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
Filename : draft-tcs-coap-no-response-option-09.txt
Pages : 16
Date : 2015-03-09
Abstract:
There can be M2M scenarios where responses from server against
requests from client might be considered 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 simultaneously updating a bulk of
resources or updating a resource with a very high frequency. CoAP
already provides a non-confirmable (NON) mode of message exchange
where the server end-point does not respond with ACK. However,
obeying the request/response semantics, the server end-point
responds back with a status code indicating "the result of the
attempt to understand and satisfy the request".
This draft introduces a header option for CoAP called 'No-Response'.
Using this option the client explicitly tells the server to suppress
responses against the particular request. This option also provides
granular control to enable suppression of a particular class or a
combination of response-classes. This option may be effective for
both unicast and multicast requests. Present draft also discusses
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:
http://tools.ietf.org/html/draft-tcs-coap-no-response-option-09
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-tcs-coap-no-response-option-09
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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