This object reflects the usage of this interface, whether it is a frontpanel interface or a backplane interface used for interswitching in distributed environments. frontpanelport - The interface behaves as a normal interface visible to the management and other protocols. backplaneport - This port operates as back plane interface in the system enabling communication across the line cards present in the system. This interface will be masked from the management control for all the protocol related operations. This can be used in distributed environments wherein protocols are ran over every individual line cards to achieve better CPU utilization and performance. Proprietary PDU and tailored control PDU flow out of this interface to keep the system information intact across the line cards present in the system. This can be enabled only over the physical interface and not over any other interface.