CoAP Simple Congestion Control/Advanced

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Publisher: IETF
Doc Type: Standard
Abstract: 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 more advanced, but still simple CoRE Congestion Control mechanisms, called CoCoA. The core of these mechanisms is a Retransmission TimeOut (RTO) algorithm that makes use of Round-Trip Time (RTT) estimates, in contrast with how the RTO is determined as per the base CoAP specification (RFC 7252). The mechanisms defined in this document have relatively low complexity, yet they improve the default CoAP RTO algorithm. The design of the mechanisms in this specification has made use of input from simulations and experiments in real networks.
Publication Date: 2017-10-30
Status Note: Internet-Draft
Link: https://datatracker.ietf.org/doc/html/draft-ietf-core-cocoa-02/
Author(s): Carsten Bormann
August Betzler
Carles Gomez
Ilker Demirkol
Keyword(s): Internet-Draft

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 2914 [Active*]
IETF RFC 6298 [Active*]
IETF RFC 7252 [Active*]
IETF RFC 8085 [Active*]

Bibliographic Reference(s)

10.1016-j.adhoc.2015.04.007 — CoCoA+: an Advanced Congestion Control Mechanism for CoAP EXTERNAL
10.1145-2507924.2507954 — Congestion control in reliable CoAP communication EXTERNAL
IETF draft-bormann-core-congestion-control-02 [Active*]
IETF draft-eggert-core-congestion-control-01 [Active*]
IETF RFC 5348 [Active*]
IETF RFC 5681 [Active*]
IETF RFC 7228 [Active*]
IETF RFC 7641 [Active*]

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Referenced By

IETF RFC 8323 [Active*]