Research and Analysis on AFDX Network Configuration Based on OMNET++ Simulation

Lei Kang; Ruixin Du

doi:10.54097/vgbjnm36

Authors

Lei Kang
Ruixin Du

DOI:

https://doi.org/10.54097/vgbjnm36

Keywords:

AFDX; OMNeT++; Avionics; Network Modeling; Performance Optimization.

Abstract

With the continuous improvement of data transmission performance requirements in avionics systems, traditional communication buses such as ARINC429 can no longer meet the needs of modern avionics systems for high bandwidth and real-time performance. Avionics Full-Duplex Switched Ethernet (AFDX), as a network technology in Integrated Modular Avionics (IMA), has gradually become the key to solving such requirements. This paper constructs an AFDX network simulation framework based on the OMNeT++ platform, carries out modular improvements and extensions to the framework, and optimizes key functional modules of end systems and switches, including frame parsing, scheduling mechanisms, buffer management, and performance monitoring. By adjusting network parameters such as the number of end systems, bandwidth allocation intervals, and queue lengths, the impact of different configurations on network performance is systematically analyzed. The simulation results show that reasonable parameter configuration can effectively improve the end-to-end delay and bandwidth utilization of the network, providing theoretical support and technical paths for the design and optimization of avionics networks.

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