Switchover method and device for main equipment and standby equipment

Abstract

The invention relates to a switchover method and device for main equipment and standby equipment. The switchover method for the main equipment and the standby equipment comprises the following steps that when access equipment accesses the network through the main equipment, the interface directly connected with the access equipment or transmission equipment on the main equipment is detected to determine whether the link from the access equipment to the main equipment breaks down, and when the link from the access equipment to the main equipment breaks down, a redundancy set with a routing function is informed to carry out switchover between the main equipment and the standby equipment so that the access equipment can access the network through the standby equipment before switchover.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method and device for switching between master and backup equipment. Background technique [0002] At present, the development of the network is changing with each passing day. With the rapid popularization of the network and the deepening of the application, various value-added services have been widely deployed on the network, and the network bandwidth has also increased exponentially. A short-term interruption of the network may affect a large number of services, causing huge loss. As the basic network that carries the business, its reliability has become the focus of increasing attention. Virtual Router Redundancy Protocol (VRRP) is such a reliability technology, which can implement redundant backup of network devices and improve network reliability. [0003] When using VRRP technology in a real network, such as figure 1 As shown, usually there may be one or more ...

AI Technical Summary

Problems solved by technology

When other segment links (such as figure 1 When the B-segment link in the VRRP group fails, the VRRP redundancy group 110 cannot detect it, that is, it cannot switch between the active and standby devices

[0004] In the existing technology, Ethernet-Operation Administration and Maintenance (ETH-OAM) can be deployed on all devices to solve the problem that the VRRP redundancy group cannot perceive the link failure between two transmission devices. question

ETH-OAM configuration is relatively complicated. If there are many access devices connected to the VRRP redundancy group 110 through the transmission device 130, the configuration amount will be large, and more OAM signaling will occupy the normal bandwidth of the device.

In addition, this method requires that all devices must support ETH-OAM, and the devices must be seamlessly interconnected. If a certain device on the link does not support ETH-OAM, the VRRP redundancy group cannot perceive the connection The link failure between the ingress device 120 and the transmission device 130 or between two transmission devices makes it impossible to switch between the active and standby devices

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