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1. 发明公开

EP1919138A1 A METHOD FOR IMPLEMENTING BACKUP OF THE UPLINK 有权
标题翻译： VERFAHREN ZURAUSFÜHRUNGEINES BACKUPS DER VERBINDUNG INAUFWÄRTSRICHTUNG
公开(公告)号：EP1919138A1
公开(公告)日：2008-05-07
申请号：EP06775393.9
申请日：2006-08-16
申请人： Huawei Technologies Co., Ltd.
发明人： HU, Jiehui , REN, Bin , XIONG, Yu , CAO, Liang , HUAI, Nan
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/1886 , H04L41/0668 , H04L43/0811 , H04L45/16 , H04L45/22 , H04L45/28 , H04L69/40
摘要： The embodiments of present invention disclose a method and a device for making uplink standby, including: configuring more than one uplink for an Internet Group Management Protocol (IGMP) proxy device, and choosing one of the more than one uplink as a primary uplink; the IGN4P proxy device replicating a multicast packet received over the primary uplink and sending the multicast packet replicated over a downlink to a multicast host. In the method provided by the embodiments of the present invention, only the primary uplink is used, which reduces the link bandwidth waste of the multicast host and improves the multicast data transmission efficiency. Flexible methods are adopted for checking the availability of the primary uplink so that the IGMP proxy device may detect in real time whether the primary uplink is available and choose a new primary uplink in time to guarantee the normal multicast communication.
摘要翻译：本发明的实施例公开了一种用于进行上行备用的方法和装置，包括：为因特网组管理协议（IGMP）代理设备配置多于一个上行链路，并选择多个上行链路中的一个作为主上行链路; IGN4P代理设备复制通过主上行链路接收的组播分组，并将通过下行链路复制的组播分组发送给组播主机。在本发明实施例提供的方法中，仅使用主上行链路，减少了多播主机的链路带宽浪费，提高了组播数据的传输效率。采用灵活的方法来检查主上行链路的可用性，使得IGMP代理设备可以实时检测主上行链路是否可用，并及时选择新的主上行链路，以保证正常的组播通信。

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