Aircraft are composed of many electronic systems: sensors, displays, navigation equipment and communication elements. These elements require a reliable interconnection, which is a major challenge for communication networks as high reliability and predictability requirements must be verified for safe operation. In addition, their verification via hardware deployments is limited because these are costly and make difficult to try different architectures and configurations, thus delaying the design and development in this area. Therefore, verification at early stages of the design process is of great importance that has to be supported via simulation. In this context, the present work presents an event-driven link level framework and simulator for the validation of avionics networks. The presented tool supports avionics protocols such as Avionics Full-Duplex Switched Ethernet (AFDX), which is a common protocol in avionics, as well as Ethernet, which is used with static routing in such scenarios. The simulator also uses realistic element models to provide accurate results. The proposed platform is evaluated in Clean Sky's Disruptive Cockpit for Large Passenger Aircraft architecture scenario. The speed of the verification is a key factor, so the computational cost is analyzed, proving that the execution time is linearly dependent on the number of messages sent.This work has been partially funded by: the Junta de Andalucía and the ERDF(European Regional Development Fund) Operational Programme in the framework of the CAPTOR project: “advanCed Avionics communications validation and verification PlaTfORm” (Ref. PYC20 RE 077 UMA); AERTEC Solutions (reference 8.06/5.59.5543, 8.06/5.59.5715 and 806/59. 5974) in the framework of project 2020 AS-DISCO: “Audio Suite for Disruptive Cockpit Demonstrator” (this project has received funding from the Clean Sky 2 Joint Undertaking under the European Union's Horizon 2020 research and innovation programme under Grant Agreement n°: 865416’); Ministry of Economic Affairs and Digital Transformation and the European Union - NextGenerationEU, in the framework of the Recovery, Transformation and Resilience Plan and the Recovery and Resilience Mechanism under the MAORI project; the Ministry of Science and Innovation (grant FPU21/04472); and the "Universidad de Málaga, Campus de Excelencia Internacional Andalucía Tech" through the “II Plan Propio de Investigación, Transferencia y Divulgación Científica”. The authors are grateful to Aertec Solutions for their support and collaboration in this project
