TRANSMISSION PATH CONTROL DEVICE

摘要

A transmission path control device is connected to a management server and a router device located on the same area as the transmission path control device. The transmission path control device determines whether a corresponding router device has a port directed to an end area when receiving a virtual lease line (VLL) establishing request including a start area and the end area of the VLL. If not, the transmission path control device transmits the VLL establishing request to a default transmission path control device. If yes, the transmission path control device determines which router devices are transmission nodes constituting the VLL and determines which ports are ports to be connected. The transmission path control device further connect the ports used to connect one by one, thus to establish the VLL.

主权项

1. A transmission path control device comprising:
a communication unit configured to connect to a router device located in a same area as the transmission path control device and other transmission path control devices located in other areas via corresponding networks; a storage unit configured to store a port topology file of the router device connected to the transmission path control device and a plurality of modules which are collections of instructions, the port topology file comprising different areas directed by different ports of the router device; and at least one processor configured to execute the plurality of modules, the plurality of modules comprising: a path calculating module configured to determine whether there is one port of the router device connected to the transmission path control device that is directed to an end area according to the port topology file of the router device when the transmission path control device receives a virtual lease line (VLL) establishing request comprising a VLL identifier and a start area and the end area of the VLL, wherein if no port of the router device is directed to the end area, the path calculating module transmits the VLL establishing request to a default transmission path control device, if one port of the router device is directed to the end area, the path calculating module determines which router devices are transmission nodes constituting the VLL and determines which ports are ports to be connected to another port of the router devices determined as the transmission nodes constituting the VLL, and generates VLL establishing information comprising connection relationships of the router device determined as the transmission nodes of the VLL and the ports to be connected; and a path establishing module configured to label the ports to be connected by using the VLL identifier, and connect the ports labeled with the VLL identifier one by one to establish the VLL.