This OID reports the fabric host port the launched, deployed instance of an iSCSI vNIC as it actually runs on a server, as opposed to the vNIC's policy-level definition (IScsiLCP) is actually using at runtime, which may differ from the administratively assigned one if UCS Manager had to reassign it. An admin cares because a mismatch between the admin-configured host port and this operational value often signals a fabric port failure that forced a failover. For example, if this operHostPort value doesn't match the adminHostPort setting, an admin would investigate why the original fabric port was unavailable when the vNIC came up.