公开(公告)号：US20180367399A1

公开(公告)日：2018-12-20

申请号：US15662464

申请日：2017-07-28

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay Harneja ,  Manali Holankar

IPC: H04L12/24 ,  H04L12/26

Abstract: Systems, methods, and computer-readable media are disclosed for validating endpoint information for nodes in a network. A network assurance appliance is configured to retrieve first endpoint information about endpoints in the network from one or more spine nodes in a network and second endpoint information about the endpoints in the network from one or more leaf nodes in the network. The network assurance appliance compares the first endpoint information with the second endpoint information and generates an event based on the comparison.

公开(公告)号：US11038743B2

公开(公告)日：2021-06-15

申请号：US16806785

申请日：2020-03-02

Applicant: Cisco Technology, Inc.

Inventor： Shadab Nazar ,  Azeem Suleman ,  Ayas Pani

IPC: H04L12/24

Abstract: Systems, methods, and computer-readable media for clustering events occurring in a network environment for providing network assurance. In one embodiment, a system can identify event states of network events defined by values of parameters of a network environment. The system can determine a confidence score that at least one of the values of parameters is associated with a specific event state using the network events and the identified event states of the network events. The confidence score can be presented to a user for purposes of providing network assurance for the network environment.

公开(公告)号：US20210176130A1

公开(公告)日：2021-06-10

申请号：US17110761

申请日：2020-12-03

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay Harneja ,  Manali Holankar

IPC: H04L12/24 ,  H04L12/26

Abstract: Systems, methods, and computer-readable media are disclosed for validating endpoint information for nodes in a network. A network assurance appliance is configured to retrieve, from a first leaf node in a network, first endpoint information for a first set of endpoints connected to the first leaf node, wherein the first set of endpoints includes a virtual port channel (VPC) endpoint. The network assurance appliance retrieves second endpoint information from a second node in the network, compares the first endpoint information with the second endpoint information, and identifies an inconsistency when the first endpoint information and the second endpoint information do not match.

公开(公告)号：US20200007441A1

公开(公告)日：2020-01-02

申请号：US16565084

申请日：2019-09-09

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay Harneja

IPC: H04L12/753 ,  H04L12/24 ,  H04L12/751

Abstract: Systems, methods, and computer-readable media for validating routing table information in a network. A network assurance appliance may be configured to retrieve routing table information from a plurality of nodes in a network fabric. The routing table information includes path information from at least one source node to at least one destination node. A graph representation of the routing table information is constructed with the at least one destination node as a sink vertex for the graph representation. The network assurance appliance determines, for each leaf node in the network fabric, whether the leaf node can reach the sink vertex based on the graph representation and determines that there is a misconfiguration of the network fabric based on whether each leaf node in the fabric can reach the sink vertex.

公开(公告)号：US20190149415A1

公开(公告)日：2019-05-16

申请号：US16243674

申请日：2019-01-09

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay ,  Gaurav Gupta

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/781

Abstract: Systems, methods, and computer-readable media for validating routing table information in a network. A network assurance appliance may be configured to retrieve implemented MP-BGP configuration data from a plurality of nodes in a network fabric and reference MP-BGP configuration data from a network controller. The network assurance appliance compares the implemented MP-BGP configuration data with the reference MP-BGP configuration data and determines that there is a MP-BGP misconfiguration of the implemented MP-BGP configuration data based on differences in the implemented MP-BGP configuration data and the reference MP-BGP configuration data.

公开(公告)号：US10218572B2

公开(公告)日：2019-02-26

申请号：US15661944

申请日：2017-07-27

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay Harneja ,  Gaurav Gupta

IPC: H04L12/46 ,  H04L12/24 ,  H04L29/06

Abstract: Systems, methods, and computer-readable media for validating routing table information in a network. A network assurance appliance may be configured to retrieve implemented MP-BGP configuration data from a plurality of nodes in a network fabric and reference MP-BGP configuration data from a network controller. The network assurance appliance compares the implemented MP-BGP configuration data with the reference MP-BGP configuration data and determines that there is a MP-BGP misconfiguration of the implemented MP-BGP configuration data based on differences in the implemented MP-BGP configuration data and the reference MP-BGP configuration data.

公开(公告)号：US20180367429A1

公开(公告)日：2018-12-20

申请号：US15662455

申请日：2017-07-28

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay Harneja ,  Manali Holankar ,  Vikram Subramanya

IPC: H04L12/26 ,  H04L12/24

CPC classification number: H04L43/0817 ,  H04L12/6418 ,  H04L41/044 ,  H04L41/0654 ,  H04L41/0681 ,  H04L41/08 ,  H04L41/0866 ,  H04L41/0893 ,  H04L41/12 ,  H04L41/145 ,  H04L41/50 ,  H04L43/12 ,  H04L45/28

Abstract: Systems, methods, and computer-readable media are disclosed for validating endpoint information for nodes in a network. A network assurance appliance is configured to retrieve a configured static endpoint information in a logical model of a network from a network controller and connected static endpoint information from one or more nodes in the network. The network assurance appliance determines that there is an inconsistency based on a comparison of the configured static endpoint information and the connected static endpoint information and generating an event specifying the inconsistency.

公开(公告)号：US20180367391A1

公开(公告)日：2018-12-20

申请号：US15663609

申请日：2017-07-28

Applicant: Cisco Technology, Inc.

Inventor： Sanchay Harneja ,  Ayas Pani ,  Sanjay Sundaresan ,  Harsha Jagannati

IPC: H04L12/24

CPC classification number: H04L41/0866 ,  H04L41/0266 ,  H04L41/0853 ,  H04L41/0873 ,  H04L41/0893 ,  H04L41/12

Abstract: Disclosed are systems, methods, and computer-readable media for assuring tenant forwarding in a network environment. Network assurance can be determined in layer 1, layer 2 and layer 3 of the networked environment including, internal-internal (e.g., inter-fabric) forwarding and internal-external (e.g., outside the fabric) forwarding in the networked environment. The network assurance can be performed using logical configurations, software configurations and/or hardware configurations

公开(公告)号：US11716265B2

公开(公告)日：2023-08-01

申请号：US17401354

申请日：2021-08-13

Applicant: Cisco Technology, Inc.

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

IPC: G06F15/173 ,  H04L43/04 ,  H04L43/0823 ,  H04L41/142 ,  H04L41/22

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

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：US11102111B2

公开(公告)日：2021-08-24

申请号：US16565084

申请日：2019-09-09

Applicant: Cisco Technology, Inc.

Inventor： Ayas Pani ,  Sanchay Harneja

IPC: H04L12/753 ,  H04L12/24 ,  H04L12/751 ,  H04L12/745 ,  H04L12/26 ,  H04L12/713 ,  H04L12/947 ,  H04L12/931

Abstract: Systems, methods, and computer-readable media for validating routing table information in a network. A network assurance appliance may be configured to retrieve routing table information from a plurality of nodes in a network fabric. The routing table information includes path information from at least one source node to at least one destination node. A graph representation of the routing table information is constructed with the at least one destination node as a sink vertex for the graph representation. The network assurance appliance determines, for each leaf node in the network fabric, whether the leaf node can reach the sink vertex based on the graph representation and determines that there is a misconfiguration of the network fabric based on whether each leaf node in the fabric can reach the sink vertex.