How do you perform network load analysis and optimization for a vehicle communication architecture?

Network load analysis involves: Defining all messages with size, cycle time, and transmitter, calculating bus load (typically target <50% for CAN to allow burst headroom), analyzing worst-case latency using scheduling theory, identifying timing conflicts and priority inversions, evaluating fault tolerance and degraded mode behavior, and simulating dynamic scenarios. Optimization strategies include: Message consolidation, cycle time optimization, gateway message filtering, segmenting high-load ECUs onto separate buses, and migration to higher bandwidth (CAN-FD, Ethernet) where needed. Tools like Vector CANoe, CANalyzer provide simulation and analysis. Documentation includes communication matrix and timing analysis reports.