The NewReno Modification to TCP's Fast Recovery Algorithm
RFC 6582, “The NewReno Modification to TCP's Fast Recovery Algorithm”, is a Proposed Standard document published in April 2012 by T. Henderson, S. Floyd, A. Gurtov, Y. Nishida. It obsoletes RFC 3782. The canonical text is published by the RFC Editor.
Abstract
RFC 5681 documents the following four intertwined TCP congestion control algorithms: slow start, congestion avoidance, fast retransmit, and fast recovery. RFC 5681 explicitly allows certain modifications of these algorithms, including modifications that use the TCP Selective Acknowledgment (SACK) option (RFC 2883), and modifications that respond to "partial acknowledgments" (ACKs that cover new data, but not all the data outstanding when loss was detected) in the absence of SACK. This document describes a specific algorithm for responding to partial acknowledgments, referred to as "NewReno". This response to partial acknowledgments was first proposed by Janey Hoe. This document obsoletes RFC 3782. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 6582 is hosted at rfc-editor.org. Available in TXT,HTML.
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- RFC 6586 Experiences from an IPv6-Only Network