The proposed Serv-CPS network framework includes an enhanced Ethernet switch, suitable for cyber-physical systems. The proposed enhanced switch is based on the Flexible Time-Triggered paradigm (FTT), extending a COTS Ethernet switch with real-time services and making it suitable to use in the context of networked embedded systems with tight time constraints. The FTT-Enabled switch provides :

• Isochronous Real-Time channels
• Time-triggered traffic with guaranteed timeliness
• Arbitrary scheduling policies (e.g. RM, EDF)
• Message set that can be configured statically or dinamically
• Support of jitter and latency sensitive traffic

• Asynchronous Real-Time channels
• Event-triggered traffic supported by servers
• Guaranteed bandwidth and access time (specified by budget and period)
• Servers can be configured statically or dynamically
• Suited to traffic with arbitrary arrival times and/or varying bandwidth
• Provides channel isolation

• Non-Real-Time channels
• Provides standar COTS Ethernet switch services