Scott Joseph Shenker

US Patent:

20090138577, May 28, 2009

Filed:

Sep 26, 2008

Appl. No.:

12/286098

Inventors:

Martin Casado - Menlo Park CA, US
Keith Eric Amidon - Los Altos CA, US
Natasha Gude - Palo Alto CA, US
Justin Pettit - San Jose CA, US
Benjamin Levy Pfaff - Redwood City CA, US
Scott J. Shenker - Palo Alto CA, US
Daniel J. Wendlandt - Palo Alto CA, US

Assignee:

Nicira Networks - Palo Alto CA

International Classification:

G06F 15/177
G06F 15/173

US Classification:

709220, 709223, 709225, 709224

Abstract:

Systems and methods for managing a network are described. A view of current state of the network is maintained where the current state of the network characterizes network topology and network constituents, including network entities and network elements residing in or on the network. Events are announced that correspond to changes in the state of the network and one or more network elements can be configured accordingly. Methods for managing network traffic are described that ensure forwarding and other actions taken by network elements implement globally declared network policy and refer to high-level names, independently of network topology and the location of network constituents. Methods for discovering network constituents are described, whereby are automatically configured. Routing may be performed using ACL and packets can be intercepted to permit host to continue in sleep mode. The methods are applicable to virtual environments.

US Patent:

20080189769, Aug 7, 2008

Filed:

Jan 8, 2008

Appl. No.:

11/970976

Inventors:

Martin Casado - Menlo Park CA, US
Nick Mckeown - Palo Alto CA, US
Dan Boneh - Palo Alto CA, US
Michael J. Freedman - Kingston PA, US
Scott Shenker - Palo Alto CA, US

International Classification:

G06F 21/22
H04L 9/32

US Classification:

726 4

Abstract:

Use of a centralized control architecture in a network. Policy declaration, routing computation, and permission checks are managed by a logically centralized controller. By default, hosts on the network can only route to the network controller. Hosts and users must first authenticate themselves with the controller before they can request access to the network resources. The controller uses the first packet of each flow for connection setup. When a packet arrives at the controller, the controller decides whether the flow represented by that packet should be allowed. The switches use a simple flow table to forward packets under the direction of the controller. When a packet arrives that is not in the flow table, it is forwarded to the controller, along with information about which port the packet arrived on. When a packet arrives that is in the flow table, it is forwarded according to the controller's directive.

US Patent:

20210021455, Jan 21, 2021

Filed:

Aug 2, 2020

Appl. No.:

16/945913

Inventors:

- Palo Alto CA, US
Keith E. Amidon - Los Altos CA, US
Natasha Gude - Palo Alto CA, US
Justin Pettit - Los Altos Hills CA, US
Benjamin L. Pfaff - Redwood City CA, US
Scott J. Shenker - Palo Alto CA, US
Daniel J. Wendlandt - Los Altos CA, US

International Classification:

H04L 12/24
H04L 12/26

Abstract:

Systems and methods for managing a network are described. A view of current state of the network is maintained where the current state of the network characterizes network topology and network constituents, including network entities and network elements residing in or on the network. Events are announced that correspond to changes in the state of the network and one or more network elements can be configured accordingly. Methods for managing network traffic are described that ensure forwarding and other actions taken by network elements implement globally declared network policy and refer to high-level names, independently of network topology and the location of network constituents. Methods for discovering network constituents are described, whereby are automatically configured. Routing may be performed using ACL and packets can be intercepted to permit host to continue in sleep mode. The methods are applicable to virtual environments.

US Patent:

20180102937, Apr 12, 2018

Filed:

Dec 11, 2017

Appl. No.:

15/838317

Inventors:

- Palo Alto CA, US
Keith E. Amidon - Los Altos CA, US
Natasha Gude - Palo Alto CA, US
Justin Pettit - Los Altos Hills CA, US
Benjamin L. Pfaff - Redwood City CA, US
Scott J. Shenker - Palo Alto CA, US
Daniel J. Wendlandt - Los Altos CA, US

International Classification:

H04L 12/24
H04L 12/26

Abstract:

Systems and methods for managing a network are described. A view of current state of the network is maintained where the current state of the network characterizes network topology and network constituents, including network entities and network elements residing in or on the network. Events are announced that correspond to changes in the state of the network and one or more network elements can be configured accordingly. Methods for managing network traffic are described that ensure forwarding and other actions taken by network elements implement globally declared network policy and refer to high-level names, independently of network topology and the location of network constituents. Methods for discovering network constituents are described, whereby are automatically configured. Routing may be performed using ACL and packets can be intercepted to permit host to continue in sleep mode. The methods are applicable to virtual environments.

US Patent:

20160013969, Jan 14, 2016

Filed:

Jun 22, 2015

Appl. No.:

14/746816

Inventors:

- Palo Alto CA, US
Keith E. Amidon - Los Altos CA, US
Natasha Gude - San Francisco CA, US
Justin Pettit - Los Altos Hills CA, US
Benjamin Levy Pfaff - Redwood City CA, US
Scott J. Shenker - Palo Alto CA, US
Daniel J. Wendlandt - Palo Alto CA, US

International Classification:

H04L 12/24

Abstract:

Systems and methods for managing a network are described. A view of current state of the network is maintained where the current state of the network characterizes network topology and network constituents, including network entities and network elements residing in or on the network. Events are announced that correspond to changes in the state of the network and one or more network elements can be configured accordingly. Methods for managing network traffic are described that ensure forwarding and other actions taken by network elements implement globally declared network policy and refer to high-level names, independently of network topology and the location of network constituents. Methods for discovering network constituents are described, whereby are automatically configured. Routing may be performed using ACL and packets can be intercepted to permit host to continue in sleep mode. The methods are applicable to virtual environments.