Method, system and article for improved TCP performance during packet reordering
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United States of America Patent
Stats
-
Jun 10, 2008
Grant Date -
Feb 17, 2005
app pub date -
Aug 14, 2003
filing date -
Aug 14, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
TCP congestion avoidance is implemented upon retransmission of a packet and is reverted back to the original congestion state upon receipt of an early acknowledgement (ACK), indicating reordering of packets, thereby eliminating a needless restriction on TCP bandwidth. Upon receiving an ACK to a retransmitted packet, it is determined if the ACK resulted from receipt of the original reordered packet or the retransmitted packet, based on the arrival time of the ACK at the sender. If the round-trip-time (RTT) for the retransmitted packet is much lower than the average or current calculated RTT for the network link between sender and receiver, then the retransmission occurred as a result of a reordering event, and the congestion window is restored back to its value prior to the retransmission, thereby permitting the network link to continue operating at its original increased throughput.
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- Non-US Classification not provided for expired patents
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- Citation Ranking not provided for expired patents
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