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    COMMUNICATION SYSTEM, COMPUTER, COMMUNICATION METHOD, AND PROGRAM
    1.
    发明公开
    COMMUNICATION SYSTEM, COMPUTER, COMMUNICATION METHOD, AND PROGRAM 审中-公开

    公开(公告)号：US20240357008A1

    公开(公告)日：2024-10-24

    申请号：US18687581

    申请日：2021-09-06

    Applicant: Nippon Telegraph and Telephone Corporation

    Inventor： Toru MANO ,  Junki ICHIKAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA ,  Tomoya HIBI ,  Kiwami INOUE

    IPC: H04L67/1097

    CPC classification number: H04L67/1097

    Abstract: This communication system comprises a plurality of computers 1, 2 that each comprise: an optical transport path control unit 14 that adjusts the number of optical transport paths between the computer itself and a connection target computer and that sets the adjusted number of optical transport paths; a remote direct memory access (RDMA) communication unit 11 that, in accordance with the number of optical transport paths 4 announced from the optical transport path control unit 14, chunks data that is to be transferred to the connection target computer; and an RDMA control unit 16 that sets RDMA communication paths the number of which is the same as the number of the optical transport paths 4 pursuant to an instruction from the RDMA communication unit 11.

    COMMUNICATION SYSTEM, COMPUTING MACHINE, COMMUNICATION METHOD AND PROGRAM
    3.
    发明申请
    COMMUNICATION SYSTEM, COMPUTING MACHINE, COMMUNICATION METHOD AND PROGRAM 有权

    公开(公告)号：US20250039262A1

    公开(公告)日：2025-01-30

    申请号：US18688109

    申请日：2021-09-02

    Applicant: Nippon Telegraph and Telephone Corporation

    Inventor： Kiwami INOUE ,  Junki ICHIKAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki Nishizawa ,  Toru MANO ,  Tomoya HIBI

    IPC: H04L67/1097

    Abstract: A communication system includes a plurality of computing machines 1 and 2 connected to an optical network, in which the optical network includes a main signal communication path 4 and a control communication path 3. Each of the computing machines 1 and 2 includes a control unit 14 that sets a remote direct memory access (RDMA) communication path, and a communication unit 11 that transmits a setting request including setting information of the RDMA communication path set by the control unit 14 and setting information for setting the main signal communication path 4 to a computing machine of an access destination via the control communication path 3; and a main signal transmitting/receiving unit 16 that establishes the main signal communication path 4 based on the setting information of the main signal communication path 4.

    DEVICE, METHOD AND PROGRAM FOR GENERATING NETWORK TOPOLOGIES
    4.
    发明申请
    DEVICE, METHOD AND PROGRAM FOR GENERATING NETWORK TOPOLOGIES 有权

    公开(公告)号：US20230013105A1

    公开(公告)日：2023-01-19

    申请号：US17781431

    申请日：2019-12-05

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Kazuya ANAZAWA ,  Toru MANO ,  Takeru INOUE ,  Atsushi TANIGUCHI ,  Kohei MIZUNO

    IPC: H04L41/12 ,  H04L41/0816 ,  H04L41/0896

    Abstract: It is an objective of the present disclosure to reduce computational complexity for obtaining a network topology configuration capable of efficiently accommodating a plurality of traffic demands assumed between nodes present in a network.
    A device of the present disclosure includes: a computation traffic generation unit that creates a traffic demand matrix whose elements are values individually obtained by demands between nodes present in a target network area from a plurality of traffic demand matrices created based on predicted traffic demands between the nodes; and a network topology generation unit that generates a network topology based on the traffic demand matrix generated by the computation traffic generation unit and port information of the nodes in the network area.

