Cluster interconnect LIFs are created on which type of network interface?

Cluster interconnect LIFs are created on which type of network interface?

• A. on a dedicated management interface
• B. on a virtual NIC
• C. on a loopback
• D. on a physical port

Answer: (C)

Cluster interconnect traffic uses a loopback interface on each node. The loopback is an internal, non-physical interface dedicated to node-to-node communication, giving the cluster a stable IP path that remains reachable regardless of which physical ports are up or down. This isolation ensures inter-node coordination and heartbeat aren’t affected by data path changes or cabling, and it keeps cluster traffic separate from management or data traffic. Using a loopback for the interconnect is why the best answer is that cluster interconnect LIFs are created on a loopback.

Cluster interconnect traffic uses a loopback interface on each node. The loopback is an internal, non-physical interface dedicated to node-to-node communication, giving the cluster a stable IP path that remains reachable regardless of which physical ports are up or down. This isolation ensures inter-node coordination and heartbeat aren’t affected by data path changes or cabling, and it keeps cluster traffic separate from management or data traffic. Using a loopback for the interconnect is why the best answer is that cluster interconnect LIFs are created on a loopback.