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公开(公告)号：US11050640B1
公开(公告)日：2021-06-29
申请号：US16713569
申请日：2019-12-13
Applicant: Cisco Technology, Inc.
Inventor： Dinesh Ranjit , Pradeep Kanavihalli Subramanyasetty , Shiva Prasad Rao , Dhanashree Somnath Gosavi , Colt Ashton Campbell , Prafulla Harpanhalli
Abstract: Systems, methods, and computer-readable media for providing throughput assurance in a virtual service chain. A virtual service chain formed by a plurality of stitched virtualized network functions running on a plurality of virtual nodes can be monitored. An inline statistics agent can generate inline statistics of the operation of the virtual service chain. Further, an actual throughput of the virtual service chain can be identified from the inline statistics. As follows, throughput assurance for the virtual service chain can be provided by comparing the actual throughput of the virtual service chain with an expected throughput of the virtual service chain.
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公开(公告)号：US20170317936A1
公开(公告)日：2017-11-02
申请号：US15140870
申请日：2016-04-28
Applicant: Cisco Technology, Inc.
Inventor： Nagarajan Swaminathan , Dinesh Ranjit , Daniel Freedman
IPC: H04L12/813 , H04L29/12 , H04L12/741 , H04L29/06 , H04L12/725
CPC classification number: H04L47/20 , H04L41/0893 , H04L45/302 , H04L45/74 , H04L63/105
Abstract: A classifier network element in a service function chain system receives a classification policy and an access policy from a controller of the service function chain system. The classification policy identifies which service function path network traffic flows will traverse through the service function chain system. The access policy defines criteria for determining whether network traffic flows will be sent along a service function path of the service function chain system. The classifier network element receives an initial packet of a network traffic flow from a source endpoint directed to a destination endpoint. Responsive to a determination that the initial packet of the network traffic flow satisfies the criteria of the access policy, the classifier network element applies the access policy to the network traffic flow.
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Patent Agency Ranking
公开(公告)号：US20210184945A1
公开(公告)日：2021-06-17
申请号：US16713569
申请日：2019-12-13
Applicant: Cisco Technology, Inc.
Inventor： Dinesh Ranjit , Pradeep Kanavihalli Subramanyasetty , Shiva Prasad Rao , Dhanashree Somnath Gosavi , Colt Ashton Campbell , Prafulla Harpanhalli
Abstract: Systems, methods, and computer-readable media for providing throughput assurance in a virtual service chain. A virtual service chain formed by a plurality of stitched virtualized network functions running on a plurality of virtual nodes can be monitored. An inline statistics agent can generate inline statistics of the operation of the virtual service chain. Further, an actual throughput of the virtual service chain can be identified from the inline statistics. As follows, throughput assurance for the virtual service chain can be provided by comparing the actual throughput of the virtual service chain with an expected throughput of the virtual service chain.
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公开(公告)号：US20190068476A1
公开(公告)日：2019-02-28
申请号：US15685237
申请日：2017-08-24
Applicant: Cisco Technology, Inc.
Inventor： Dinesh Ranjit , Jim French , Nagi Swaminathan
Abstract: The subject disclosure relates to methods for monitoring virtual network functions (VNFs) using mirror-ports provided on a virtual switch. A method of the technology can include steps for detecting an instantiation of a virtual network function (VNF), receiving a plurality of operating parameters for the VNF, connecting the VNF with a virtual switch, and automatically discovering an Internet Protocol (IP) address of the VNF. In some aspects, the method can further include operations for instantiating a mirror-port on the virtual switch, the mirror-port configured to provide a communications interface for monitoring the VNF based on a monitoring parameter. Systems and computer-readable media are also provided.
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公开(公告)号：US11362883B1
公开(公告)日：2022-06-14
申请号：US17200259
申请日：2021-03-12
Applicant: Cisco Technology, Inc.
Inventor： Dinesh Ranjit , Ramanathan Lakshmikanthan , Vijay Padmanabhan
IPC: G06F15/173 , H04L41/06 , G06F9/455 , H04L49/00
Abstract: Presented herein are methodologies for tracking a link state of a physical network connection and selectively reporting the link state to virtual machines that rely on the physical network connection. A method includes receiving an indication, at a hypervisor, which is running on a host computer and which instantiates a virtual switch, that a physical link interconnecting the host computer to a network has failed; determining that the physical link serves the virtual switch; determining whether link state tracking is enabled for the physical link; and when link state tracking is enabled for the physical link, notifying a virtual machine, which is running on the host computer and which is being served by the virtual switch, that a connection between the virtual machine and the network has failed.
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公开(公告)号：US11063856B2
公开(公告)日：2021-07-13
申请号：US15685237
申请日：2017-08-24
Applicant: Cisco Technology, Inc.
Inventor： Dinesh Ranjit , Jim French , Nagi Swaminathan
Abstract: The subject disclosure relates to methods for monitoring virtual network functions (VNFs) using mirror-ports provided on a virtual switch. A method of the technology can include steps for detecting an instantiation of a virtual network function (VNF), receiving a plurality of operating parameters for the VNF, connecting the VNF with a virtual switch, and automatically discovering an Internet Protocol (IP) address of the VNF. In some aspects, the method can further include operations for instantiating a mirror-port on the virtual switch, the mirror-port configured to provide a communications interface for monitoring the VNF based on a monitoring parameter. Systems and computer-readable media are also provided.
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公开(公告)号：US10992515B1
公开(公告)日：2021-04-27
申请号：US16435895
申请日：2019-06-10
Applicant: Cisco Technology, Inc.
Inventor： Dinesh Ranjit , Ramanathan Lakshmikanthan , Vijay Padmanabhan
IPC: G06F15/16 , H04L12/24 , G06F9/455 , H04L12/931
Abstract: Presented herein are methodologies for tracking a link state of a physical network connection and selectively reporting the link state to virtual machines that rely on the physical network connection. A method includes receiving an indication, at a hypervisor, which is running on a host computer and which instantiates a virtual switch, that a physical link interconnecting the host computer to a network has failed; determining that the physical link serves the virtual switch; determining whether link state tracking is enabled for the physical link; and when link state tracking is enabled for the physical link, notifying a virtual machine, which is running on the host computer and which is being served by the virtual switch, that a connection between the virtual machine and the network has failed.
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