A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : CoAP option for no server-response
Author(s) : Abhijan Bhattacharyya
Soma Bandyopadhyay
Arpan Pal
Filename : draft-tcs-coap-no-response-option-02.txt
Pages : 12
Date : 2013-09-28
Abstract:
There can be typical M2M scenarios where responses from the data
sink to the data source against request/ notification from the
source might be considered redundant. This kind of open-loop
exchange (with no reverse path from the sink to the source) may be
desired while updating resources or notifying about the updated
status of a resource in constrained systems looking for maximized
throughput with minimized resource consumption. CoAP already
provides a non-confirmable (NON) mode of exchange where The
receiving end-point does not respond with ACK. However, the
receiving end-point responds the sender with a status code
indicating "the result of the attempt to understand and satisfy the
request".
This draft introduces a header option: 'No-Resp' to suppress
responses from the receiver and discusses exemplary use cases which
motivated this proposition based on real experience. This option
also provides granularity by allowing suppression of a particular
class or a combination of classes of responses. This option is
applicable for both request/ response as well as resource-observe
mode and may be effective for both unicast and multicast scenarios.
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-02
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-tcs-coap-no-response-option-02
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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