公开(公告)号：US10437641B2

公开(公告)日：2019-10-08

申请号：US15796263

申请日：2017-10-27

Applicant: Cisco Technology, Inc.

Inventor： Chetan Narsude ,  Gaurav Gupta ,  Azeem Suleman ,  Shadab Nazar ,  Pavan Mamillapalli ,  Sundar Iyer

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/52 ,  G06F16/951

Abstract: Aspects of the technology provide systems and methods for interleaving a processing task in a network monitoring appliance. A process of the technology could include steps for identifying operators in the network monitoring appliance, wherein the operators are sequentially arranged to form a processing pipeline, determining an epoch for the processing pipeline, wherein the epoch corresponds with a time duration required for a processing task to traverse the pipeline, and determining a time window in which a supplemental processing task can be interleaved into the processing pipeline, wherein the time window is based on the epoch. Machine-readable media are also provided.

公开(公告)号：US20190081871A1

公开(公告)日：2019-03-14

申请号：US15702374

申请日：2017-09-12

Applicant: Cisco Technology, Inc.

Inventor： Shadab Nazar ,  Pavan Mamillapalli ,  Azeem Suleman ,  Jagdev singh Tur ,  Ayas Pani

IPC: H04L12/26

CPC classification number: H04L43/04 ,  H04L41/142 ,  H04L41/22 ,  H04L43/0823

Abstract: Systems, methods, and computer-readable media for detecting and reporting anomalies in a network environment for providing network assurance. In some embodiments, a system can determine confidence scores for at least one value of parameters of a network environment defining network events occurring in the network environment. The confidences scores can indicate a frequency that the defined network events have a specific event state. The confidence scores can be monitored to detect an anomaly in the network environment. In response to detecting the anomaly in the network environment, the system can determine a relevant network state of the network environment. The relevant network state of the network environment and the anomaly in the network environment can be presented to a user.

公开(公告)号：US20180367411A1

公开(公告)日：2018-12-20

申请号：US15792680

申请日：2017-10-24

Applicant: Cisco Technology, Inc.

Inventor： Chetan Narsude ,  Gaurav Gupta ,  Shadab Nazar ,  Pavan Mamillapalli ,  Sundar Iyer

IPC: H04L12/24 ,  H04L12/26 ,  G06F9/50

Abstract: Aspects of the technology provide solutions for determining a time period (“epoch”) required to monitor or analyze a tenant network. Some implementations of the technology include a process for making automatic epoch determinations, which includes steps for identifying one or more network parameters for a tenant network, analyzing the tenant network using the network parameters to discover one or more configuration settings of the tenant network, and determining a first epoch for the tenant network, the first epoch corresponding with a period of time to complete analysis of the tenant network using the network parameters. In some aspects, the process can further include steps for generating a tenant profile for the tenant network, the tenant profile based on the network parameters, the first epoch, and the one or more configuration settings of the tenant network. Systems and machine-readable media are also provided.

公开(公告)号：US20180351788A1

公开(公告)日：2018-12-06

申请号：US15719139

申请日：2017-09-28

Applicant: Cisco Technology, Inc.

Inventor： Praveen Tammana ,  Chandra Nagarajan ,  Pavan Mamillapalli ,  Ramana Rao Kompella

IPC: H04L12/24

Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults.

公开(公告)号：US20180351782A1

公开(公告)日：2018-12-06

申请号：US15719064

申请日：2017-09-28

Applicant: Cisco Technology, Inc.

Inventor： Praveen Tammana ,  Chandra Nagarajan ,  Pavan Mamillapalli ,  Ramana Rao Kompella

IPC: H04L12/24

CPC classification number: H04L41/0631 ,  H04L41/064 ,  H04L41/069

Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults. The identified set of policy objects are correlated with various logs of the network. Based on the correlation, specific policy objects of the set of policy objects that are associated with physical-level causes of the fault.