公开(公告)号：US20120017251A1

公开(公告)日：2012-01-19

申请号：US13202983

申请日：2009-12-03

申请人： Junjian Zhang ,  Zhanli Wang ,  Jianying Gao

发明人： Junjian Zhang ,  Zhanli Wang ,  Jianying Gao

IPC分类号： H04N7/173

CPC分类号： H04N7/17336 ,  H04L12/1863 ,  H04N21/24 ,  H04N21/43615 ,  H04N21/44227 ,  H04N21/4432 ,  H04N21/6332 ,  H04N21/6473 ,  H04N21/64776

摘要： The present invention discloses a method for reducing interruption time of an internet protocol television multicast stream, comprising the steps of: after the kernel of a home access gateway is restarted, detecting whether the network port connected to the access equipment side is started; when started, sending an Internet Group Management Protocol (IGMP) query command to the access equipment through the network port; then establishing a multicast forwarding table which is from the home access gateway to the access equipment according to the identification information of the access equipment which responds to the internet group management protocol query command, and then reporting the multicast forwarding table to an internet group management protocol multicast source. The present invention further discloses a device for implementing the method above. The present invention can reduce the interruption time of the internet protocol television multicast stream, improve the Quality of Service (QoS) of the IPTV system, and be implemented simply.

摘要翻译： 本发明公开了一种减少互联网协议电视多播流中断时间的方法，包括以下步骤：在重新启动家庭接入网关的内核后，检测连接到接入设备侧的网络端口是否开始; 启动时，通过网络端口向接入设备发送Internet组管理协议（IGMP）查询命令; 然后根据响应于互联网组管理协议查询命令的接入设备的识别信息建立从归属接入网关到接入设备的组播转发表，然后将组播转发表报告给因特网组管理协议 组播源。 本发明还公开了一种用于实现上述方法的装置。 本发明可以减少因特网协议电视多播流的中断时间，提高IPTV系统的服务质量（QoS），简单实现。