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HPCC++: Enhanced High Precision Congestion Control
draft-miao-iccrg-hpccplus-00

The information below is for an old version of the document.
Document Type This is an older version of an Internet-Draft whose latest revision is Expired
Authors Rui Miao , Hongqiang H. Liu , Rong Pan , Jeongkeun Lee , Changhoon Kim , Barak Gafni , Yuval Shpigelman
Last updated 2021-10-25 (Latest revision 2021-04-22)
Replaces draft-pan-tsvwg-hpccplus
Stream (None)
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Expired & archived
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:
https://www.ietf.org/archive/id/draft-miao-iccrg-hpccplus-00.txt

Abstract

Congestion control (CC) is the key to achieving ultra-low latency, high bandwidth and network stability in high-speed networks. However, the existing high-speed CC schemes have inherent limitations for reaching these goals. In this document, we describe HPCC++ (High Precision Congestion Control), a new high-speed CC mechanism which achieves the three goals simultaneously. HPCC++ leverages inband telemetry to obtain precise link load information and controls traffic precisely. By addressing challenges such as delayed signaling during congestion and overreaction to the congestion signaling using inband and granular telemetry, HPCC++ can quickly converge to utilize all the available bandwidth while avoiding congestion, and can maintain near-zero in- network queues for ultra-low latency. HPCC++ is also fair and easy to deploy in hardware, implementable with commodity NICs and switches.

Authors

Rui Miao
Hongqiang H. Liu
Rong Pan
Jeongkeun Lee
Changhoon Kim
Barak Gafni
Yuval Shpigelman

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