| 摘要 |
Provided are a method, device and system for processing loops in an access network. The access network includes a plurality of nodes, with each node corresponding to a device layer (DevLayer) and a device network domain identifier (DevNetID). The method includes the steps of: receiving a detection message from a first port, with the detection message carrying a network domain identifier (BaseNetID) and the DevNetID and DevLayer of the node that the detection message passes; acquiring the DevLayer of the nodes with the same DevNetID and BaseNetID from the detection message and selecting the maximum DevLayer as the reference DevLayer from the acquired DevLayers; comparing the size of the DevLayer of the present node with that of the reference DevLayer, and blocking or closing the first port when the DevLayer of the present node is greater than the reference DevLayer. |
