[core] Miscellaneous HTTP mapping related questions

["Angelo P. Castellani" <[e-mail]>]

Hi all,

after the last interim meeting, I have various open questions about
the current coap/observe design:

a) In coap-04 there is no reference to intercepting (transparent)
proxies. Is compatibility with intecepting proxies important and
required for CoRE?

b) In observe-01 examples a direct mapping of HTTP bidirectional is
missing. Do we believe that it is a required and important feature?

( See https://datatracker.ietf.org/doc/draft-loreto-http-bidirectional/
for an extensive discussion about these techniques. )
( See https://datatracker.ietf.org/doc/draft-castellani-core-http-coap-mapping/
for a possible mapping of these to observe. )

c) In coap-04 multicast is supported. Is important to evaluate a
standard mapping of a single HTTP request/response to a multicast CoAP
request and related responses?

( https://datatracker.ietf.org/doc/draft-castellani-core-http-coap-mapping/
contains a brief discussion about this, and in my opinion this mapping
should be realized using a single TCP connection mapped to multicast
UDP by the HTTP/CoAP proxy. )

My answer is yes for all the above questions. What is the WG position
about this questions?

Best,
Angelo