A METHOD FOR IMPROVING REAL-TIME COMMUNICATION OF SWITCHED ETHERNET

Jun Zhao, Zhong Ma, Xiangjun Wu

Wuhan Digital Engineering Institute, No.718, Luoyu Road, Wuhan, China, 430074

 A method has been proposed for improving real-time communication of Switched Ethernet. Based on virtual link ideas, this method offline plans the whole network traffic under traditional Switched Ethernet hardware conditions, improves network terminal TCP/IP protocol by adding real-time communication interface, traffic shaping and priority queuing etc., and uses IEEE802.1p protocol on the switches of communication path. And it employs the network calculus theory to deduce the equation of calculating maximum end-to-end delay of real-time traffic. Meanwhile, it receives a simulation test of OPNET software. Both theoretical calculation and simulation results show that this method can effectively improve real-time communication of Switched Ethernet.