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Title : STODER: A Reliable TCP Spurious Timeout Detection
Algorithm using Repacketization
Author(s) : Q. Zhang, et al.
Filename : draft-kun-stoder-00.txt
Pages : 8
Date : 2004-9-7
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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