CANLay: A User-centered Overlay for In-Vehicle Data Dissemination in a Network Virtualized Testbed

Testing and evaluating security solutions for devices that utilize in-vehicle networks often require setting up different configurations and topologies for tests. An efficient strategy to rapidly create multiple testing setups is to employ a software-defined vehicle and encapsulate in-vehicle networking messages in a switched packet network, like Ethernet. The purpose of this paper is to present the design of CANLay, the networking backbone of a software-defined vehicle, which is a network virtualized test bed for in-vehicle network security testing. CANLay, is responsible for carrying controller area network data as well as sensor signals emanating from a simulator. CANLay acts as a communication media between a vehicle simulator and real-world electronic control unitslocated on different network segments. The measurement of network performance for CANLay shows the technique has high reliability and low latency for local network connections. Applications related to heavy vehicle networks are demonstrated to effectively show utilization of CANLay for testing.