CoAP Option Extension : Size

Document Type Expired Internet-Draft (individual)
Authors Kepeng Li  , Linyi Tian  , Barry Leiba 
Last updated 2012-04-22 (latest revision 2011-10-20)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines an extension to the Constrained Application Protocol (CoAP) to add a new option Size, which is used to indicate the resource size in a PUT/POST request or in a GET response. Note Discussion and suggestions for improvement are requested, and should be sent to


Kepeng Li (
Linyi Tian (
Barry Leiba (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)