What type of LIF is used to replicate between two clusters?

Node management LIFs are used for individual node administrative access and are not designed or used for inter-cluster replication traffic.

Cluster LIFs operate on the private cluster interconnect network to handle intra-cluster communication between nodes, and cannot be used for external cluster-to-cluster replication.

Intercluster LIFs are specifically provisioned on each node participating in a peering relationship to handle cross-cluster communication including SnapMirror and SnapVault replication. They must be assigned routable IP addresses reachable by the peer cluster, and each node involved in replication requires at least one intercluster LIF. Without intercluster LIFs, a cluster peer relationship cannot be created or maintained.

Cluster-management LIFs provide a single administrative access point for the entire cluster but carry no replication traffic between clusters.

Data LIFs are intended to serve client I/O requests and are not used for inter-cluster replication or cluster peering communications.