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    NETWORK DISCOVERY METHOD
    2.
    发明公开
    NETWORK DISCOVERY METHOD 审中-公开

    公开(公告)号：EP4344152A1

    公开(公告)日：2024-03-27

    申请号：EP22197876.0

    申请日：2022-09-26

    申请人： Airbus Operations GmbH

    发明人： Kliem, Daniel Alexander ,  Urban, Pascal

    IPC分类号： H04L45/02 ,  H04L12/42

    摘要： A network discovery method (M), particularly for use in data networks (100) on board of an aircraft (A), comprises the steps of: sending (M1), by a master node (1) in a logical root hierarchy level (H0) of a data network (100), a discovery message including a forwarding counter to at least one first slave node (2; 6) in the first logical hierarchy level (H1) of the data network (100) via at least one child port (1Ca; 1Cb); increasing (M2), by the at least one first neighbouring slave node (2; 6) in the first logical hierarchy level (H1) of the data network (100), the forwarding counter of the received discovery message; forwarding (M3) the discovery message with the increased forwarding counter to at least one second slave node (3; 5) in the first logical hierarchy level (H1) of the data network (100); receiving (M4), by the at least one first slave node (2; 6) and the at least one second slave node (3; 5), context information from the master node (1) regarding the identity of the master node (1) and the at least one child port (1Ca; 1Cb) via which the discovery message had been sent by the master node (1); determining (M5), by the at least one first slave node (2; 6) and the at least one second slave node (3; 5), its own functional designation on the basis of the forwarding counter and the received context information from the master node (1) by comparison with a mapping table (MT); and updating (M6) the mapping table (MT) by matching the recorded functional designation in the mapping table (MT) with the identity of the at least one first slave node (2; 6) and the at least one second slave node (3; 5).

    METHOD FOR ESTABLISHING NETWORK, ETHERNET SYSTEM, AND VEHICLE
    4.
    发明公开
    METHOD FOR ESTABLISHING NETWORK, ETHERNET SYSTEM, AND VEHICLE 审中-公开

    公开(公告)号：EP4319065A1

    公开(公告)日：2024-02-07

    申请号：EP22787641.4

    申请日：2022-04-15

    申请人： Huawei Technologies Co., Ltd.

    发明人： LI, Jie

    IPC分类号： H04L12/437 ,  H04L12/42

    摘要： This application provides a network establishing method, an Ethernet system, and a vehicle. A network includes M backbone nodes. Each of the M backbone nodes includes a first backbone port and a second backbone port. The M backbone nodes form a ring network by using the first backbone ports and the second backbone ports. M is an integer greater than 2. The M backbone nodes include a first backbone node. The first backbone port of the first backbone node is in a forwarding state, and the second backbone port of the first backbone node is in a blocked state. Both the first backbone port and the second backbone port of another backbone node are in a forwarding state. The method includes: A first backbone node obtains link fault information of a ring network. The first backbone node switches a second backbone port of the first backbone node to a forwarding state based on the link fault information. According to the method in this application, response time for switching between an active link and a standby link can be shortened, fast network restructuring can be implemented, and a requirement of an in-vehicle application can be met.

    RELAY DEVICE, RELAY SYSTEM, RELAY METHOD, AND RELAY PROGRAM
    8.
    发明公开
    RELAY DEVICE, RELAY SYSTEM, RELAY METHOD, AND RELAY PROGRAM 审中-公开

    公开(公告)号：EP4084421A1

    公开(公告)日：2022-11-02

    申请号：EP20924059.7

    申请日：2020-03-13

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： KUBA, Ryohei ,  TANIGUCHI, Sachiko ,  KAWATE, Ryusuke

    IPC分类号： H04L12/42

    摘要： The conventional relay device has a problem that a traffic load on a communication device is large when an output port of a frame including a destination address, which an address table has not learned yet, is a port connected to a branch circuit, since flooding is performed on all ports except for a port that has received the frame. A relay device (21) is provided with a destination determination unit (41) to transfer, when a time clocked by a timer unit (40) to start clocking is within a set time, a frame to ports (511 and 512) connected to trunk circuits (61 and 64), and when the time clocked by the timer unit (40) exceeds the set time, to transfer the frame to the ports (511 and 512) connected to the trunk circuits (61 and 64) and a port (513) connected to a branch circuit (65), in a case wherein it is impossible for a search unit (43) to obtain from a first storage unit (33) a port number corresponding to a destination address included in the frame received, and the first storage unit (33) is cleared.

    COMPRESSED AND EFFICIENT BYZANTINE AGREEMENT
    10.
    发明公开
    COMPRESSED AND EFFICIENT BYZANTINE AGREEMENT 审中-公开

    公开(公告)号：EP3965376A1

    公开(公告)日：2022-03-09

    申请号：EP21193666.1

    申请日：2021-08-27

    申请人： Honeywell International Inc.

    发明人： HALL, Brendan ,  DRISCOLL, Kevin Raymond

    IPC分类号： H04L12/42

    摘要： In an example, a node in a network includes four ports coupled to respective nodes via respective links. Two of the ports are coupled to respective nodes via respective near links and two of the port are coupled to respective nodes via respective skip links. The node further includes a processor configured to compare first and second data streams, sourced from a self-checking pair of nodes, received in a first direction and to compare third and fourth data streams, sourced from the self-checking pair of nodes, received in a second direction. The processor is configured to relay the second data stream in the first direction and fourth data stream in the second direction and a hop count at the end of the respective data stream that is indicative of integrity of the respective data stream.