Amendment 1 to Recommendation ITU-T G.984.3:

specifies the ONU registration method;

clarifies the definitions of Dying_Gasp and Deactivate_ONU-ID PLOAM messages;

reconciles the description of PON alarms;

adds a new appendix clause addressing transmission of MPLS datagrams using the G-PON encapsulation method;

provides necessary clarifications to several standard items, including the use of the DBA reference model, the required number of supported reassembly buffers, and details of the key exchange.