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Firewall requirements for intercluster SnapMirror relationships

SnapMirror relationships that have source volumes on one cluster and destination volumes on another cluster require certain ports on the intercluster network.

SnapMirror relationships use port 11104 and port 11105 on the intercluster network to replicate data from their source volumes to their destination volumes. Clustered Data ONTAP uses port 11104 to manage intercluster communication sessions and uses port 11105 to transfer data.