公开(公告)号：US11909713B2

公开(公告)日：2024-02-20

申请号：US17306816

申请日：2021-05-03

申请人： Cisco Technology, Inc.

发明人： Vivek Balamurugan ,  Chandra Nagarajan ,  Divjyot Sethi ,  Chaitanya Velpula ,  Manvesh Vyas ,  Ramana Rao Kompella ,  Pradhap Muthuraman

IPC分类号： H04L29/12 ,  H04L12/715 ,  H04L12/743 ,  H04L12/24 ,  H04L29/06 ,  G06F9/455 ,  H04L12/46 ,  H04L61/256 ,  H04L45/64 ,  H04L41/0893 ,  H04L69/22 ,  H04L61/2514 ,  H04L45/745

CPC分类号： H04L61/256 ,  G06F9/45558 ,  H04L12/4641 ,  H04L41/0893 ,  H04L45/64 ,  H04L45/74591 ,  H04L61/2514 ,  H04L69/22 ,  G06F2009/45595 ,  H04L12/4633

摘要： Systems, methods, and computer-readable media relate to providing a network management service. A system is configured to request first network information from a first component of a network using a public IP address for the first component, wherein the first network information includes private IP addresses for a second component in the network and translate, based on a mapping information for a private IP address space to a public IP address space, the private IP address for a second component to a public IP address for the second component. The system is further configured to request second network information from the second component using the public IP address and provide a network management service for the network based on the second network information.

公开(公告)号：US11469952B2

公开(公告)日：2022-10-11

申请号：US16774774

申请日：2020-01-28

申请人： Cisco Technology, Inc.

发明人： Ramana Rao Kompella ,  Chandra Nagarajan ,  John Thomas Monk ,  Purna Mani Kumar Ghantasala

IPC分类号： H04L12/24 ,  H04L29/06 ,  H04L41/0869 ,  H04L41/0686 ,  H04L41/0654 ,  H04L9/40 ,  H04L41/0853 ,  H04L41/0859 ,  H04L41/0893 ,  H04L41/0873 ,  H04L41/12

摘要： Systems, methods, and computer-readable media analyzing memory usage in a network node. A network assurance appliance may be configured to obtain reference concrete level rules for a node in the network, obtain implemented concrete level rules for the node from the node in the network, compare the reference concrete level rules with the implemented concrete level rules, and determining that the implemented concrete level rules are not appropriately configured based on the comparison.

公开(公告)号：US11258657B2

公开(公告)日：2022-02-22

申请号：US16829952

申请日：2020-03-25

申请人： Cisco Technology, Inc.

发明人： Praveen Tammana ,  Chandra Nagarajan ,  Pavan Mamillapalli ,  Ramana Rao Kompella

IPC分类号： H04L12/24 ,  H04L41/0677 ,  H04L41/22 ,  H04L41/0893 ,  H04L41/14 ,  H04L41/147

摘要： 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：US10812318B2

公开(公告)日：2020-10-20

申请号：US15719064

申请日：2017-09-28

申请人： Cisco Technology, Inc.

发明人： Praveen Tammana ,  Chandra Nagarajan ,  Pavan Mamillapalli ,  Ramana Rao Kompella

IPC分类号： H04L12/24

摘要： 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.

公开(公告)号：US20200228395A1

公开(公告)日：2020-07-16

申请号：US16829952

申请日：2020-03-25

申请人： Cisco Technology, Inc.

发明人： Praveen Tammana ,  Chandra Nagarajan ,  Pavan Mamillapalli ,  Ramana Rao Kompella

IPC分类号： H04L12/24

摘要： 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：US20180367416A1

公开(公告)日：2018-12-20

申请号：US15663582

申请日：2017-07-28

申请人： Cisco Technology, Inc.

发明人： Chandra Nagarajan ,  Divjyot Sethi ,  Ramana Rao Kompella

IPC分类号： H04L12/24 ,  H04L12/26 ,  H04L29/08

摘要： Systems, methods, and computer-readable media for collecting node information from a fabric and generating models based on the node information. In some examples, a system can obtain, from one or more controllers in a software-defined network (SDN), a logical model of the SDN, the logical model containing objects configured for the SDN from a hierarchical management information tree (MIT) associated with the SDN and representing configurations of the objects, the hierarchical MIT defining manageable objects and object properties for the SDN, the objects corresponding to the manageable objects. The system can obtain a topological model of a fabric associated with the SDN and, based on the topological model, poll nodes in the fabric for respective configurations at the nodes. Based on the respective configurations, the system can generate a node-specific representation of the logical model, the node-specific representation projecting the logical model on each node.

