ИСТИНА

We present a comparison of several approaches to design of data exchange networks for onboard real-time information and control systems (RT ICS). The approaches considered are based on Fibre Channel (FC), Avionics Full Duplex Ethernet (AFDX) and Software-Defined Networking (SDN) technologies. The networks are compared according to the following criteria: ability to guarantee real-time messages transfer; ability to maintain common time in the system; amount of extra hardware resources to ensure the necessary reliability; support for dynamic (during the RT ICS runtime) alteration of message transfer routes.