Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2006-04-25
2006-04-25
Ton, Dang (Department: 2666)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S235000, C714S746000
Reexamination Certificate
active
07035214
ABSTRACT:
A system and method for transmitting data in a data communications network, using a transmission control protocol, to provide reduced acknowledgment control traffic, error recovery and congestion control. A communications link is established between a transmitter and a receiver. Setting the communications link includes setting a network congestion window to an initial length. A sequence, or stream, of data packets is sent from the transmitter to the receiver. The receiver detects any missing packets, by examining the sequence numbers of the incoming packets, and sends negative acknowledgments, generally no more than four, to the transmitter identifying the missing data packet. When the transmitter receives a negative acknowledgment, it decreases the length of the congestion window, and re-transmits the missing packet. Detection and use of round-trip time, re-transmission time-out are provided.
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Hadi Salim Jamal
Nandy Biswajit B.
Seddigh Nabil N.
Mehra Inder Pal
Nortel Networks Limited
Ton Dang
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