A LIF (logical interface) is an IP address or WWPN with associated characteristics, such as a role, a home port, a home node, a list of ports to fail over to, and a firewall policy. You can configure LIFs on ports over which the cluster sends and receives communications over the network.
LIFs can be hosted on the following ports:
While configuring SAN protocols such as FC on a LIF, it will be associated with a WWPN.
For more information about configuring WWPNs for LIFs using the FC protocol, see the Clustered Data ONTAP SAN Administration Guide.
The following figure illustrates the port hierarchy in a clustered Data ONTAP system: