System and method for accessing client end to next network

Abstract

The invention discloses a method for accessing a user end to next generation network, the method comprises the following steps: hypothesizing a U interface card into an Ethernet network card, receiving Ethernet frame which is transferred from a TCP / IP protocol layer, step S104, removing Ethernet frame head and exchanging the Ethernet frame head into an IP data packet, and analyzing IP data packettypes, step S106, accessing getaway and receiving data packet from high-grade data link control 2B+D channel, checking the IP data packet, exchanging network address for the IP data packet which is checked, and step S 108, packing the exchanged IP data packet into an Ethernet frame format and sending to soft exchanging core network server. The invention also discloses a system which accesses a user side to a next generation network. The invention achieves the safe and stable transmission of information in different networks under the circumstance without needing to modify any user end application program which is based on TCP / IP communication, which reduces the probability of core switching network service period which is attacked, and lowers complexity of important customer system network building.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a system for connecting a client to a next-generation network. Background technique [0002] Softswitch (SS) technology based on TCP / IP is widely used as the core switching mode of NGN (Next Generation Network) network. In the NGN network, for some big customers such as large enterprises and hotels, the communication network must not only provide traditional voice services, but also be able to provide some special services such as attendant consoles and billing terminals. These characteristic services require that the communication network can provide a data channel to connect the server of the core switching network and the client outside the switching core network. [0003] It is a common practice to connect the core switching network server and the client of the key customer through the Internet (internet), and the client sends control messages to interact with the serv...

AI Technical Summary

Problems solved by technology

There are several problems in this approach: first, the client computer must be required to connect to the Internet network

Second, the core server must open a listening port on the Internet network for client connections, which will cause hidden dangers to the security of the server

Third, the Internet network that cannot be guaranteed by the quality of service will inevitably cause the connection quality between the client and the core switching network to be unable to be guaranteed

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