Controlled multicast system based on multicast conversion

Abstract

The invention discloses a controlled multicast system based on multicast conversion. The controlled multicast system is characterized by comprising at least one ASM (any source multicast) and SSM (source specific multicast) bidirectional translation gateway based on an IPv6 (internet protocol version 6) connected with at least one client by virtue of an ASM network, at least one unicast and SSM bidirectional translation gateway based on the IPv6 connected with at least one client by virtue of a unicast network and simultaneously connected with the ASM and SSM bidirectional translation gateway by virtue of an SSM network, an NMS (network management system) which is communicated and interacted with the ASM and SSM bidirectional translation gateway and the unicast and SSM bidirectional translation gateway, a network topology database and an information statistical database, wherein the network topology database and the information statistical database are connected with the NMS. The controlled multicast system disclosed by the invention can be used for realizing multicast service sharing among networks supporting different multicast protocols and carrying out uniform scheduling and control on the multicast conversion service.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a controllable multicast system based on multicast conversion. Background technique [0002] The high-performance video transmission system (including video conferencing system and network TV system) with the technical characteristics of large data volume and low delay is a typical application of the next generation Internet. And the application system itself puts forward very high requirements. Currently popular video application systems include DVTS system, VLC system and high-definition uncompressed video system, with resolutions from standard definition (720×480) to high-definition (1920×1080), transmission bandwidth from 22Mbps to 800Mbps, with different characteristics, for users Different needs provide different services. High-performance video transmission systems generally have one-to-multipoint or multipoint-to-multipoint concurrent transmission characteristics. ...

AI Technical Summary

Problems solved by technology

However, due to different models, protocols and routing methods, ASM multicast and SSM multicast are not compatible with each other, and unicast and multicast are not compatible with each other

[0004] In ASM multicast and SSM multicast technologies, the source, receiver and bandwidth of multicast are uncontrollable. In addition, when user nodes frequently join and exit, the state of multicast routing will change frequently, causing huge State maintenance overhead, which seriously affects the scalability of multicast services

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