    NETWORK CONFIGURATION ENUMERATION DEVICE, NETWORK CONFIGURATION ENUMERATION METHOD AND NETWORK CONFIGURATION ENUMERATION PROGRAM
    5.
    发明申请
    NETWORK CONFIGURATION ENUMERATION DEVICE, NETWORK CONFIGURATION ENUMERATION METHOD AND NETWORK CONFIGURATION ENUMERATION PROGRAM 有权

    公开(公告)号：US20220303645A1

    公开(公告)日：2022-09-22

    申请号：US17637042

    申请日：2019-09-25

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Toru MANO ,  Takeru INOUE

    IPC: H04Q1/02 ,  G01R31/60

    Abstract: An object of the present disclosure is to propose a technique to enumerate intermediate configurations at high speeds. A configuration enumeration device 10 according to the present disclosure enumerates a network configuration in an input layer 21, an intermediate layer 22, and an output layer 23 that minimizes the number of mechanical patch panels provided in mechanical patch panels, by using a-quasi-nonblocking configurations, where a being 0 indicates a rearrangeably nonblocking configuration and α being 1 indicates a strictly nonblocking configuration, for 0≤α≤1, when a minimum value C of wiring capacity of mechanical patch panels having the input layer 21, the intermediate layer 22, and the output layer 23 is obtained.

    COMMUNICATION SYSTEM, COMPUTER, COMMUNICATION METHOD AND PROGRAM
    6.
    发明申请
    COMMUNICATION SYSTEM, COMPUTER, COMMUNICATION METHOD AND PROGRAM 有权

    公开(公告)号：US20240385986A1

    公开(公告)日：2024-11-21

    申请号：US18687875

    申请日：2021-09-02

    Applicant: Nippon Telegraph and Telephone Corporation

    Inventor： Tomoya HIBI ,  Junki ICHIKAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA ,  Kiwami INOUE ,  Toru MANO

    IPC: G06F15/173 ,  G06F21/60

    Abstract: A communication system includes a plurality of computing machines connected to an optical network, in which the optical network includes a main signal communication path and a control communication path. Each of the computing machines and includes an RDMA communication unit that performs transmission of setting information for setting the main signal communication path to a computing machine of an access destination via the control communication path; and a main signal transmitting/receiving unit that establishes the main signal communication path based on the setting information. The RDMA communication unit gives an instruction for setting of the RDMA communication path in parallel with the transmission of the setting information. The computing machine further includes an RDMA control unit that secures a memory area for RDMA communication and transmits setting information including the memory area to the computing machine of the access destination.

    COMMUNICATION SYSTEM, INTERMEDIATE APPARATUS, COMMUNICATION METHOD, AND PROGRAM
    10.
    发明申请
    COMMUNICATION SYSTEM, INTERMEDIATE APPARATUS, COMMUNICATION METHOD, AND PROGRAM 有权

    公开(公告)号：US20240414092A1

    公开(公告)日：2024-12-12

    申请号：US18697928

    申请日：2021-10-08

    Applicant: Nippon Telegraph and Telephone Corporation

    Inventor： Tomoya HIBI ,  Junki ICHIKAWA ,  Toru MANO ,  Kazuya ANAZAWA ,  Yukio TSUKISHIMA ,  Kenji SHIMIZU ,  Hideki NISHIZAWA ,  Koichi TAKASUGI

    IPC: H04L47/30 ,  H04L49/9005

    Abstract: A communication system includes a first intermediate device 10A and a second intermediate device 10B, in which the first intermediate device includes a buffer management unit 15 that determines a buffer size based on delay information and secures a buffer, a transfer unit 11 that, when data to be transferred to a second device 50 is smaller than a credit of the second intermediate device, transfers a request including the data to the second intermediate device, and a generation unit 12A that generates a pseudo-response to the request and returns the pseudo-response to the first device, and the second intermediate device includes a buffer management unit 15 that determines a buffer size based on the delay information and secures a buffer, a transfer unit 11 that transfers the request to the second device and stores the request in the buffer to update the credit of its own device, and a discarding unit 12B that discards a response received from the second device, deletes the request stored in the buffer, and updates the credit.

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