Ethernet interface protection method and network side equipment

Abstract

An Ethernet interface protection method and a network side device. The method comprises: a network side device acquiring a backup route of a protected interface; establishing an active and standby relationship entry of the protected interface and the backup route; establishing FRR group information according to the active and standby relationship entry; determining, according to the FRR group information, whether directly connected route forwarding entry information exists on the protected interface; if the directly connected route forwarding entry information exists, finding all directly connected route forwarding entry information on the protected interface according to index information of the protected interface of the FRR group information, and establishing an association relationship between directly connected routes and FRR indexes of the FRR group information; and if the directly connected route forwarding entry information does not exist, writing forwarding entry information corresponding to an FRR backup route and the directly connected route forwarding entry information into a hardware forwarding table. The method can reduce a time overhead of packet detection, thereby reducing the packet loss time and improving the expansibility and compatibility.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an Ethernet interface protection method and network side equipment. Background technique [0002] Based on the requirements of rapid network development, when any node or route in the network fails, the service switching requirement is less than 50ms. For the routing between PE (Provider Edge, service provider edge device) and CE (Customer Edge, user-side edge device), VPN FRR (Virtual Private Network Fast Re-route, virtual private network-based fast rerouting) technology is mainly used to solve the problem. In the event of a node or route failure, the route can be quickly switched. [0003] The process of VPN FRR technology is: establish an end-to-end service between PE (or CE) and PE (or CE), and pre-configure two end-to-end available routes, select one as the main route, and the other as the backup routing. If the detection mechanism is not configured, protocol conver...

AI Technical Summary

Problems solved by technology

However, in the prior art, in the case of cross-hop and multi-device routing, the time overhead for transmitting detection messages across hops and multi-device is large, the switching performance is not high, and the detection needs to be supported by the interconnected device, resulting in edge devices (network side equipment) poor scalability and compatibility

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