This enumerated value reports the interface type of this VSAN's endpoint on an FCoE member port — the physical/logical category of link it represents in Cisco's UCS interface classification. Knowing the ifType lets monitoring tooling apply the right expectations (speed, aggregation behavior) to this VSAN's endpoint on an FCoE member port instead of treating every interface entry the same way. For a port-channel member like this the value is typically something like 'aggr-port' (an aggregated-port member), distinguishing it from a plain physical port entry.