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