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With the distributed development of electronic systems in the aerospace industry, the requirements for high bandwidth, low latency and high reliability of airborne networks are becoming more and more strict. Traditional Controller Area Network(CAN), ARINC429 and other buses are gradually being replaced by Avionics Full Duplex switched ethernet (AFDX), Time-Triggered Protocol (TTP), Time triggered Ethernet (TTE),which are a new generation of aviation bus technology. For the TTE switched network, a new TTE Ethernet switch solution compatible with time-triggered traffic and standard event-triggered traffic is designed. It guarantees that the time-triggered traffic delay is controllable and fixed in a certain range. The switching rate, jitter and packet loss rate of the switch were verified by software tests such as wireshark and Iperf3. The simulation was performed by modelsim, and the reliability, delay range and time synchronization accuracy of the time-triggered traffic transmission was verified by embedded logic analyzer and oscilloscope on the FPGA hardware experiment board., the synchronization accuracy is achieved in the us and ns levels according to the synchronization period.