Dual-active dedicated line architecture connecting enterprise data centers to Volcano Engine via redundant telecom and unicom carriers through FusionWAN intelligent backbone. Traffic flows from customer CE equipment through dual POP nodes in Shanghai, each carrying 30Mbps L2 point-to-point VLAN circuits with 99.99% SLA to ECS clusters, RDS, and OSS in Volcano Cloud. This design eliminates single points of failure by load-balancing across two independent carrier networks while maintaining layer-2 transparency. Enterprise architects can fork this diagram to customize carrier selection, bandwidth allocation, and regional POP placement for their own multi-cloud strategies. The SysCXP unified management platform provides centralized monitoring, configuration, fault alerting, and bandwidth orchestration across the entire hybrid network.