Resilient packet ring protection over a wavelength division multiplexing network
    2.
    发明授权
    Resilient packet ring protection over a wavelength division multiplexing network 有权
    波分复用网络上的弹性分组环保护

    公开(公告)号:US07957270B2

    公开(公告)日:2011-06-07

    申请号:US11168248

    申请日:2005-06-27

    摘要: A method and system for provisioning a Resilient Packet Ring (“RPR”) over a Wavelength Division Multiplexing (“WDM”) network is disclosed. A plurality of stations send data packets to each other over a dual ring fiber optic link. The data packets travel over the dual ring fiber optic link at a unique wavelength to distinguish the different data packets. When one station of the plurality of stations detects a location of a failure in the WDM network, the station identifying the location of the failure either notifies all stations of the plurality of stations of the location of the failure or notifies only the stations of the plurality of stations abutting the location of the failure. If all stations of the plurality of stations are notified of the failure, all stations steer data packets sent towards the location of the failure away from the location of the failure. If only the stations abutting the location of the failure are notified, only the stations abutting the location of the failure wrap data packets sent towards the location of the failure away from the location of the failure.

    摘要翻译: 公开了一种通过波分复用(“WDM”)网络来提供弹性分组环(“RPR”)的方法和系统。 多个站通过双环光纤链路彼此发送数据分组。 数据包以独特的波长在双环光纤链路上行进,以区分不同的数据包。 当多个站中的一个站检测到WDM网络中的故障的位置时,识别故障位置的站点通知多个站点中的所有站点故障位置,或仅通知多个站点的站点 的站点邻接故障的位置。 如果多个站中的所有站被通知故障,则所有站将指示故障位置发送的数据包转移到故障位置。 如果仅通知与故障位置相邻的站点,则只有邻近发生故障位置的故障包裹数据包的位置的站远离故障位置。

    Method and apparatus for monitoring an optical network signal
    3.
    发明授权
    Method and apparatus for monitoring an optical network signal 失效
    用于监控光网络信号的方法和装置

    公开(公告)号:US07739561B2

    公开(公告)日:2010-06-15

    申请号:US11487523

    申请日:2006-07-14

    IPC分类号: G01R31/28

    CPC分类号: H04B10/0773 H04B2210/078

    摘要: A method is disclosed for monitoring a communication link between a first apparatus and a second apparatus, the method comprising receiving concurrently from the first apparatus (e.g., a central office) at the second apparatus (e.g., an optical demarcation point at a customer premises) a communication signal at a communication wavelength, λ1 and a test signal at a test wavelength λt, permanently separating the test signal from the communication signal at the second apparatus and sending to the first apparatus on a return path between the first apparatus and the second apparatus a signal indicating whether the test signal was received at the second apparatus. An apparatus is disclosed including an interface for receiving concurrently the communication signal and the test signal, a filter for permanently separating the test signal from the communication signal and a coupler for permanently placing a signal on a return path.

    摘要翻译: 公开了一种用于监视第一装置和第二装置之间的通信链路的方法,所述方法包括在第二装置处(例如,客户驻地处的光分界点)从第一装置(例如,中心局)同时接收, 通信波长λ1的通信信号和测试波长λt的测试信号,永久性地将测试信号与第二设备的通信信号分开,并在第一设备和第二设备之间的返回路径上发送给第一设备 指示在第二装置处是否接收到测试信号的信号。 公开了一种包括用于同时接收通信信号和测试信号的接口的装置,用于将测试信号与通信信号永久分离的滤波器和用于将信号永久地放置在返回路径上的耦合器。