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    METHOD AND APPARATUS FOR PREVENTING LOOPS IN A NETWORK TOPOLOGY
    6.
    发明公开
    METHOD AND APPARATUS FOR PREVENTING LOOPS IN A NETWORK TOPOLOGY 审中-公开

    公开(公告)号：EP3599745A1

    公开(公告)日：2020-01-29

    申请号：EP19179290.2

    申请日：2019-06-10

    申请人： Telia Company AB

    发明人： TAMIZKAR, Babak

    IPC分类号： H04L12/705 ,  H04L12/751 ,  H04L12/721

    摘要： The embodiments herein relate to a method and a network switch device (800) for preventing the occurrence of loops in a network topology comprising a plurality of network switch devices, each switch device is assigned a unique SW-ID. The method comprises: exchanging each SW-ID between all switch devices; building, for each switch device, a routing table. The method further comprising: when receiving (401), at a first switch device, a data frame, from a second switch device (302), that includes an SS-ID, assigned to the second switch device (302); and the data frame is received at a port of the first switch device; if, according to the routing table of the first switch device, the assigned SW-ID for this port is different from the SS-ID included in the data frame, discarding (403) the data frame; otherwise, processing (404) forward the data frame.