METHOD, SYSTEM AND DEVICE FOR PROCESSING LAYER-2 SERVICE IN NETWORK

摘要

The present invention provides a method, a system and a device for processing a layer-2 service in a network. The network comprises a user edge device and a switching device. A first port of the user edge device is connected to a third port of the switching device; and a second port of the user edge device is connected to a fourth port of the switching device. The method comprises: setting a link connected to the first port to be a main link, and blocking the second port; and when the link connected to the first port is detected to have a fault, activating/opening the second port, and sending a message carrying monitoring information of the user edge device to the switching device through the second port, so that the switching device establishes a correspondence between the monitoring information and the fourth port according to the message.