1. Integration of various business data brings serious challenges to classified treatment of unicast traffic and multicast traffic
2. Fluent transmission of audio and video requires high bandwidth
3. Risk of looped network storm between switches
4. As it is an autonomous driving metro, ensuring a safe distance from the vehicle in front is very important


1. Dynamic routing protocol and multicast routing protocol make data transmission easier
2. Gigabit converged backbone network ensures high bandwidth for reliable data transmission
3. Adopts link Aggregation protection to avoid broadcast storm, NAT guarantees T2G communication security
4. Uses AI to ensure the safety running of the metros


1. Multicast technique realizes efficient and reliable data transmission
2. Achieves fluent transmission of audio and video data

3. Ensures stable on-board network and reliable PIS system
4. Anti-collision system ensures safety during autonomous driving

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