Hello Today we are going to add ONU to OLT using MAC Authentication. With MAC authentication, ONU PON port will only come green if you have passed its MAC in OLT. If the MAC is not passed in OLT and ONU is attached to OLT PON port then the ONU will show no light on PON port. If there is no power received at ONU end then the LOS port will glow red. For changing the Authentication mode to MAC, login the OLT and move to ONU configuration then Authentication. Select Authentication Mode the change Auth Mode to MAC for all PON ports. Now move to Authentication then MAC List then select PON port on which you want to add new ONU. After that type the MAC of the new ONU in the MAC Address and add. Once you have powerd ON the ONU now this ONU will come Online. Now in the OPM Diag you can check the Distance of the ONU from PON port, ONU Transmit power and Received power at ONU end. Now create the VLAN provided by BSNL for new customer and