| 摘要 |
PURPOSE: A duplexing system of a packet processing device in a wireless packet data network is provided to consecutively perform packet data processing of the packet processing device if the packet processing device has a failure, thereby stably supplying a communication service. CONSTITUTION: The first and second PDSNs(100,200) comprise as follows. Packet processors(110,210) perform packet data processing in accordance with overall call processing between a base station controller(3) and an IP network(5). Data memories(120,220) store predetermined access information for transceiving data with the base station controller(3) and the IP network(5). Session information storages(130,230) store session information including call processing information, wireless terminal information, destination information, and path information. Other session information storages(140,240) store session information of the other PDSNs(200,100) grouped with the corresponding PDSNs(100,200). |
