METHOD FOR REGISTERING AN OPTICAL NETWORK UNIT TO AN OPTICAL LINE TERMINAL, APPARATUS FOR PROCESSING A REGISTERING OF AN OPTICAL NETWORK UNIT, AND OPTICAL LINE TERMINAL

Provided are a method and apparatus for distributing optical network unit service information and an optical line terminal for solving problems in the related art that the ONU service information distribution process is cumbersome and the service fulfillment efficiency is low. The present invention includes: acquiring a registration request of an optical network unit to be registered, and acquiring a serial number of the ONU to be registered and port information about an optical line terminal connected to the ONU to be registered according to the registration request; searching a service data table for data resources having a resource occupation identifier of a preset value, selecting one of the data resources having the resource occupation identifier of the preset value as a distributing resource and transmitting the distributing resource to the ONU to be registered. The resource occupation identifier of the preset value indicates that corresponding data resources are not occupied. The present invention simplifies the ONU service information distribution process, reduces a service fulfillment failure occurrence probability and shortens a service fulfillment time.