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    Route consistency checker for network devices
    3.
    发明授权
    Route consistency checker for network devices 有权

    公开(公告)号：US11165684B2

    公开(公告)日：2021-11-02

    申请号：US16835970

    申请日：2020-03-31

    Applicant: Juniper Networks, Inc.

    Inventor： Vasudevan Navaneetha Krishnan ,  Raveendra Torvi ,  Srikanth Venakta Gandiboyina ,  Ashish Kumar ,  Srihari Ramachandra Sangli ,  Jimmy Jose ,  Amit Arora ,  Harmeet Singh

    IPC: H04L12/66 ,  H04L12/755 ,  H04L12/721 ,  H04L12/46

    Abstract: In general, this disclosure describes a network device that checks consistency between routing objects in a routing information base (RIB), a forwarding information base (FIB), and packet forwarding engine (PFE) forwarding tables. A method includes generating a marker that causes a routing protocol daemon, a control plane kernel, and PFEs of a network device to calculate zonal checksums for a plurality of zones using consistency values for each routing object within a RIB, a FIB, and corresponding forwarding tables respectively. The method includes performing a consistency check on the RIB, the FIB, and the forwarding tables to determine whether the routing objects in each of the RIB, the FIB, and the forwarding tables are consistent with each other. The method includes, when the RIB, the FIB, and the forwarding tables are not consistent, performing an action related to at least one of RIB, the FIB, or the forwarding tables.

    Memory leak detection using real-time memory growth pattern analysis
    4.
    发明授权
    Memory leak detection using real-time memory growth pattern analysis 有权

    公开(公告)号：US11960382B2

    公开(公告)日：2024-04-16

    申请号：US18056834

    申请日：2022-11-18

    Applicant: Juniper Networks, Inc.

    Inventor： Prateek Halwe ,  Amit Arora ,  Harmeet Singh ,  Rahul Chandra Khali

    IPC: G06F11/00 ,  G06F11/14 ,  G06F11/30 ,  G06F11/36

    CPC classification number: G06F11/366 ,  G06F11/1438 ,  G06F11/3037 ,  G06F11/3075 ,  G06F11/3648

    Abstract: The disclosure describes techniques that enable detection of memory leaks of software executing on devices within a computer network. An example network device includes memory and processing circuitry. The processing circuitry monitors a usage of the memory by a software component operating within the network device. The processing circuitry periodically determines a memory growth pattern score for the software component based on the usage of the memory. The processing circuitry also predicts whether the user-level process is experiencing a memory leak based on the memory growth pattern score. The processing circuitry applies confirmation criteria to current memory usage of the software component to confirm that the software component is experiencing the memory leak. When the software component is experiencing the memory leak, the processing circuitry generates an alert.

    MEMORY LEAK DETECTION USING REAL-TIME MEMORY GROWTH PATTERN ANALYSIS
    5.
    发明申请
    MEMORY LEAK DETECTION USING REAL-TIME MEMORY GROWTH PATTERN ANALYSIS 有权

    公开(公告)号：US20230086373A1

    公开(公告)日：2023-03-23

    申请号：US18056834

    申请日：2022-11-18

    Applicant: Juniper Networks, Inc.

    Inventor： Prateek Halwe ,  Amit Arora ,  Harmeet Singh ,  Rahul Chandra Khali

    IPC: G06F11/36 ,  G06F11/14 ,  G06F11/30

    Abstract: The disclosure describes techniques that enable detection of memory leaks of software executing on devices within a computer network. An example network device includes memory and processing circuitry. The processing circuitry monitors a usage of the memory by a software component operating within the network device. The processing circuitry periodically determines a memory growth pattern score for the software component based on the usage of the memory. The processing circuitry also predicts whether the user-level process is experiencing a memory leak based on the memory growth pattern score. The processing circuitry applies confirmation criteria to current memory usage of the software component to confirm that the software component is experiencing the memory leak. When the software component is experiencing the memory leak, the processing circuitry generates an alert.

    Forwarding information base caching
    6.
    发明授权
    Forwarding information base caching 有权

    公开(公告)号：US10742553B1

    公开(公告)日：2020-08-11

    申请号：US15991694

    申请日：2018-05-29

    Applicant: Juniper Networks, Inc.

