Time Triggered Ethernet (TTE) is a kind of network that has high accuracy distributed clock synchronization mechanism,time/event triggering function and high data reliability.According to the development requirements of the aviation electronic integrated interconnection,the scalability and real-time characteristics of TTE network are analyzed.A method for simulating TTE network is presented,and the real-time characteristic of the time triggered Ethernet is verified.The simulation shows that TTE is suitable for distributed avionics interconnection network.