Data transmission method, wap gateway and data transmission system

Abstract

The embodiment of the invention discloses a data transmission method, a wap gateway and a data transmission system. The method provided by the embodiment of the invention comprises the steps as follows: the first wap gateway receives a terminal request message sent by a network element via a first MPLA VPN connection, and first Radius record information corresponding to the terminal request message is acquired by processing the terminal request message, and is synchronized to the second wap gateway which is mutually backup to the first wap gateway. In the method provided by the embodiment of the invention, on the one hand, the VPN connection can fully utilize network node bandwidth to reduce network congestion, so as to be more suitable for large flow processing; on the other hand, when disaster-tolerance switching is performing, operation is no longer related to network element equipment, the first gateway synchronizes the first Radius record information to the second gateway to achieve backup, so that when the first gateway is switched to the second gateway, the operation of forcibly making a user be offline and online again to register is not needed, and disaster-tolerance switching efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data transmission method, a WAP gateway and a system. Background technique [0002] In the 2 / 3G era, the WAP (Wireless Application Protocol) gateway is an important way for mobile terminals to access the Internet. In the 4G era, major operators also need to realize traffic aggregation and traffic value mining based on integrated gateways. The current WAP gateway or integrated gateway networking method is mainly based on the existing backbone network such as CMNET, and realizes the connection between GGSN (Gateway GPRSSupport Node) and other network elements and the gateway through the GRE tunnel. figure 1 It is a schematic diagram of a network architecture for interconnection through a GRE tunnel in the prior art, such as figure 1 As shown, the network architecture includes terminal 101, GGSN 102, wap gateway 103 and wap gateway 104, wherein GGSN 102 realizes data commun...

AI Technical Summary

Problems solved by technology

When a set of GGSN or PGW (PDN GateWay, PDN gateway), especially the 4G PGW network element traffic is too large, it will lead to unbalanced CMNET backbone network load, and overload of some links, resulting in increased network delay and packet loss rate rise etc.

Moreover, since the GRE tunnel and GRE interface addresses are fixedly allocated, it is impossible to dynamically adjust the network load

On the other hand, if figure 1 As shown, in disaster recovery, it is necessary to delete the existing GRE tunnel on the GGSN side and point the GRE tunnel to the wap gateway disaster recovery node. Since the GRE information on the GGSN side needs to be modified one by one, the disaster recovery operation is more complicated. After the disaster switchover, the users can use it normally, and the GGSN side also needs to force the online users to go offline and then go online again, resulting in low switching efficiency

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