Domain Networking

Modern vehicle network architectures are more hierarchical, supporting segmentation of the network into eitherfunctional domains, or physically proximal zones. Hierarchical segmentation is required to deal with the higher data rates associated with connected and autonomous vehicles. A flat network would be flooded by high data rates from the Advanced Driver Assistance Systems (ADAS) or infotainment domains. A segmented or zoned domain architecture supports high bandwidth where necessary, while still allowing virtual circuits between all potential senders and receivers.

A hierarchical domain network architecture requires intelligence in the network itself. This programmable network intelligence can be used to support safety requirements, such as determinism, liveliness detection, and multicast for redundancy, as well as security requirements, such as access control and message integrity.