This reports the transport type, native FC or FCoE, actually in effect on this specific VSAN endpoint binding. A VSAN might be intended for FCoE overall but only work over FCoE on ports with compatible hardware, so an admin checks this per-endpoint value to confirm this particular port will actually carry FCoE frames rather than assuming so from the VSAN-level setting alone. A port on a non-FCoE-capable module would show transport as fc even if the VSAN itself is marked for FCoE at the VSAN-object level.