Sarah A Evans

US Patent:

20220377089, Nov 24, 2022

Filed:

Aug 5, 2022

Appl. No.:

17/817724

Inventors:

- San Jose CA, US
Vinay Prabhu - Milpitas CA, US
Sarah Adelaide Evans - San Jose CA, US
Suraj Rangaswamy - San Jose CA, US

International Classification:

H04L 9/40
H04L 45/00
H04L 61/4511

Abstract:

Systems and methods provide for synergistic domain name system DNS security updates for an enterprise network operating under a Software Defined Wide Area Network (SD-WAN). A system may be configured to collect positive and/or negative unified threat defense (UTD) results, deploy a rules-based model that, when a threat or clearance is detected across several SD-WAN edge network devices, triggers an update to a local security blacklist/whitelist, wherein the update comprises a signature, and push the update to other devices that have not yet seen the threat or clearance.

US Patent:

20210105185, Apr 8, 2021

Filed:

Oct 2, 2019

Appl. No.:

16/590948

Inventors:

- San Jose CA, US
Vinay Prabhu - Milpitas CA, US
Sarah Adelaide Evans - San Jose CA, US
Suraj Rangaswamy - San Jose CA, US

International Classification:

H04L 12/24
H04L 12/743

Abstract:

Systems, methods, and computer-readable media for scaling a source network. A system may be configured to receive a network configuration for a source network, wherein the source network comprising a plurality of nodes, receive and a scale target for a scaled network, and identify, based on the scale target, one or more selected nodes in the plurality of nodes in the source network for implementing in the scaled network. The system may further be configured to reconfigure data plane parameters and control plane parameters for each node in the one or more selected nodes.

US Patent:

20210037091, Feb 4, 2021

Filed:

Jul 30, 2019

Appl. No.:

16/526722

Inventors:

- San Jose CA, US
Sarah Adelaide Evans - San Jose CA, US
Jigar Dinesh Parekh - Fremont CA, US
Suraj Rangaswamy - San Jose CA, US

International Classification:

H04L 29/08
H04L 12/26
H04L 12/715

Abstract:

The present disclosure is directed to a peer node discovery process whereby a network management node can discover peers of inaccessible nodes that have lost connectivity to the network management node over the control plane and receive health report of the inaccessible nodes via the discovered peers. In one example, a method includes detecting a loss of connectivity to a network node; based on a type of the network node, performing one of a first process or a second process to obtain a health report of the network node, the first process and the second process including identification of at least one corresponding peer node from which the health report of the network node is to be received; and analyzing the health report to determine root cause of the loss of connectivity.

US Patent:

20200382381, Dec 3, 2020

Filed:

May 29, 2019

Appl. No.:

16/424776

Inventors:

- San Jose CA, US
Sarah Adelaide Evans - San Jose CA, US
Jigar Dinesh Parekh - Fremont CA, US
Suraj Rangaswamy - San Jose CA, US
Parth Sanjiv Doshi - San Jose CA, US
Pranav Narasimmaraj - Pleasanton CA, US
Ashish Shendure - Santa Clara CA, US

International Classification:

H04L 12/24

Abstract:

Systems, methods, and computer-readable media for designing network performance and configuration include determining one or more use cases for a network to be provisioned, based on at least one or more business verticals related to a customer of the network. A data plane scale is determined from the use cases and an initial data plane scale generated using a linear regression on one or more data plane parameters. The data plane parameters include a platform type, feature set, packet size, or software version of the network. A control plane scale is determined from the use cases and an initial control plane scale generated using a linear regression on one or more control plane parameters of the network. The control plane parameters include a platform type, feature set, or software version of the network. The network is provisioned for the data plane scale and the control plane scale.

US Patent:

20200177550, Jun 4, 2020

Filed:

Jun 6, 2019

Appl. No.:

16/434115

Inventors:

- San Jose CA, US
Saravanan Radhakrishnan - Whitefield, IN
Anand Oswal - Pleasanton CA, US
Vinay Prabhu - Milpitas CA, US
Sarah Adelaide Evans - San Jose CA, US
Suraj Rangaswamy - San Jose CA, US

International Classification:

H04L 29/06
H04L 12/46
H04L 12/741
H04L 12/751

Abstract:

Systems and methods provide for provisioning a dynamic intent-based firewall. A network controller can generate a master route table for network segments reachable from edge network devices managed by the controller. The controller can receive zone definition information mapping the network segments into zones and Zone-based Firewall (ZFW) policies to apply to traffic between a source and destination zone specified by each ZFW policy. The controller can evaluate a ZFW policy to determine first edge network devices that can reach first network segments mapped to the source zone specified by the ZFW policy, second edge network devices that can reach second network segments mapped to the destination zone specified by the ZFW policy, and routing information (from the route table) between the first network segments, the first and second edge network devices, and the second network segments. The controller can transmit the routing information to the edge network devices.

US Patent:

20200177606, Jun 4, 2020

Filed:

Sep 11, 2019

Appl. No.:

16/567435

Inventors:

- San Jose CA, US
Vinay Prabhu - Milpitas CA, US
Sarah Adelaide Evans - San Jose CA, US
Suraj Rangaswamy - San Jose CA, US

International Classification:

H04L 29/06
H04L 29/12

Abstract:

Systems and methods provide for synergistic domain name system DNS security updates for an enterprise network operating under a Software Defined Wide Area Network (SD-WAN). A system may be configured to collect positive and/or negative unified threat defense (UTD) results, deploy a rules-based model that, when a threat or clearance is detected across several SD-WAN edge network devices, triggers an update to a local security blacklist/whitelist, wherein the update comprises a signature, and push the update to other devices that have not yet seen the threat or clearance.