在数字有机体流媒体系统中，流媒体组播业务是一项主要的系统应用。
In the stream media system, multicast application is one kind of important application services.
通过使用本发明，可以对宽带接入设备的组播业务进行详细准确而全面的测试。
And the invention can make detailed, accurate and complete test for multicast service of wideband access equipment.
组播覆盖网络技术可以在非完全组播网络中实现组播业务，并具有较高数据传输效率。
Multicast Overlay Network technology is able to carry out multicast session in Partial-multicast Network, and can transport data with high efficiency.
本发明实施例公开了一种虚拟专有组播业务中流媒体分发的方法、装置及系统，属于通信领域。
The embodiment of the invention discloses a method for streaming media distribution in virtual special multicasting service, a device and a system thereof, which belong to communication field.
本发明提供了一种多媒体广播组播业务的实现方法及系统，能够降低MBMS的实现复杂 度。
The present invention provides a method and system for implementing multimedia broadcast multicast service, capable of reducing implementation complexity of MBMS.
随着网络中组播业务比例的不断增长，交换结构及其调度策略必须能够为组播业务提供良好的支持。
Since multicast traffic exhibits an increasing proportion of traffic on the Internet, switch architecture and scheduling policy must afford good support for multicast traffic.
OLT设备的主要模块包括电源模块、管理模块和交换模块等，业务模型主要包括高速上网业务和组播业务。
The main module of OLT equipments includes power supply module, OBC module, IWF module, EPON module and so on. Service models mainly include HSI service and IGMP service.
目前由于MPLSVPN网络中很多PE设备尚不支持组播业务，因此在VPN内部署组播业务时遇到了一定的困难。
Now, many PE devices in MPLS VPN network do not support multicast service, as result, it brings difficulty in multicast service.
IP组播技术是IPTV直播业务必须采用的关键技术之一。
The IP-Multicast technology is one of important technologies in IPTV Living broadcast operation.
仿真结果表明改进的蚁群算法能有效的寻找到一棵性能良好的组播树，并能够满足各种业务的服务质量需求。
The simulation results show the improved ant colony algorithm can effectively find a good performance multicast trees, and meet the business needs of the quality of service.
组播是面向群组接收者的首选网络通信技术，但缺乏安全机制限制了组播在各种网络业务中的广泛应用。
Multicast is the current prime network technique focusing on the group receivers, but the absence of security mechanism has limited its application in various network services.
第二，路由交换设备必须具有良好的组播支持能力，用于支撑具有动态组播特性的宽带流媒体网络承载业务；
Second, they should be able to support multicast, which can be used for carrying broadband multimedia network traffic with dynamic multicast characteristic.
面向可靠组播中的多媒体流传输业务，讨论了目前组播拥塞控制面临的主要挑战，提出了一种路由器辅助基于速率的组播拥塞控制算法。
This paper discusses the main challenge of multicast congestion control and proposes a router-assisted rate-based congestion control algorithm for real-time multimedia streams in reliable multicast.
而上述业务可以通过组播技术在不改变网络结构的前提下，尽可能的缓解网络带宽消耗过大的压力。
They can use multicast technology, which will not change network structure, to reduce the pressure of too much bandwidth consumption.
组播是一种可以有效减轻对网络带宽的消耗，提高数据传输效率的通信方式，因而在这类业务中得到了广泛的应用。
Multicast is an effective way to reduce network bandwidth consumption and increase data transmission efficiency of communication which in such applications has been widely used.
组播是一种可以有效减轻对网络带宽的消耗，提高数据传输效率的通信方式，因而在这类业务中得到了广泛的应用。
Multicast is an effective way to reduce network bandwidth consumption and increase data transmission efficiency of communication which in such applications has been widely used.
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