公开(公告)号：US11526426B2

公开(公告)日：2022-12-13

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 ,  G06F11/14 ,  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.

公开(公告)号：US20210306249A1

公开(公告)日：2021-09-30

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: H04L12/755

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.