公开(公告)号：US09313037B2

公开(公告)日：2016-04-12

申请号：US13674689

申请日：2012-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong Wei ,  Yisong Liu

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L12/18 ,  H04L12/185 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28

Abstract: Embodiments of the present invention relates to the field of communications, which complements a data forwarding method of a backup incoming interface under protocol independent multicast dual join in a PIM protocol, facilitates implementation of compatibility in various manufacturers, and reduces a restriction of a network topology on the application of the PIM protocol. The method includes: when a main incoming interface is up, forwarding, by a router, multicast data received from a backup incoming interface to the main incoming interface in a join state; and when the main incoming interface is down, before selecting a new main incoming interface and/or backup incoming interface, forwarding, by the router, the multicast data received from the backup incoming interface to all interfaces in a join state or to all other interfaces in a join state except the backup incoming interface.

Abstract translation: 本发明的实施例涉及通信的领域，其补充了在PIM协议中的协议独立的组播双重连接下的备份传入接口的数据转发方法，有助于实现各种制造商的兼容性，并且减少了网络拓扑的限制 在PIM协议的应用上。 该方法包括：当主入接口处于up状态时，路由器将从备用接入接口接收到的组播数据转发到主入接口; 当主接入接口关闭时，在选择新的主入接口和/或备用接入接口之前，路由器将从备用接入接口接收到的组播数据转发到连接状态的所有接口或所有其他接口 处于加入状态，除了备份传入接口。