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    • 8. 发明申请
    • EFFICIENT PROTECTION SCHEME FOR MPLS MULTICAST
    • MPLS MULTICAST的有效保护方案
    • US20110158128A1
    • 2011-06-30
    • US12650752
    • 2009-12-31
    • Yigal BejeranoPramod Koppol
    • Yigal BejeranoPramod Koppol
    • H04L12/56H04L12/28
    • H04L45/24H04L12/1877H04L45/16H04L45/28H04L45/48H04L45/50
    • An efficient protection scheme for MPLS multicast is disclosed for protection of Point-to-Multi-Point LSP connections. The efficient protection scheme for MPLS multicast includes a pair of Redundant Multicast Trees for each multicast connection which connects the source of a multicast LSP to all its destinations in such a way that in the event of a single link or node failure in the network, every destination node is still connected to the root node in at least one of the two trees. Furthermore, a method is disclosed that ensures that existing Redundant Multicast Trees can adapt to changes in the set of destination nodes and/or network topology changes without significant modifications. The efficient protection scheme for MPLS multicast is particularly useful for reducing the protection bandwidth requirements over protection methods known in the art.
    • 为了保护点对多点LSP连接,公开了一种用于MPLS组播的有效保护方案。 MPLS组播的有效保护方案包括一对冗余组播树,用于将组播LSP的源连接到所有目的地,以使得在网络中单个链路或节点故障的情况下, 目的地节点仍然连接到两个树中的至少一个中的根节点。 此外,公开了一种确保现有冗余多播树可以适应目的地节点集合和/或网络拓扑变化中的变化而不进行重大修改的方法。 MPLS多播的有效保护方案对于通过本领域已知的保护方法来减少保护带宽要求特别有用。