Patent ID: 7369551
Filing Date: 2008-05-06
Classification: H04L

Abstract:
1. A system accessing and transmitting different data frames in a digital transmission network for accessing and transmitting different data frames, comprising: at least one subscriber network interface, which is used to couple with a subscriber's network; and/or at least one inter-network interface, which is used to couple with the digital transmission network to transfer data frames; and a data converting device, which is coupled with the at least one subscriber network interface and the at least one inter-network interface to convert formats of the data frames between the at least one subscriber network interface, formats of the data frames between the at least one inter-network interface, or formats of the data frames between the at least one inter-network interface and the at least one subscriber network interface; wherein the data converting device comprises: a virtual private device, an interface device and a processing device, the virtual private device exchanging data frames between the at least one subscriber network interface and the at least one inter-network interface via the interface device, and the virtual private device comprises an inter-device interface, coupled with the processing device and adapted for inputting and outputting data frames; a virtual private processing unit, coupled with the inter-device interface and adapted for detecting control messages and converging or diverging the data frames other than the control messages; a rule database, coupled with the virtual private processing unit and adapted for storing rules corresponding to the data frames, according to which the data frames are processed; and a control interface unit, coupled with the rule database and the virtual private processing unit and adapted for controlling the virtual private processing unit and the rule database.