3-14To do... Use the command... RemarksEnable traffic encryption encrypt enableOptionalBy default, data encryption isenabled for downlink data.Configure an encryption key encrypt key key-valueOptionalIf no encryption key isconfigured, the system usesthe default encryption key.Currently, the encrypt keycommand is not supported.Testing the Link Between an ONU and the OLTFollow these steps to test the optical link between an ONU and the OLT:To do... Use the command... RemarksEnter system view system-view —Enter ONU port view interface onuinterface-number —Test the optical link betweenthe ONU and the OLTlinktest [ frame-number value| frame-size value | delay { on |off } | vlan-tag { on[ vlan-priority value | vlan-idvalue ] | off } ] *RequiredThe following lists the defaultvalues of the link testparameters.z Number of test frames: 20z Frame size: 1000 bytesz VLAN tag: not carried intesting framesz Delay testing state: OffThe link connectivity between an ONU and the OLT can be tested only when the ONU is online.Testing the Cable Connected to an UNI PortPerform this operation to test the cable connected to the specified UNI port of the ONU once and todisplay the testing result.Follow these steps to test the cable connected to an UNI port:To do… Use the command… RemarksEnter system view system-view —Enter ONU port view interface onuinterface-number —Test the cable connected to anUNI portuni uni-numbervirtual-cable-test Required
