Ethernet loop device with backup and implementation method for master device backup

Abstract

The utility model discloses an Ethernet ring network device with backup files, comprising a main device and two slave devices adjacent to each other. A backup domain is arranged in the Ethernet ring network; one of the two slave devices works as a main device for backup in the backup domain, and the other slave device works as a slave device for backup in the backup domain. Through a link arranged between the main device for backup and the slave device for backup, the main device for backup, the slave device for backup and the main device form a ring network in the backup domain. An uplink port is arranged on the main device for backup. The utility model also discloses a backup method for the main device in the Ethernet ring network. The utility model has the advantages of adding a main device for backup based on the prior art of the Ethernet ring network, and adding a backup domain to monitor the state of the main domain, thus achieving the valid backup for the main device in the Ethernet ring network.

Description

technical field [0001] The invention relates to a main equipment protection and backup technology in the application of an Ethernet ring network, in particular to an Ethernet ring network equipment equipped with a backup and a method for realizing the backup of the main equipment. Background technique [0002] In the current Ethernet ring network environment, a ring is composed of a master device and multiple slave devices, and service data packets and ring control data packets are simultaneously transmitted in the Ethernet ring network. Under normal circumstances, the main device on the ring network will block the backup port on one side to cut off the ring and make the network a chain to ensure the normal forwarding of services. [0003] When the loop is normally allowed, the master device knows the occurrence of a fault on the network in two ways: when the service data packet is forwarded on the chain network, the loop control packet is still transmitted on the ring, whic...

AI Technical Summary

Problems solved by technology

If the master device fails and cannot forward normal services on the ring network, the uplink of the entire ring network will fail, causing service interruption; or the software of the master device is When the network control function fails, if there is a link failure event of the slave device, the original switch chain will be broken, which will directly affect the forwarding failure of the traffic under the slave device to the uplink port of the ring network, causing some business interruptions

Both of these situations will reduce the robustness of the Ethernet ring network and affect the normal development of services

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