公开(公告)号：US20240340347A1

公开(公告)日：2024-10-10

申请号：US18349778

申请日：2023-07-10

Applicant: Cisco Technology, Inc.

Inventor： Prosenjit Sarkar ,  Satish Kumar Mahadevan ,  Ravi Kiran Chintallapudi ,  Mahendra Kumar Samarya

IPC: H04L67/141 ,  H04L41/0803

CPC classification number: H04L67/141 ,  H04L41/0803

Abstract: Disclosed herein are systems, methods, and computer-readable media for upgrading vSmart controllers. In one aspect, a method includes an edge router receiving a notification from a vSmart controller that an upgrade to the controller will occur. The notification can be dynamically triggered by a centralized network management system. In some embodiments, the vSmart controller can run as a virtual machine (VM) and maintains a control plane connection with one or more edge routers in an overlay network. In response to the notification, a length of time of an expiry timer in which the edge router attempts to connect to the vSmart controller can be increased, and the edge router can connect to the vSmart controller once the increased length of time has passed.

公开(公告)号：US20200162371A1

公开(公告)日：2020-05-21

申请号：US16544753

申请日：2019-08-19

Applicant: Cisco Technology, Inc.

Inventor： Amarender Musku ,  Mahendra Kumar Samarya ,  Harini Venkateswaran

IPC: H04L12/725 ,  H04L12/715 ,  H04L12/733 ,  H04L12/741

Abstract: Systems and methods provide for route optimization using real time traffic feedback. A network management system can subscribe to receive streaming telemetry (e.g., at line rate) for traffic associated with one or more managed network entities (e.g., flows, sites, networks, network devices, endpoints, applications, etc.) selected for route optimization. The network management system can determine a set of possible routes for the traffic. The network management system can compute metrics (e.g., packet loss, bit rate, throughput, delay, availability, jitter, etc.) for a set of possible routes for the traffic based on the streaming telemetry. The network management system can determine an optimal route from the set of possible routes based on the metrics. The network management system can inject the optimal route into the one or more network devices receiving the traffic to override a native route (e.g., determined by a routing protocol executed by the network devices).

公开(公告)号：US12184736B2

公开(公告)日：2024-12-31

申请号：US18349778

申请日：2023-07-10

Applicant: Cisco Technology, Inc.

Inventor： Prosenjit Sarkar ,  Satish Kumar Mahadevan ,  Ravi Kiran Chintallapudi ,  Mahendra Kumar Samarya

IPC: H04L67/141 ,  H04L41/0803

Abstract: Disclosed herein are systems, methods, and computer-readable media for upgrading vSmart controllers. In one aspect, a method includes an edge router receiving a notification from a vSmart controller that an upgrade to the controller will occur. The notification can be dynamically triggered by a centralized network management system. In some embodiments, the vSmart controller can run as a virtual machine (VM) and maintains a control plane connection with one or more edge routers in an overlay network. In response to the notification, a length of time of an expiry timer in which the edge router attempts to connect to the vSmart controller can be increased, and the edge router can connect to the vSmart controller once the increased length of time has passed.

公开(公告)号：US20250016236A1

公开(公告)日：2025-01-09

申请号：US18894144

申请日：2024-09-24

Applicant: Cisco Technology, Inc.

Inventor： Prosenjit Sarkar ,  Satish Kumar Mahadevan ,  Ravi Kiran Chintallapudi ,  Mahendra Kumar Samarya

IPC: H04L67/141 ,  H04L41/0803

Abstract: Disclosed herein are systems, methods, and computer-readable media for upgrading vSmart controllers. In one aspect, a method includes an edge router receiving a notification from a vSmart controller that an upgrade to the controller will occur. The notification can be dynamically triggered by a centralized network management system. In some embodiments, the vSmart controller can run as a virtual machine (VM) and maintains a control plane connection with one or more edge routers in an overlay network. In response to the notification, a length of time of an expiry timer in which the edge router attempts to connect to the vSmart controller can be increased, and the edge router can connect to the vSmart controller once the increased length of time has passed.

公开(公告)号：US10999189B2

公开(公告)日：2021-05-04

申请号：US16544753

申请日：2019-08-19

Applicant: Cisco Technology, Inc.

Inventor： Amarender Musku ,  Mahendra Kumar Samarya ,  Harini Venkateswaran

IPC: H04L12/66 ,  H04L12/725 ,  H04L12/715 ,  H04L12/741 ,  H04L12/733

Abstract: Systems and methods provide for route optimization using real time traffic feedback. A network management system can subscribe to receive streaming telemetry (e.g., at line rate) for traffic associated with one or more managed network entities (e.g., flows, sites, networks, network devices, endpoints, applications, etc.) selected for route optimization. The network management system can determine a set of possible routes for the traffic. The network management system can compute metrics (e.g., packet loss, bit rate, throughput, delay, availability, jitter, etc.) for a set of possible routes for the traffic based on the streaming telemetry. The network management system can determine an optimal route from the set of possible routes based on the metrics. The network management system can inject the optimal route into the one or more network devices receiving the traffic to override a native route (e.g., determined by a routing protocol executed by the network devices).

公开(公告)号：US10305879B2

公开(公告)日：2019-05-28

申请号：US15582647

申请日：2017-04-29

Applicant: Cisco Technology, Inc.

Inventor： Selvaraj Mani ,  Deep Preet Singh ,  Mahendra Kumar Samarya

IPC: G06F7/04 ,  G06F15/16 ,  G06F17/30 ,  H04L29/06 ,  H04L29/12 ,  H04L29/08

Abstract: In one embodiment, a server receives an authentication request from a device in a computer network, and authenticates the device. Then, upon receiving a service announcement from the authenticated device, the server determines authenticity of the service announcement from the authenticated device, and redistributes the service announcement into the computer network only when the service announcement from the authenticated device is an authentic service announcement.

公开(公告)号：US20180316655A1

公开(公告)日：2018-11-01

申请号：US15582647

申请日：2017-04-29

Applicant: Cisco Technology, Inc.

Inventor： Selvaraj Mani ,  Deep Preet Singh ,  Mahendra Kumar Samarya

IPC: H04L29/06 ,  H04L29/12 ,  H04L29/08

CPC classification number: H04L63/08 ,  H04L61/1511 ,  H04L61/1541 ,  H04L67/16

Abstract: In one embodiment, a server receives an authentication request from a device in a computer network, and authenticates the device. Then, upon receiving a service announcement from the authenticated device, the server determines authenticity of the service announcement from the authenticated device, and redistributes the service announcement into the computer network only when the service announcement from the authenticated device is an authentic service announcement.