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    • 10. 发明授权
    • N+N protection switching
    • N + N保护切换
    • US08787151B2
    • 2014-07-22
    • US13187308
    • 2011-07-20
    • Joe PollandClifton PowersManish SharmaLaxman R. AnneYiu Lam Chan
    • Joe PollandClifton PowersManish SharmaLaxman R. AnneYiu Lam Chan
    • H04L1/00
    • H04B3/23
    • A communication system comprises a plurality of DSL links comprising a first group and second group of DSL links, each group comprising more than one DSL link. The communication system also comprises a first node and a second node each having at least one application port and a plurality of DSL ports. Each DSL port is coupled to a respective one of the DSL links such that the first and second nodes are communicatively coupled via the DSL links. Each of the first and second nodes is configured to interleave a first copy of data received over the respective application port across the first group and to interleave a second copy of the data across the second group. When a failure is detected on a DSL link in the first group, each of the first and second nodes is configured to switch from the first group to the second group.
    • 通信系统包括多个DSL链路,其包括第一组和第二组DSL链路,每个组包括多于一个DSL链路。 通信系统还包括每个具有至少一个应用端口和多个DSL端口的第一节点和第二节点。 每个DSL端口耦合到DSL链路中的相应一个,使得第一和第二节点经由DSL链路通信耦合。 第一和第二节点中的每一个被配置为交织跨越第一组在相应的应用端口上接收的数据的第一副本,并跨越第二组交织数据的第二副本。 当在第一组中的DSL链路上检测到故障时,第一和第二节点中的每一个被配置为从第一组切换到第二组。