PROTOCOL IMPLEMENTATION SYSTEM IN GGSN AND METHOD THEREOF

摘要

PURPOSE: A protocol implementation system in GGSN(Gateway GPRS Supporting Node) and a method thereof are provided to simplify an implementation structure by installing a virtual driver below an IP layer. CONSTITUTION: A protocol implementation system in GGSN includes an IP layer and a virtual driver(100). The IP layer is located between a GPRS(General Packet Radio Service) network and a public data network in order to perform a routing operation therebetween. In addition, the IP layer is used for performing a routing operation between protocols of a first and a second network layer and a protocol of a transmission layer in the GPRS network. The virtual driver is located below the IP layer in order to be connected to a protocol of GPRS tunneling. The virtual driver is operated as a sub-interface of the IP layer.