Abstract: The technology of Time-Triggered Ethernet(TTE) has been used in the new generation of aviation bus and developing at top speed,and the methods of modeling and performance analysis of TTE become an important meaning in its development of aerospace．Based on the working principle of message transmission of the TTE,this paper proposed a set of method of using Deterministic and Stochastic Petri Nets(DSPN) to model the TTE bus and do some related performance analysis,and also used a typical fire control system as an example for modeling and performance analysis,to illustrate the feasibility and effectiveness of the method．

Key words: Time-triggered ethernet,DSPN,System modeling,Performance analysis