Research for service fastly setuping and restoration in mesh network

With ASON network scale enlarging, many ASON networks often meet trouble for fastly setuping a service and restoration even in current ring network. It would be more serious trouble in mesh network. Firstly, the two part main time factor is proposed. Then the current methods are introduced to accelerate the speed for setuping a service. The first method is to keep network topology in every node by flooding network information. This method is very available to small network. The second method is according ITU-T recommendation G.8080 which suggests to divide a big network to many different routing areas (RA). This method can gets the level abstract of a ASON network. Secondly, a new method is proposed which is base on grid cell for mesh ASON network. This method divides the mesh network to many levels, and each level is one or more cells which has a CDCN node in a grid cell. The procedure for setuping a service is analysed by grid cell method. Thirdly, a parallel increment configuration method is put forward to minish card configuration time. Lastly, service fast restoration is analysed.