TTEthernet

If no time-triggered traffic capability is configured or used, it operates as full duplex switched Ethernet devices compliant with IEEE802.3 and IEEE802.1 standards.

TTEthernet device implementation expands standard Ethernet with services to meet time-critical, deterministic or safety-relevant requirements in double- and triple-redundant configurations for advanced integrated systems.

TTEthernet (i.e. Ethernet switch with SAE AS6802) integrates a model of fault-tolerance and failure management [citation needed].

The SAE AS6802 implemented on an Ethernet switch supports the design of synchronous system architectures with defined fault-hypothesis.

Time-Triggered Ethernet networks are intended to tolerate transient synchronization disturbances, even in the presence of permanent failures.

Self-stabilization means that synchronization can reestablish itself, even after a transient upset in a multitude of devices in the distributed computer network.

Hard real-time is possible at application level due to strict determinism, jitter control and alignment/synchronization between tasks and scheduled network messaging.

In L-TTA (Loosely TTA) architectures with synchronous TTEthernet network, but with local computer clocks decoupled from system/network time the performance of control loops may be limited.