One-way transmission and reception with delayed TCP ACK message and monitoring for UDP and TCP frames

摘要

A one-way data transmission and reception system and method, which mitigate the problem of a buffer overflow that may occur on a reception system while also mitigating the problem of data loss caused by a link error that may occur in the unidirectional line of a physical one-way data transmission system. The one-way data transmission system includes a first interface unit connected to a first network. A second interface unit is unidirectionally connected to a reception system connected to a second network. An interface integration module unit transmits a delayed Transmission Control Protocol (TCP) Acknowledgement (ACK) frame to a TCP session established with a device of the first network unit through the first interface unit, and transmits one or more identical data frames to the reception system through the second interface unit.

主权项

1. A one-way data transmission system comprising:
a first interface unit connected to a first network to transmit and receive data frames; a second interface unit unidirectionally connected to a reception system connected to a second network to transmit and receive data frames; and an interface integration module unit for transmitting a delayed Transmission Control Protocol (TCP) Acknowledgement (ACK) frame to a TCP session established with a device of the first network unit through the first interface unit, and transmitting one or more identical data frames to the reception system through the second interface unit, wherein the interface integration module unit comprises: a frame monitoring unit for monitoring whether a frame received from the first interface unit is an accepted frame, transferring an accepted frame to a frame generation unit if the accepted frame is a User Datagram Protocol (UDP) frame, and transferring the accepted frame to the frame generation unit and to a management unit if the accepted frame is a TCP frame; the frame generation unit for generating one or more identical frames for the frame received from the frame monitoring unit, and transferring the identical frames to the second interface unit; and the management unit for managing a TCP session to be established between a device of the first network and a device of the second network, based on the TCP frame received from the frame monitoring unit.