Controlled multicasting system and use method thereof

Abstract

The invention relates to a controlled multicasting system which is used for a kilomega Ethernet source-free optical network. The system comprises an optical network unit, an optical fiber line terminal, a charging system and a terminal user, wherein the optical network unit further comprises a seizing package engine module used for establishing and maintaining a corresponding relationship between the MAC address of the terminal user and a network user port. Under the precondition of ensuring the normal application and the multicasting flow acquisition of a user, the invention enables the multicasting flow rate not to be copied to an illegal user by the optical network unit, realizes the control of user authorities and the controllable and manageable operation of the service, and also greatly saves the bandwidth between the user and the optical network unit.

Description

technical field [0001] The present invention relates to a system for realizing controlled multicast, in particular to a controlled multicast system applied in Gigabit Ethernet passive optical network. In addition, the present invention also relates to the above-mentioned system for realizing controlled multicast Instructions. Background technique [0002] At present, in the access network based on GEPON technology, the realization of controlled multicast is mainly carried out on the port of the access control router. The usual practice is to replicate the multicast data of multiple VLANs (Virtual Local Area Network, Virtual Local Area Network) on the access control router port connected to the optical line terminal (OLT), that is, Multicast Virtual Local Area Network Registration Technology (Multicast VLAN Registration) , MVR). In this implementation scheme, by assigning each user network port of an optical network unit (ONU) of the GEPON terminal equipment to a separate V...

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Problems solved by technology

[0003] However, in this solution, a multicast stream is copied to multiple VLANs on the port of the access control router to form multiple multicast streams. Even if two different end users need to receive the same set of multicast streams, in the access network There will also be two sets of multicast data streams with the same content existing in different VLANs, which will waste a lot of bandwidth resources of the access network

[0004] On the other hand, if the GEPON system adopts VLAN merging technology, that is, the multicast service requests of all end users in the GEPON system are merged into one VLAN. , merged into a unified multicast VLAN for transmission, although this solves the defect that the MVR technology wastes access network bandwidth resources, it will cause all end user permissions under the GEPON system to be indistinguishable, that is to say, the operation and maintenance of the business Unable to be controllable and manageable

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