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    • 7. 发明授权
    • Computer network with point-to-point pseudowire redundancy
    • 具有点到点伪线冗余的计算机网络
    • US07643409B2
    • 2010-01-05
    • US10925743
    • 2004-08-25
    • Eric VoitSteve PhillipsAli SajassiYves Hertoghs
    • Eric VoitSteve PhillipsAli SajassiYves Hertoghs
    • G01R31/08G06F15/173
    • H04L45/48
    • A computer network includes a core network connected with first and second Ethernet access domain networks, each of Ethernet access domain networks including a user-facing provider edge (u-PE) device, a primary network-facing provider edge (n-PE) device, a redundant n-PE device, and a plurality of aggregation provider edge (Agg-PE) devices providing connectivity between to the u-PE device and the primary and redundant n-PE devices, the Agg-PE devices running a spanning-tree protocol (STP) algorithm. A primary data path is provided along with first and second redundant data paths that include first and second redundant pseudowires (PWs), respectively, connected across the core network, the first and second redundant data paths being blocked by the STP algorithm when the primary data path is available, the STP algorithm unblocking either the first or second redundant data path in response to a failure of the primary data path. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    • 计算机网络包括与第一和第二以太网接入域网络连接的核心网络,每个以太网接入域网络包括面向用户的提供商边缘(u-PE)设备,主要面向网络的提供商边缘(n-PE)设备 ,冗余n-PE设备,以及提供与u-PE设备和主冗余n-PE设备之间的连通性的多个聚合提供商边缘(Agg-PE)设备,运行生成树的Agg-PE设备 协议(STP)算法。 主数据路径与第一和第二冗余数据路径一起提供,第一和第二冗余数据路径分别包括连接在核心网络上的第一和第二冗余伪线(PW),第一和第二冗余数据路径被主要数据 路径可用,STP算法响应于主数据路径的故障解除阻塞第一或第二冗余数据路径。 要强调的是,该摘要被提供以符合要求抽象的规则,允许搜索者或其他读者快速确定技术公开内容的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72(b)。