公开(公告)号：US11736351B2

公开(公告)日：2023-08-22

申请号：US17670036

申请日：2022-02-11

申请人： Cisco Technology, Inc.

发明人： Ramana Rao Kompella ,  Chandra Nagarajan ,  John Thomas Monk ,  Purna Mani Kumar Ghantasala

IPC分类号： H04L41/0853 ,  H04L41/0893 ,  H04L41/14 ,  H04L41/0813 ,  H04L41/12 ,  H04L49/1515 ,  H04L45/64 ,  H04L47/2441 ,  H04L49/10 ,  H04L45/745

CPC分类号： H04L41/0853 ,  H04L41/0893 ,  H04L41/145 ,  H04L41/0813 ,  H04L41/12 ,  H04L45/64 ,  H04L45/74591 ,  H04L47/2441 ,  H04L49/10 ,  H04L49/1515

摘要： Systems, methods, and computer-readable media analyzing memory usage in a network node. A network assurance appliance may be configured to determine a hit count for a concrete level rule implemented on a node and identify one or more components of a logical model, wherein each of the one or more components are associated with the concrete level rule. The network assurance appliance may attribute the hit count for the concrete level rule to each of the components of the logical model, determine a number of hardware level entries associated with the each of the one or more components, and generate a report comprising the one or more components of the logical model, the hit count attributed to each of the one or more components of the logical model, and the number of hardware level entries associated with the one or more components of the logical model.

公开(公告)号：US20210258281A1

公开(公告)日：2021-08-19

申请号：US17306816

申请日：2021-05-03

申请人： Cisco Technology, Inc.

发明人： Vivek Balamurugan ,  Chandra Nagarajan ,  Divjyot Sethi ,  Chaitanya Velpula ,  Manvesh Vyas ,  Ramana Rao Kompella ,  Pradhap Muthuraman

IPC分类号： H04L29/12 ,  H04L12/715 ,  H04L12/743 ,  H04L12/24 ,  H04L29/06 ,  G06F9/455 ,  H04L12/46

摘要： Systems, methods, and computer-readable media relate to providing a network management service. A system is configured to request first network information from a first component of a network using a public IP address for the first component, wherein the first network information includes private IP addresses for a second component in the network and translate, based on a mapping information for a private IP address space to a public IP address space, the private IP address for a second component to a public IP address for the second component. The system is further configured to request second network information from the second component using the public IP address and provide a network management service for the network based on the second network information.

公开(公告)号：US20200177456A1

公开(公告)日：2020-06-04

申请号：US16774774

申请日：2020-01-28

申请人： Cisco Technology, Inc.

发明人： Ramana Rao Kompella ,  Chandra Nagarajan ,  John Thomas Monk ,  Purna Mani Kumar Ghantasala

IPC分类号： H04L12/24 ,  H04L29/06

摘要： Systems, methods, and computer-readable media analyzing memory usage in a network node. A network assurance appliance may be configured to obtain reference concrete level rules for a node in the network, obtain implemented concrete level rules for the node from the node in the network, compare the reference concrete level rules with the implemented concrete level rules, and determining that the implemented concrete level rules are not appropriately configured based on the comparison.

公开(公告)号：US20200007495A1

公开(公告)日：2020-01-02

申请号：US16171771

申请日：2018-10-26

申请人： Cisco Technology, Inc.

发明人： Vivek Balamurugan ,  Chandra Nagarajan ,  Divjyot Sethi ,  Chaitanya Velpula ,  Manvesh Vyas ,  Ramana Rao Kompella ,  Pradhap Muthuraman

IPC分类号： H04L29/12 ,  H04L12/715 ,  H04L12/743 ,  H04L12/24 ,  H04L12/46 ,  H04L29/06 ,  G06F9/455

摘要： Systems, methods, and computer-readable media relate to providing a network management service. A system is configured to request first network information from a first component of a network using a public IP address for the first component, wherein the first network information includes private IP addresses for a second component in the network and translate, based on a mapping information for a private IP address space to a public IP address space, the private IP address for a second component to a public IP address for the second component. The system is further configured to request second network information from the second component using the public IP address and provide a network management service for the network based on the second network information.