公开(公告)号：US09030929B2

公开(公告)日：2015-05-12

申请号：US13662007

申请日：2012-10-26

Applicant: ALAXALA Networks Corporation

Inventor： Shohei Fukuzaki ,  Ken Watanabe

IPC: H04L1/22 ,  G06F11/20

CPC classification number: H04L1/22 ,  G06F11/2007 ,  G06F2201/845

Abstract: Network repeaters which each implement a redundant switching function previously grasp connection states of ports of a network system by using an inquiry frame and an exchange frame. At the time when a line is broken, when actively confirming a state of a port connected to a port in which a line is broken via a downstream device, the network repeaters each grasp that which portion of the line is broken and determine whether a switchover is required. Through the process, the network repeaters each prevent a useless switchover such as switching-back immediately after the switchover, and at the same time since a mechanism of waiting for a given length of times is not required, they each perform a fast switchover.

Abstract translation: 每个实现冗余切换功能的网络中继器先前通过使用查询帧和交换帧来掌握网络系统的端口的连接状态。 当线路断开时，当通过下游设备主动确认连接到其中线路断开的端口的端口的状态时，网络中继器各自掌握线路的哪个部分被破坏并且确定是否切换 是必须的。 通过该过程，网络中继器在切换后立即避免无切换的切换，如切换回切，同时由于不需要等待一段时间的机制，因此它们各自进行快速切换。