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    MULTI-HOP PHYSICAL LAYER DATA COLLECTION PROTOCOL
    12.
    发明申请
    MULTI-HOP PHYSICAL LAYER DATA COLLECTION PROTOCOL 有权

    公开(公告)号：US20220103473A1

    公开(公告)日：2022-03-31

    申请号：US17032450

    申请日：2020-09-25

    Applicant: Juniper Networks, Inc.

    Inventor： Manish Talwar ,  Ajay Kachrani ,  Gert Grammel ,  Hao Wang ,  Tanweer Biswas

    IPC: H04L12/741 ,  H04L12/751 ,  H04L29/06

    Abstract: Disclosed embodiments utilize a layer three and/or layer four protocol to collect physical layer properties along a multi-hop network path between a source node and a destination node. The use of a layer three or layer four protocol provides an ability to span multiple links or networks between the source node and destination node, while also collecting the physical layer properties. Once physical layer properties along a network path can be understood, decisions relating to the configuration of the network path and/or whether to communicate via the network path are improved.

    Apparatus, systems, and methods for optical channel management
    13.
    发明授权
    Apparatus, systems, and methods for optical channel management 有权

    公开(公告)号：US11044035B2

    公开(公告)日：2021-06-22

    申请号：US16836102

    申请日：2020-03-31

    Applicant: Juniper Networks, Inc.

    Inventor： Gert Grammel ,  Ajay Kachrani ,  Patrick Michael McEachern

    IPC: H04J14/02 ,  H04L12/721 ,  H04Q11/00 ,  H04B10/079 ,  H04B10/077

    Abstract: An apparatus includes a reconfigurable optical add/drop multiplexer (ROADM) having an input port to receive a first optical signal from a second device. The ROADM also includes a first wavelength selective switch (WSS), in optical communication with the input port, to convert the first optical signal into a second optical signal, a loopback, in optical communication with the first WSS, to transmit the second optical signal, and a second WSS, in optical communication with the loopback, to convert the second optical signal to a third optical signal and direct the third optical signal back to the second device via the input port.

    Data center packet optical transport failure protection
    14.
    发明授权
    Data center packet optical transport failure protection 有权

    公开(公告)号：US10469921B2

    公开(公告)日：2019-11-05

    申请号：US15923713

    申请日：2018-03-16

    Applicant: Juniper Networks, Inc.

    Inventor： Gert Grammel ,  Antoni B Przygienda

    IPC: H04B10/00 ,  H04Q11/00 ,  H04L12/707 ,  H04L12/703 ,  H04L12/24 ,  H04J14/02

    Abstract: In response to a connectivity disruption in an underlying optical transport ring supporting a routing and packet switching topology, one or more of optical devices of the optical transport ring are modified to establish connectivity between spine nodes in different data centers to reroute communication between at least a subset of the leaf network devices so as to traverse an inter-spine route via the optical modified optical transport ring. That is, in response to a connectivity disruption in a portion of underlying optical transport ring, one or more optical devices within the optical transport ring are modified such that packets between at least a portion of the leaf devices are rerouted along optical paths between at least two of the spine network devices.

    HYPOTHESIS DRIVEN DIAGNOSIS OF NETWORK SYSTEMS
    19.
    发明公开
    HYPOTHESIS DRIVEN DIAGNOSIS OF NETWORK SYSTEMS 审中-公开

    公开(公告)号：US20240097968A1

    公开(公告)日：2024-03-21

    申请号：US18523569

    申请日：2023-11-29

    Applicant: Juniper Networks, Inc.

    Inventor： Gert Grammel ,  Jayanthi R ,  Chandrasekhar A

    IPC: H04L41/0631 ,  H04L41/069

    CPC classification number: H04L41/0631 ,  H04L41/069

    Abstract: An example method includes obtaining, by one or more processors, data indicating resource dependencies between a plurality of resources in a network and event dependencies between a plurality of network events and one or more of the plurality of resources; generating a Bayesian model based on resource types of the plurality of resources and event types of the plurality of network events; receiving an indication of a fault in the network; collecting fault data and generating, based on the Bayesian model and the fault data, a plurality of root cause hypotheses for the fault; ordering the plurality of root cause hypotheses based on respective root cause probabilities associated with the plurality of root cause hypotheses; and outputting the ordered plurality of root cause hypotheses.

    Detecting a transceiver using a noise optical signal
    20.
    发明授权
    Detecting a transceiver using a noise optical signal 有权

    公开(公告)号：US10547379B2

    公开(公告)日：2020-01-28

    申请号：US15978792

    申请日：2018-05-14

    Applicant: Juniper Networks, Inc.

    Inventor： Massimiliano Salsi ,  Domenico Di Mola ,  Gert Grammel

    IPC: H04J14/00 ,  H04B10/077

    Abstract: A method may include causing a signal to be transmitted that includes a plurality of wavelengths. The signal may be transmitted via an optical fiber that is associated with a particular wavelength. The particular wavelength may be included in the plurality of wavelengths. The method may include filtering the signal, based on the particular wavelength, to generate a filtered signal. The filtered signal may include the particular wavelength. The method may include detecting the filtered signal in association with the optical fiber. The method may include determining the particular wavelength based on the filtered signal. The method may include storing or providing information identifying at least one of the particular wavelength, the optical fiber, or a transmitter that transmitted the signal.

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