A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : CoAP option for no server-response
Authors : Abhijan Bhattacharyya
Soma Bandyopadhyay
Arpan Pal
Tulika Bose
Filename : draft-tcs-coap-no-response-option-17.txt
Pages : 18
Date : 2016-05-12
Abstract:
There can be M2M scenarios where responses from a server against
requests from client are redundant. This kind of open-loop exchange
(with no response path from the server to the client) may be desired
to minimize resource consumption in constrained systems while
updating a bulk of resources simultaneously, or updating a resource
with a very high frequency. CoAP already provides Non-confirmable
(NON) messages that are not acknowledged by the recipient. However,
the request/response semantics still require the server to respond
with a status code indicating "the result of the attempt to
understand and satisfy the request".
This specification introduces a CoAP option called 'No-Response'.
Using this option the client can explicitly express to the server
its disinterest in all responses against the particular request.
This option also provides granular control to enable expression of
disinterest to a particular class of response or a combination of
response-classes. The server MAY decide to suppress the response by
not transmitting it back to the client according to the value of No-
Response option in the request. This option may be effective for
both unicast and multicast requests. This document also discusses a
few exemplary applications which benefit from this option.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-tcs-coap-no-response-option/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-tcs-coap-no-response-option-17
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-tcs-coap-no-response-option-17
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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