A vehicle is provided that includes Ethernet controllers that operate first electronic devices and perform communication using scalable service-oriented middleware on Ethernet/internet protocol (SOME/IP). An Ethernet switch generates a communication path between the Ethernet controllers and executes communication between the Ethernet controllers based on the generated path. A plurality of CAN controllers operate second electronic devices and perform CAN communication. A gateway then executes the CAN communication with the CAN controllers, executes communication with the Ethernet switch, and transmits CAN diagnostic information of the CAN controller to the Ethernet switch.