It is a single-mode SFF connector, but it can be turned into a duplex connector by using a clip. When a switch functions as an FCoE-FC gateway to connect FCoE devices on an Ethernet network to a Fibre Channel (FC) switch in a storage area network (SAN), it handles FCoE traffic from hosts and native FC traffic from the FC switch. Your software release might not support all the features documented in this module. For the latest caveats and feature information, see the Bug Search Tool at. LC (Lucent Connector) interface: The LC interface is a small optical fiber connector that is commonly used for high-density optical fiber connections, such as equipment connections in data centers and enterprise networks. The default type of an FC interface is F_Port. The VF_Port can work properly.