Data transmission system, data transmission method and data transmission device

Abstract

The invention provides a data transmission system, a data transmission method and a data transmission device, and the method comprises the steps that a first subnet server is used for building a communication channel with a second subnet server through a session boundary controller and an exchange network after the first subnet server determines that the safety authentication of a verification account allocated to the exchange network is passed, a data acquisition request is sent to the second subnet server, and file data fed back by the second subnet server is received by the session boundary controller and the switching network; a session boundary controller is used for carrying out transceiving and security authentication on the data acquisition request and the file data; an exchange network is used for transmitting the data acquisition request and the file data and performing security verification on the verification account; and a second subnet server is used for receiving a data acquisition request transmitted through the session boundary controller and the switching network and sending file data to the first subnet server. According to the invention, after the data in the exchange network passes the security authentication of the session boundary controller, two subnet servers transmit the data to ensure the security of the data during interaction.

Description

technical field [0001] The present application relates to the technical field of data transmission, and in particular to a data transmission system, transmission method and transmission device. Background technique [0002] In the existing data transmission process, when a terminal device outside the switching network needs to exchange data with a terminal device on the internal network of the switching network, it is usually necessary to use a virtual private network (Virtual Private Network, VPN) border access device to The data to be transmitted is connected to the intranet of the switching network through the port opened by the VPN border access device itself. However, in this case, the VPN access device has not been verified for safety, and its security is uncontrollable. If its own security is not guaranteed, it may endanger the data security of the entire switching network. Contents of the invention [0003] In view of this, the purpose of this application is to pr...

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Problems solved by technology

[0002] In the existing data transmission process, when a terminal device outside the switching network needs to exchange data with a terminal device on the internal network of the switching network, it is usually necessary to use a virtual private network (Virtual Private Network, VPN) border access device to The data to be transmitted is connected to the intranet of the switching network through the port opened by the VPN border access device itself. However, in this case, the VPN access device has not been verified for safety, and its security is uncontrollable. The security of itself is not guaranteed, which may endanger the data security of the entire switching network

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