MULTICAST CONTROL METHOD IN ETHERNET PASSIVE OPTICAL NETWORK

摘要

A method for controlling a multicast in an Ethernet passive optical network, the method comprises: (A) configuring user-end devices and their user ports with different IDs; using the user-end devices ID and their user port IDs to mark users in central office devices and setting user's multicast authorization table; (B) controlling users' multicast authority in the central office devices according to the multicast authorization table; setting multicast filter table and user filter table in the user-end devices according to controlling result, and the user-end devices filtering and forwarding multicast data to users having multicast authority based on the multicast filter table and the user filter table. The method of the present invention can be used to implement multicast control for different user ports in the same user-end device so as to improve the multicast's security.