Name: draft-kun-stoder-00
Title: STODER: A Reliable TCP Spurious Timeout Detection Algorithm using Repacketization
State: Active
Authors: Qian Zhang
Group: Individual Submissions (none)
Date: 2004-09-07
Spurious timeouts are not rare events in wireless wide-area network, e.g.
GPRS or EDGE. It has been reported that spurious timeouts greatly decrease
TCP's performance in many aspects. It is not only because of the
unnecessary retransmission of the last window of data, but also the
congestion control is falsely triggered. Existing proposals of detecting
spurious timeouts either require additional information on each data
packet, e.g., the timestamps option, or heuristically deduce spurious
timeouts. These approaches need heuristic feedbacks from the receiver, and
hence are vulnerable to misbehaving receivers. In this document, a novel
algorithm that reliably detects spurious TCP retransmission timeouts,
called STODER, is presented. STODER is a TCP sender algorithm and does not
require any information attached on data packets. STODER exploits TCP
repacketization to detect false retransmission and is well protected
against malicious receivers. Therefore, a more aggressive response
algorithm can be safely applied along with the STODER algorithm.
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