公开(公告)号：US20160134467A1

公开(公告)日：2016-05-12

申请号：US14997865

申请日：2016-01-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chenglin Miao ,  Qiang Zhang ,  Shuangquan Wen ,  Fanlu Meng ,  Wei Chen

IPC: H04L12/24

CPC classification number: H04L41/0654 ,  H04L1/22 ,  H04L45/22 ,  H04L45/28 ,  H04L69/40

Abstract: The present application relates to a method and an apparatus for switching between a master device and a backup device. The method for switching between a master device and a backup device includes: when an access device accesses a network by using the master device, detecting an interface that is on the master device and directly connected to the access device or a transmission device, so as to determine whether a link between the access device and the master device fails; and when it is determined that the link between the access device and the master device fails, instructing a redundancy group with a routing function to perform switching between the master device and the backup device, so that the access device accesses the network by using the backup device that is before the switching.

Abstract translation: 本申请涉及用于在主设备和备用设备之间切换的方法和设备。 主设备与备用设备之间切换的方法包括：当接入设备通过使用主设备接入网络时，检测主设备上的接口并直接连接到接入设备或传输设备，以便 确定接入设备与主设备之间的链路是否失败; 当确定接入设备与主设备之间的链路故障时，指示具有路由功能的冗余组在主设备与备用设备之间进行切换，使得接入设备通过使用备份接入网络 在切换之前的设备。

公开(公告)号：US20170155577A1

公开(公告)日：2017-06-01

申请号：US15429812

申请日：2017-02-10

Applicant: Huawei technologies Co., Ltd.

Inventor： Chengsong Zhang ,  Qiang Zhang ,  Shuangquan Wen

IPC: H04L12/703 ,  H04L12/707 ,  H04L12/46

CPC classification number: H04L45/28 ,  H04L12/4641 ,  H04L43/0817 ,  H04L43/10 ,  H04L45/22 ,  H04L45/586

Abstract: A VRRP fault detection method is applied to a VRRP group including one primary router and one or more secondary routers. The method includes: sending, by the primary router and the secondary router, link detection packets having an echo response function, where a destination address of the link detection packet is a virtual address of the VRRP group. The method also includes determining, by the primary router and the secondary router, whether response packets corresponding to the link detection packets sent by the primary router and the secondary router are received within a predetermined time, and if the primary router and/or the secondary router does not receive the response packet within the predetermined time, determining that the primary router is faulty.