3708: Using TCP Duplicate Selective Acknowledgement (DSACKs) and Stream Control Transmission Protocol (SCTP) Duplicate Transmission Sequence Numbers (TSNs) to Detect Spurious Retransmissions.

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TCP and Stream Control Transmission Protocol (SCTP) provide notification of duplicate segment receipt through Duplicate Selective Acknowledgement (DSACKs) and Duplicate Transmission Sequence Number (TSN) notification, respectively. This document presents conservative methods of using this information to identify unnecessary retransmissions for various applications.

Status EXPERIMENTAL
Format TXT=20818 bytes
Authors M. Allman
Date February 2004
Keyphrases duplicate retransmitted TCP DSACKs

References

RFC793: Transmission Control Protocol.
RFC1323: TCP Extensions for High Performance.
RFC2119: Key words for use in RFCs to Indicate Requirement Levels.
RFC2581: TCP Congestion Control.
RFC2883: An Extension to the Selective Acknowledgement (SACK) Option for
RFC2960: Stream Control Transmission Protocol.
RFC3517: A Conservative Selective Acknowledgment (SACK)-based Loss Recovery Algorithm for
RFC3522: The Eifel Detection Algorithm for
RFC3540: Robust Explicit Congestion Notification (ECN) Signaling with Nonces.

Referenced by

RFC4015: The Eifel Response Algorithm for
RFC4138: Forward RTO-Recovery (F-RTO): An Algorithm for Detecting Spurious Retransmission Timeouts with TCP and the Stream Control Transmission Protocol (SCTP).
RFC4614: A Roadmap for Transmission Control Protocol (TCP) Specification Documents.
RFC4653: Improving the Robustness of TCP to Non-Congestion Events.