SYSTEM AND METHOD OF SYNCHRONIZING A DISTRIBUTED CLOCK IN A PACKET-COMPATIBLE NETWORK

    公开(公告)号:US20180013508A1

    公开(公告)日:2018-01-11

    申请号:US15643613

    申请日:2017-07-07

    CPC classification number: H04J3/0682 H04J3/0667 H04J3/0679

    Abstract: There are provided a clock node, a controller, a method of operating the clock node and a method of operating the controller in a time distribution network (TDN) comprising the controller being in data communication with the clock nodes via a control path. The method of operating the clock node comprises: sending, from the clock node via the control path to the controller, a first timestamp-related data; receiving, by the clock node via the control path from the controller, clock-recovery control data generated by the controller using the first timestamp-related data received from the clock node; processing the received clock-recovery control data to extract data usable for phase and frequency recovery; and using the extracted data to steer frequency and phase characterizing the clock node.

    Method for traffic engineering on networks made of asymmetrical network switches

    公开(公告)号:US09628367B2

    公开(公告)日:2017-04-18

    申请号:US13923613

    申请日:2013-06-21

    Inventor: Igor Bryskin

    Abstract: An asymmetrical network switch adapted to auto-discover and advertise into a traffic engineering, TE, domain a switch detailed connectivity matrix, SDCM, containing for each allowed switching combination of interfaces of said asymmetrical network switch at least one switch detailed connectivity matrix entry, SDCME, wherein each said SDCME represents an internal to said asymmetrical network switch potential connection interconnecting the interfaces of said interface switching combination, wherein a SDCME advertisement includes a switch detailed connectivity matrix entry cost vector, SDCME CV, which comprises a set of attributes describing cost penalties in terms of various service characteristics that a network service incurs if it selects a path or a tree traversing the asymmetrical switch in accordance with the SDCME.

    Latency monitoring function
    28.
    发明授权
    Latency monitoring function 有权
    延迟监控功能

    公开(公告)号:US09401856B2

    公开(公告)日:2016-07-26

    申请号:US13762748

    申请日:2013-02-08

    Abstract: A network comprising a latency monitoring point adapted to calculate a forward latency of a path between a master node and a slave node on the basis of time stamps which are exchanged periodically between said master node and said slave node by a time alignment protocol used in said network.

    Abstract translation: 一种网络,包括等待时间监视点,所述等待时间监视点适于基于在所述主节点和所述从节点之间周期性地交换的时间标记计算主节点和从节点之间的路径的前向等待时间。 网络。

    Apparatus and Method For Monitoring Signal Quality of a Modulated Optical Signal
    30.
    发明申请
    Apparatus and Method For Monitoring Signal Quality of a Modulated Optical Signal 有权
    用于监测调制光信号信号质量的装置和方法

    公开(公告)号:US20160112138A1

    公开(公告)日:2016-04-21

    申请号:US14518262

    申请日:2014-10-20

    Abstract: A transmitter with at least one optical modulator adapted to modulate the optical signal output by a laser source to generate a modulated optical signal, wherein the optical signal output by the laser source is tapped and supplied to a monitoring circuit comprising an optical front end configured to select signal components of the tapped modulated optical signal and to convert the selected signal components of the tapped modulated optical signal into analog signals, and comprising at least one analog-to-digital converter, ADC, adapted to perform equivalent-time sampling of the analog signals to provide digital signals processed by a processing unit to monitor signal quality of the modulated optical signal.

    Abstract translation: 一种具有至少一个光调制器的发射器,其适于调制由激光源输出的光信号以产生经调制的光信号,其中由激光源输出的光信号被抽头并提供给监视电路,该监视电路包括被配置为 选择抽头调制的光信号的信号分量,并将抽头调制的光信号的所选信号分量转换成模拟信号,并且包括至少一个模/数转换器ADC,适于执行模拟的等效时采样 信号以提供由处理单元处理的数字信号,以监测调制光信号的信号质量。

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