Aayush Saxena

US Patent:

20210258397, Aug 19, 2021

Filed:

May 5, 2021

Appl. No.:

17/308922

Inventors:

- Palo Alto CA, US
Alexander Yip - Menlo Park CA, US
Pankaj Thakkar - Cupertino CA, US
Teemu Koponen - San Francisco CA, US
Aayush Saxena - Santa Clara CA, US

International Classification:

H04L 29/08
H04L 12/24
H04L 12/26

Abstract:

Some embodiments provide a method for a network controller that manages multiple managed forwarding elements (MFEs) that implement multiple logical networks. The method stores (i) a first data structure including an entry for each logical entity in a desired state of the multiple logical networks and (ii) a second data structure including an entry for each logical entity referred to by an update for at least one MFE. Upon receiving updates specifying modifications to the logical entities, the method adds separate updates to separate queues for the MFEs that require the update. The separate updates reference the logical entity entries in the second data structure. When the second data structure reaches a threshold size in comparison to the first data structure, the method compacts the updates in at least one of the queues so that each queue has no more than one update referencing a particular logical entity entry.

US Patent:

20200272504, Aug 27, 2020

Filed:

May 11, 2020

Appl. No.:

16/871737

Inventors:

- Palo Alto CA, US
Amit CHOPRA - Sunnyvale CA, US
Dexiang WANG - Sunnyvale CA, US
Chen LI - Sunnyvale CA, US
Feng PAN - Beijing, CN
Jianjun SHEN - Palo Alto CA, US
Aayush SAXENA - San Jose CA, US
Yang PING - San Jose CA, US

International Classification:

G06F 9/455
H04L 29/06

Abstract:

Certain embodiments described herein are generally directed to handling a hypervisor restart event in a distributed network system. Embodiments include receiving, by a central controller, a session identifier from a first hypervisor. Embodiments further include comparing, by the central controller, the session identifier to a stored session identifier associated with the first hypervisor. Embodiments further include determining, by the central controller based on the session identifier not matching the stored session identifier associated with the first hypervisor, that the first hypervisor has restarted. Embodiments further include updating, by the central controller, the stored session identifier associated with the first hypervisor to match the session identifier. Embodiments further include identifying, by the central controller, a second hypervisor that is associated with the first hypervisor. Embodiments further include sending, by the central controller, a notification to the second hypervisor that the first hypervisor has restarted.

US Patent:

20190303186, Oct 3, 2019

Filed:

Mar 28, 2018

Appl. No.:

15/938763

Inventors:

- Palo Alto CA, US
Amit CHOPRA - Sunnyvale CA, US
Dexiang WANG - Sunnyvale CA, US
Chen LI - Sunnyvale CA, US
Feng PAN - Beijing, CN
Jianjun SHEN - Palo Alto CA, US
Aayush SAXENA - San Jose CA, US
Yang PING - San Jose CA, US

International Classification:

G06F 9/455
H04L 29/06

Abstract:

Certain embodiments described herein are generally directed to handling a hypervisor restart event in a distributed network system. Embodiments include receiving, by a central controller, a session identifier from a first hypervisor. Embodiments further include comparing, by the central controller, the session identifier to a stored session identifier associated with the first hypervisor. Embodiments further include determining, by the central controller based on the session identifier not matching the stored session identifier associated with the first hypervisor, that the first hypervisor has restarted. Embodiments further include updating, by the central controller, the stored session identifier associated with the first hypervisor to match the session identifier. Embodiments further include identifying, by the central controller, a second hypervisor that is associated with the first hypervisor. Embodiments further include sending, by the central controller, a notification to the second hypervisor that the first hypervisor has restarted.

US Patent:

20170318113, Nov 2, 2017

Filed:

Apr 29, 2016

Appl. No.:

15/143462

Inventors:

- Palo Alto CA, US
Alexander Yip - Menlo Park CA, US
Pankaj Thakkar - Cupertino CA, US
Teemu Koponen - San Francisco CA, US
Aayush Saxena - Santa Clara CA, US

International Classification:

H04L 29/08
H04L 12/26

Abstract:

Some embodiments provide a method for a network controller that manages multiple managed forwarding elements (MFEs) that implement multiple logical networks. The method stores (i) a first data structure including an entry for each logical entity in a desired state of the multiple logical networks and (ii) a second data structure including an entry for each logical entity referred to by an update for at least one MFE. Upon receiving updates specifying modifications to the logical entities, the method adds separate updates to separate queues for the MFEs that require the update. The separate updates reference the logical entity entries in the second data structure. When the second data structure reaches a threshold size in comparison to the first data structure, the method compacts the updates in at least one of the queues so that each queue has no more than one update referencing a particular logical entity entry.