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[core] about draft-cao-core-pd

Salvatore Loreto <salvatore.loreto@ericsson.com> Sun, 06 November 2011 11:34 UTC

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Date: Sun, 06 Nov 2011 12:34:12 +0100
From: Salvatore Loreto <salvatore.loreto@ericsson.com>
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Subject: [core] about draft-cao-core-pd
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Hi there,

how a CoAP client dynamically discovers a proxy to access the HTTP 
server is an interesting question

the mechanism you proposed in the draft is to use a multicast GET 
request to /.well-known-core
with a 'rt' parameter with the value "core-pd" is interesting

about this proposal it is not clear to me why you mandate that the 
address of the proxy is carried
within the Content payload;
why is it not enough for the sensor reading the source address of the 
answer?


thinking more about the issue,
I am wondering if instead of sending a multicast GET request to 
/.well-known/core
not would be more convenient and straightforward sending directly a 
multicast HTTP GET request
and doing so discover intrinsically the IP address of the proxy?

cheers
Salvatore

-- 
Salvatore Loreto
www.sloreto.com

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