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Flow control

  • US 20030149715A1
  • Filed: 04/08/2003
  • Published: 08/07/2003
  • Est. Priority Date: 07/24/2000
  • Status: Abandoned Application
First Claim
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1. A data communication node for operation in a communication path between a transmitter of datagrams and a receiver of datagrams under a protocol wherein the transmission of datagrams by the transmitter is dependant on it receiving an acknowledgement message for a previously transmitted datagram, the node comprising:

  • detection apparatus for detecting communications in the path;

    an acknowledgement generator capable of generating acknowledgement messages for datagrams and transmitting those messages to the transmitter; and

    flow interruption apparatus capable of interrupting communications in the path;

    the node being capable of operating in at least two of the following modes;

    a first mode in which it does not interrupt communications in the path;

    a second mode in which it transmits acknowledgement messages for a datagrams succeeding the latest datagram detected at the node; and

    a third mode in which it delays the communication of acknowledgement messages to the transmitter.

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