The IESG has approved following document: - 'Using TCP DSACKs and SCTP Duplicate TSNs to Detect Spurious Retransmissions ' <draft-ietf-tsvwg-dsack-use-02.txt> as an Experimental RFC This document is the product of the Transport Area Working Group Working Group. The IESG contact persons are Jon Peterson and Allison Mankin. Technical Summary TCP and SCTP provide notification of duplicate segment receipt through DSACK and Duplicate TSN notification, respectively. This document shows conservative methods of using this information to identify unnecessary retransmissions for various applications. This document does not, however outline what a TCP or SCTP sender should do after a spurious retransmission is detected. It is hoped that future work building on the detection of spurious transmissions will make TCP and SCTP more robust to reordererd packets. Working Group Summary The TSVWG supports this protocol going forward, and is investigating several proposals that rely on the detection of spurious retransmissions which might benefit from this work. Protocol Quality This document was reviewed for the IESG by Allison Mankin and Jon Peterson.
