Comments on draft-kong-epp-cdn-mapping-00.txt

I am not a Chinese domain name expert, so please excuse any ignorance I expose with these comments.

Section 5.1.1: I'd recommend including an example <check> response.

Section 5.1.2 and 5.1.3: All of the extension elements are described as optional in the text and the schema,
which implies that they can all be omitted. That doesn't seem right - shouldn't at least one of the elements
be included?

These sections don't describe any differences in the response depending on the domain submitted in the
command. What happens if the query is for an OCDN?  For an SCDN?  For a TCDN?  For a VCDN?  Does it matter?  The
example responses contain a lot of information, but without knowing what was queried I don't know how to
interpret the examples.

Section 5.2.1: Why are the <cdn:VCDNList> and <cdn:VCDN> elements OPTIONAL? If they're not present,
there's no reason to extend the <create> command at all, right?  Shouldn't one of them be present?

Section 5.2.2: I really think this section needs more text to explain what happens when a request is made to
delete an OCDN, SCDN, TCDN, and VCDNs. Is the list of domains returned in the response a list of domains that
are being deleted as a result of deleting an OCDN? If so, that should be clearly explained.

Section 5.2.3 and 5.2.4: Similar comment with OPTIONAL elements and processing of the different forms.

In a private email exchange with Ning Kong we discussed the possibility of this draft (and others like it)
being revised to describe a more general approach to IDN variants.  I would support that effort.

Scott
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