How should IP addresses be assigned for all vManage cluster members located in the same data center?

For vManage cluster members within the same data center, they must be placed in the same subnet. This is a fundamental requirement for the cluster's high availability and inter-node communication. The vManage cluster relies on direct Layer 2 connectivity and efficient communication between its members to synchronize data, maintain state, and elect a primary node. Placing them in the same subnet simplifies routing and ensures that multicast and broadcast traffic, which can be used for discovery and communication, functions correctly. Overlapping IP addresses would cause network conflicts and prevent communication. Placing members in different subnets would introduce routing complexities and potentially latency, hindering cluster operations. Assigning each controller a /32 address is a host-specific route, not a subnet, and would not facilitate the necessary intra-cluster communication.