C o n f i g u r a t i o n 732 Type the port on which to send the OAM Loopback and press Enter. TheIAD performs a loopback test on the selected port and reports the results,whether successful or unsuccessful.3 Press any key to display the ATM Configuration menu.Configure EmptyCells To configure Empty Cells, follow the steps below.1 Type “6” on the ATM Configuration menu (Figure 4.37), to selectConfigure EmptyCells. The IAD displays the current status (“Idle” or“Unassigned”) and prompts you to change it.2 Type “1” to select Idle cells, or type “2” to select Unassigned cells.NOTICE: Empty cell IAD settings must match far-end settings.Configure DLCIsType “3” on the WAN Configuration menu to display the Frame RelayDLCI Configuration menu. Remember always to reset the IAD after youfinish DLCI configuration.NOTICE: Before you configure DLCIs, you must first set the datalink protocol toFrame Relay. If option 3 on the WAN Configuration menu displays“Configure PVCs” instead of “Configure DLCIs,” your datalinkprotocol is set to ATM instead of Frame Relay.Figure 4.39 Frame Relay DLCI Configuration MenuEach option on the menu is described below.Add New DLCI To add a new DLCI, follow the steps below.1 On the Frame Relay DLCI Configuration menu, type “1” to select AddNew DLCI. The IAD prompts you to enter a new DLCI number.2 Type a DLCI value between 16 and 1023 and press Enter. The IAD displaysthe Fame Relay Encapsulation Configuration menu (Figure 4.40).