Hi Carsten,
On Sun, Apr 9, 2017 at 12:25 AM, Carsten Bormann <cabo(_at_)tzi(_dot_)org>
wrote:
Hi Yoshi,
thank you very much for your thoughtful review.
For now, let me pick one of your comments:
3: Since this draft defines new SZX value, I think the doc needs to
update RFC7959. This point should be clarified more in the doc.
The spec does indeed define a new SZX value, for use with the environments
this document is used in (reliable transports). It does not change or add
anything to the way RFC 7959 is used with the existing unreliable
transports; as such it does not really update RFC 7959 as much as it does
extend it for its own purposes.
(However, the same argument could be made for RFC 7641, which we do say we
update.)
Maybe we are not making the point forcefully enough that SZX=7 is meant
for use within this spec?
(Again, however: any other future COAP transports that have larger
messages might pick up SZX=7 as well.)
I don’t have a strong opinion on how to populate the “updates” graph of
RFCs in these boundary cases; it might help to get some more guidance here.
Ok, I see the point. I don't have a strong opinion here either as I am not
a COAP expert.
It could be enough if the draft has more texts to articulate that it won't
cause conflict with unreliable transport COAP.
--
Yoshi