Method, apparatus and system for two-node cluster hot backup

A network node, comprising at least one access port, a synchronizing module, a release module, an establishing module and a sending module, wherein

• the access port is configured to configure a redundancy protocol with a first network node to negotiate an active/standby relationship with an access port of the first network node;
• the synchronizing module is configured to synchronize user information with the first network node;
• the release module is configured to release a route of a network segment of a user, and the network segment of the user is the same as a network segment of a user to which a route released by the first network node belongs;
• the establishing module is configured to establish or specify a protection channel with the first network node;
• and
• the sending module is configured to perform service switching according to the redundancy protocol, and send a downstream traffic to the user according to the user information.

A system for two-node cluster hot backup, comprising a first network node and a second network node, wherein

• the first network node is configured to configure a redundancy protocol with the second network node at an access port to negotiate an active/standby relationship between each access port of the first network node and each access port of the second network node, and release a route of a network segment of a user;
• and
• the second network node is configured to configure a redundancy protocol with the first network node at an access port to negotiate an active/standby relationship between each access port of the second network node and each access port of the first network node;
• release a route of a network segment of a user, wherein the network segment of the user is the same as the network segment of the user to which the route released by the first network node belongs;
• establish or specify a protection channel with the first network node;
• synchronize user information with the first network node;
• and when the first network node has a failure, perform service switching according to the redundancy protocol, and send a downstream traffic to the user according to the user information.