| 摘要 |
<p>A data network system is disclosed, in which a Internet Protocol Number (IPN) server and a Hypertext Transfer Protocol and its Extensive Part (HTTPex) server are added to the current data network system, one home IPN server is determined for each customer in the network, each IPN server corresponds to one or more attributive HTTPex servers. The IPN server is used in the user access and the user's HTTPex service ID applications. There could be several IPN servers, which depends on the number of customers and the process ability of the IPN server. The HTTPex server is used to exchange data among customers, it can also send charging messages to the user-charging device. A method of data exchange is also disclosed, which comprising: registering one IPN for each user at first, then carrying out login with the IPN server, and exchanging user data packets of application layer through the HTTPex server. In the present invention the data are exchanged through the IPN server and the HTTPex server, therefore direct communication can be realized on the application layer among users in the network, without restricted by users special network such as the user enterprise network and the cellular network.</p> |
