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    PACKET TRANSMISSION NETWORK
    1.
    发明专利
    PACKET TRANSMISSION NETWORK 失效

    公开(公告)号：JPH1093624A

    公开(公告)日：1998-04-10

    申请号：JP21373497

    申请日：1997-08-07

    Applicant: IBM

    Inventor： MARIN GERALD ARNOLD ,  HUYNH LAP T ,  VAN VU KEN ,  ONVURAL RAIF O ,  GUN LEVENT ,  LING BOUCHUNG

    IPC: H04L12/56

    Abstract: PROBLEM TO BE SOLVED: To provide an extended adaptive speed base congestion control system for a packet transmission network which doesn't use a relative network queuing speed but uses an absolute network queuing speed as a measure of a congestion of a system. SOLUTION: Test transmission executed only after the latest out of a prescribed minimum time, reception of an acknowledgment from the preceding test, and transmission of a minimum data burst is included in other features of this congestion control system. This congestion control system gives less reduction of the speed in the case of a low speed and gives more reduction of the speed in the case of a high speed. A logarithmic speed control function presents this capability. All values in a speed reference table are changed in response to the excessive speed variance to realize speed damping. Finally, an available band width is fairly shared as a beginning point for start or exit from a defined speed damping area.

    2.
    发明专利
    未知

    公开(公告)号：DE69327692D1

    公开(公告)日：2000-03-02

    申请号：DE69327692

    申请日：1993-08-24

    Applicant: IBM

    Inventor： AHMADI HAMID ,  GUERIN ROCH A ,  DERBY JEFFREY HASKELL ,  GUN LEVENT ,  MARIN GERALD ARNOLD ,  NAGHSHINEH MAMOUD ,  SOHRABY KHOSROW

    IPC: H04L29/06 ,  H04L12/56

    Abstract: A congestion control system for packet communications networks in which access to the network is controlled to prevent such congestion. Packets within the pre-specified statistical description of each packet source are marked as high priority ("green" packets) while packets exceeding the pre-specified characteristics are marked with a lower priority ("red" packets). The overall red packet rate is limited to prevent red packet saturation of the network. The introduction of red packets into the network is subjected to a degree of hysteresis to provide better interaction with higher layer error recovery protocols. The amount of hysteresis introduced into the red packet marking can be fixed or varied, depending on the statistics of the incoming data packets at the entry point to the network.

    4.
    发明专利
    未知

    公开(公告)号：DE69327692T2

    公开(公告)日：2000-07-06

    申请号：DE69327692

    申请日：1993-08-24

    Applicant: IBM

    Inventor： AHMADI HAMID ,  GUERIN ROCH A ,  DERBY JEFFREY HASKELL ,  GUN LEVENT ,  MARIN GERALD ARNOLD ,  NAGHSHINEH MAMOUD ,  SOHRABY KHOSROW

    IPC: H04L29/06 ,  H04L12/56

    Abstract: A congestion control system for packet communications networks in which access to the network is controlled to prevent such congestion. Packets within the pre-specified statistical description of each packet source are marked as high priority ("green" packets) while packets exceeding the pre-specified characteristics are marked with a lower priority ("red" packets). The overall red packet rate is limited to prevent red packet saturation of the network. The introduction of red packets into the network is subjected to a degree of hysteresis to provide better interaction with higher layer error recovery protocols. The amount of hysteresis introduced into the red packet marking can be fixed or varied, depending on the statistics of the incoming data packets at the entry point to the network.

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