A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : CoAP Endpoint Unit Identification for Multiple Sensor and Actuator in a Node
Authors : Yong-Geun Hong
Do-Hyeun Kim
Mohammad-Sohail Khan
Wen-Quan JIN
Filename : draft-hong-core-coap-endpoint-unit-id-01.txt
Pages : 14
Date : 2014-10-27
Abstract:
The Constrained Application Protocol (CoAP) is a protocol intended
towards devices which are constrained in terms of memory, processing
and power i.e. small low power sensors, switches and valves etc. The
CoAP allows such devices to interactively communicate over the
Internet. This document is motivated by the concept of a composite
CoAP node, a single CoAP entity which integrates multiple CoAP
resources (sensors, actuators) and the scheme to allow the
identification of individual integrated resources while using the
Unit ID as a new CoAP option. The Unit ID option in the CoAP enables
the usage of composite nodes consisting of multiple sensors and
actuators while having a single IP address for communication. The
integrated resources can be individually or collectively communicated
with and/or controlled using CoAP messages with additional options of
UnitSize and UnitID. The UnitSize is basically a numeric value
indicating the number of sub-resources in a composite CoAP node while
the UnitID option has the string identifiers for the sub-resource(s)
for which the message is intended. These options will enable the
CoAP to communicate and control multiple resources by using single
composite messages i.e. UnitID = "*", efficiently utilize IP
addresses i.e. one IP multiple IDs, reduce communication traffic and
hence conserve power among the CoAP resources.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-hong-core-coap-endpoint-unit-id/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-hong-core-coap-endpoint-unit-id-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-hong-core-coap-endpoint-unit-id-01
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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