SOME IP in the automotive environement and its applications

SOME IP

1. SOME IP

2. Scalable service-Oriented middlewarE over IP messages sent between devices or subscribers over IP Service ID: unique identifier Method ID: 0-32767 for methods, 32768-65535 for events Length: length of payload in byte Client ID: unique identifier Session ID: identifier for session handling incremented for each call Protocol Version Interface Version: major version of the service interface Message Type Return Code

3. The payload contains the serialized data.  UDP case the SOME/IP messages are not fragmented ( more than one message is in one UDP packet; one message cannot be longer than a UDP package -1400 Bytes ) Bigger messages must be transported via TCP.  Instance is identified via the port number of the transport protocol events in the SOME/IP protocol are always grouped in an event group.

4. Service Discovery is used to locate service instances and to detect if service instances are running (offer messages) SOME/IP SD messages are sent via UDP

5. Reference http://some-ip.com/ vsomeip in 10 minutes · COVESA/ vsomeip Wiki · GitHub Releases · COVESA/ vsomeip (github.com) https://github.com/COVESA/vsomeip/blob/master/documentation/vsomeipUserGuide https://github.com/COVESA/vsomeip/issues/134