CoAP Simple Congestion Control/Advanced

Document Type Replaced Internet-Draft (individual)
Authors Carsten Bormann  , August Betzler  , Carles Gomez  , Ilker Demirkol
Last updated 2016-07-08
Replaced by draft-ietf-core-cocoa
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Intended RFC status (None)
Expired & archived
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IESG IESG state Replaced by draft-ietf-core-cocoa
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The CoAP protocol needs to be implemented in such a way that it does not cause persistent congestion on the network it uses. The CoRE CoAP specification defines basic behavior that exhibits low risk of congestion with minimal implementation requirements. It also leaves room for combining the base specification with advanced congestion control mechanisms with higher performance. This specification defines some simple advanced CoRE Congestion Control mechanisms, Simple CoCoA. It is making use of input from simulations and experiments in real networks.


Carsten Bormann (
August Betzler (
Carles Gomez (
Ilker Demirkol (

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