    Inventor： Reji Thomas ,  Jimmy Jose ,  Amit Arora ,  Sairam Neelam

    IPC: H04L12/28 ,  H04L12/747 ,  H04L29/06 ,  H04L12/741 ,  H04L29/08

    Abstract: A network device may determine a control plane session type associated with a control plane session. The control plane session may be associated with the network device. The network device may determine whether the control plane session type is associated with a forwarding information base (FIB) cache on the network device. The network device may obtain, based on determining that the control plane session type is associated with the FIB cache, forwarding information associated with the control plane session. The forwarding information may be stored in a FIB, associated with the FIB cache, on the network device. The network device may store the forwarding information in the FIB cache and process the control plane session using the forwarding information stored in the FIB cache.

    Selective prioritization of processing of objects
    7.
    发明授权
    Selective prioritization of processing of objects 有权

    公开(公告)号：US10268510B1

    公开(公告)日：2019-04-23

    申请号：US15263775

    申请日：2016-09-13

    Applicant: Juniper Networks, Inc.

    Inventor： Amit Arora ,  Srinivasa DS

    IPC: G06F9/46 ,  G06F9/48 ,  H04L12/751 ,  G06F9/50

    Abstract: A device may receive one or more first objects and one or more second objects to be processed. The device may store, in a first queue, information identifying the one or more first objects, the one or more second objects, and an order in which the one or more first objects and the one or more second objects were received. The device may store, in a second queue, information identifying the one or more first objects based on the one or more first objects being associated with the first priority level. The device may process the one or more first objects and the one or more second objects based on the first queue and the second queue. The device may perform one or more actions based on processing the one or more first objects and the one or more second objects.

    Making transmission control protocol (TCP) sessions robust in a socket replication environment
    8.
    发明授权
    Making transmission control protocol (TCP) sessions robust in a socket replication environment 有权

    公开(公告)号：US11886304B2

    公开(公告)日：2024-01-30

    申请号：US17837355

    申请日：2022-06-22

    Applicant: Juniper Networks, Inc.

    Inventor： Amit Arora ,  Erin C. MacNeil ,  Harmeet Singh ,  Sairam Neelam

    IPC: G06F11/14 ,  G06F11/07

    CPC classification number: G06F11/1464 ,  G06F11/0757 ,  G06F11/1451

    Abstract: A network device may execute a master application communicating with another network device via a session, and may receive, by a backup application replication layer, a replicated data object. The backup application replication layer may provide the replicated data object to a backup application, and may calculate a time delta between when the replicated data object is received and when the replicated data object arrives at the backup application. The backup application replication layer may determine whether the time delta exceeds a first threshold or a second threshold, and may generate a session flag based on the time delta exceeding the first threshold or the second threshold. The backup application replication layer may provide the session flag to a master application replication layer and to the backup application, and the master application replication layer may provide details of the session to the master application and the backup application.

    MEMORY LEAK DETECTION USING REAL-TIME MEMORY GROWTH PATTERN ANALYSIS
    10.
    发明申请
    MEMORY LEAK DETECTION USING REAL-TIME MEMORY GROWTH PATTERN ANALYSIS 有权

    公开(公告)号：US20210397536A1

    公开(公告)日：2021-12-23

    申请号：US17247903

    申请日：2020-12-29

    Applicant: Juniper Networks, Inc.

    Inventor： Prateek Halwe ,  Amit Arora ,  Harmeet Singh ,  Rahul Chandra Khali

    IPC: G06F11/36 ,  G06F11/30 ,  G06F11/14

    Abstract: The disclosure describes techniques that enable detection of memory leaks of software executing on devices within a computer network. An example network device includes memory and processing circuitry. The processing circuitry monitors a usage of the memory by a software component operating within the network device. The processing circuitry periodically determines a memory growth pattern score for the software component based on the usage of the memory. The processing circuitry also predicts whether the user-level process is experiencing a memory leak based on the memory growth pattern score. The processing circuitry applies confirmation criteria to current memory usage of the software component to confirm that the software component is experiencing the memory leak. When the software component is experiencing the memory leak, the processing circuitry generates an alert.

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