You should know about the interfaces and ports that you put together to create a cluster peer intercluster network and how they are used. Knowing this information might reduce the amount of time you use to create the cluster peer intercluster network.
A cluster peer intercluster network consists of intercluster logical interfaces (LIFs) that are assigned to network ports. The intercluster network on which replication occurs between two different clusters is defined when the intercluster LIFs are created. Replication between two clusters can occur on the intercluster network only; this is true regardless of whether the intercluster network is on the same subnet as a data network in the same cluster.
The IP addresses assigned to intercluster LIFs can reside in the same subnet as data LIFs or in a different subnet. When an intercluster LIF is created, an intercluster routing group is automatically created on that node too. A gateway address for the intercluster routing group must be defined, and the intercluster routing group must be routed to the defined gateway address.
You can assign intercluster LIFs to ports that have data LIFs assigned, which are the same ports used for CIFS or NFS access, or you can assign intercluster LIFs to ports that have only intercluster LIFs assigned. Each method has its advantages and disadvantages.