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Aircraft are composed of many electronic systems: sensors, displays,navigation equipment and communication elements. These elements require areliable interconnection, which is a major challenge for communication networksas high reliability and predictability requirements must be verified for safeoperation. In addition, their verification via hardware deployments is limitedbecause these are costly and make difficult to try different architectures andconfigurations, thus delaying the design and development in this area.Therefore, verification at early stages in the design process is of greatimportance and must be supported by simulation. In this context, this workpresents an event-driven link level framework and simulator for the validationof avionics networks. The presented tool supports communication protocols suchas Avionics Full-Duplex Switched Ethernet (AFDX), which is a common protocol inavionics, as well as Ethernet, used with static routing. Alsa, accurate resultsare facilitated by the simulator through the utilization of realistic modelsfor the different devices. The proposed platform is evaluated in Clean Sky'sDisruptive Cockpit for Large Passenger Aircraft architecture scenario showingcapabilities of the simulator. The speed of the verification is a key factor inits application, so the computational cost is analysed, proving that theexecution time is linearly dependent on the number of messages sent.

An event-driven link-level simulator for validation of AFDX and Ethernet avionics networks