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    2.
    发明专利
    未知

    公开(公告)号：DE69022942T2

    公开(公告)日：1996-05-30

    申请号：DE69022942

    申请日：1990-08-22

    Applicant: IBM

    Inventor： BARZILAI TSIPORA PIRCHA ,  CHEN MON-SONG ,  KADABA BHARATH KUMAR ,  KAPLAN MARC ADAM

    IPC: H04L12/56

    Abstract: A method for reducing transmission polling overhead of packets within a node of a communications network. This invention involves setting session ready bits in the line adaptor modules of the node. These bits are then used to inform a given module as to which modules of the node have packets that are bound for the given module. A given module of the node will not transmit a pacing message (YT control message) to another module unless it knows that the other module has a packet to transmit to the given module.

    3.
    发明专利
    未知

    公开(公告)号：DE69022942D1

    公开(公告)日：1995-11-16

    申请号：DE69022942

    申请日：1990-08-22

    Applicant: IBM

    Inventor： BARZILAI TSIPORA PIRCHA ,  CHEN MON-SONG ,  KADABA BHARATH KUMAR ,  KAPLAN MARC ADAM

    IPC: H04L12/56

    Abstract: A method for reducing transmission polling overhead of packets within a node of a communications network. This invention involves setting session ready bits in the line adaptor modules of the node. These bits are then used to inform a given module as to which modules of the node have packets that are bound for the given module. A given module of the node will not transmit a pacing message (YT control message) to another module unless it knows that the other module has a packet to transmit to the given module.

    4.
    发明专利
    未知

    公开(公告)号：DE68925958T2

    公开(公告)日：1996-11-14

    申请号：DE68925958

    申请日：1989-12-11

    Applicant: IBM

    Inventor： CHEN MON-SONG ,  GOLDSTEIN BARRY CLIFFORD ,  MELEIS HANFY EL SAYED ,  ZUMBO DOMINICK ANTHONY

    IPC: H04L29/08 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

    Abstract: A communication system provides high speed transmission of data over a link, such as a fiber optic link, between a first terminal and a second terminal. The architecture and protocol permits the use of dedicated hardware such as state machines constructed of programmable array logic units, to synchronize the transmission and reception of data packets and the retransmission of designated ones of these packets in the event of a faulty transmission. Packets to be transmitted and received are stored in an array of frames in sub-windows of a memory storage window in each of the terminals, the frame number being equal to the sequence number of the data packet. By embedding sequence and status bits in each packet within control words and bits appended to each packet, the state machine in each terminal can readily track the progress of each packet so as to request acknowledgement of error-free receipt, to send an acknowledgement, to request a retransmission of a packet designated by its serial number, and to distinguish a retransmitted packet from an original packet transmitted with error.

    5.
    发明专利
    未知

    公开(公告)号：DE68925958D1

    公开(公告)日：1996-04-18

    申请号：DE68925958

    申请日：1989-12-11

    Applicant: IBM

    Inventor： CHEN MON-SONG ,  GOLDSTEIN BARRY CLIFFORD ,  MELEIS HANFY EL SAYED ,  ZUMBO DOMINICK ANTHONY

    IPC: H04L29/08 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

    Abstract: A communication system provides high speed transmission of data over a link, such as a fiber optic link, between a first terminal and a second terminal. The architecture and protocol permits the use of dedicated hardware such as state machines constructed of programmable array logic units, to synchronize the transmission and reception of data packets and the retransmission of designated ones of these packets in the event of a faulty transmission. Packets to be transmitted and received are stored in an array of frames in sub-windows of a memory storage window in each of the terminals, the frame number being equal to the sequence number of the data packet. By embedding sequence and status bits in each packet within control words and bits appended to each packet, the state machine in each terminal can readily track the progress of each packet so as to request acknowledgement of error-free receipt, to send an acknowledgement, to request a retransmission of a packet designated by its serial number, and to distinguish a retransmitted packet from an original packet transmitted with error.

    6.
    发明专利
    未知

    公开(公告)号：DE69126640T2

    公开(公告)日：1998-01-08

    申请号：DE69126640

    申请日：1991-03-21

    Applicant: IBM

    Inventor： BARZILAI TSIPORA PIRCHA ,  CHEN MON-SONG ,  KADABA BHARATH KUMAR ,  KAPLAN MARC ADAM

    IPC: H04L12/56

    Abstract: A method and apparatus for dynamically adjusting the window size in a session between a sender and a receiver over a link of a packet transmission network. This invention discloses a dynamic window adjustment scheme to determine the optimum window size with a minimum number of iterations. This invention also covers a method and apparatus for sharing pacing credits among a number of sessions during which packets are transmitted over the network. With this invention sessions having no packets to transmit will send pacing credits to a shared credit pool (SCP) while pacing credits will be distributed to those session having packets to transmit.

    8.
    发明专利
    未知

    公开(公告)号：DE69126640D1

    公开(公告)日：1997-07-31

    申请号：DE69126640

    申请日：1991-03-21

    Applicant: IBM

    Inventor： BARZILAI TSIPORA PIRCHA ,  CHEN MON-SONG ,  KADABA BHARATH KUMAR ,  KAPLAN MARC ADAM

    IPC: H04L12/56

    Abstract: A method and apparatus for dynamically adjusting the window size in a session between a sender and a receiver over a link of a packet transmission network. This invention discloses a dynamic window adjustment scheme to determine the optimum window size with a minimum number of iterations. This invention also covers a method and apparatus for sharing pacing credits among a number of sessions during which packets are transmitted over the network. With this invention sessions having no packets to transmit will send pacing credits to a shared credit pool (SCP) while pacing credits will be distributed to those session having packets to transmit.

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