Chao Wei H Feng

US Patent:

20130121137, May 16, 2013

Filed:

Nov 16, 2011

Appl. No.:

13/297568

Inventors:

Chao Feng - San Jose CA, US
Samar Sharma - San Jose CA, US
Sriram Chidambaram - Sunnyvale CA, US
Raghavendra J. Rao - Bangalore, IN
Sanjay Hemant Sane - Fremont CA, US
Murali Basavaiah - Sunnyvale CA, US

Assignee:

CISCO TECHNOLOGY, INC. - San Jose CA

International Classification:

H04L 12/26
H04L 12/28

US Classification:

370221, 370392, 370254

Abstract:

Systems and methods for providing service virtualization endpoint (SVE) redundancy in a two-node, active-standby form. An active-standby pair of SVEs register with a cloud-centric-network control point (CCN-CP) as a single service node (SN) using a virtual IP address for both a control-plane and a data-plane. At any given time, only the active SVE is a host for the control-plane and the data-plane. When a failover happens, the hosting operation is taken over by the standby SVE, therefore the failover will be transparent to CCN-CP and the SN.

US Patent:

20130155902, Jun 20, 2013

Filed:

Dec 16, 2011

Appl. No.:

13/329023

Inventors:

Chao Feng - San Jose CA, US
Samar Sharma - San Jose CA, US
Ronak Desai - Fremont CA, US
Diheng Qu - Palo Alto CA, US

International Classification:

H04L 12/28

US Classification:

370255

Abstract:

An example method includes disengaging a target node from a cluster, where the disengaging comprises: selecting an inheritor; migrating flows from the target node to the inheritor; informing a migration manager that the target node is disengaged from the cluster; and broadcasting to peer nodes of the target node that the target node is replaced by the inheritor. In particular implementations of the present disclosure, the cluster can include a first layer of a network topology including a forwarding engine that implements hash-based packet forwarding; a second layer of the network topology comprising the target node and the inheritor, where the target node and the inheritor implement flow-based packet forwarding; and a third layer including service nodes configured for packet processing in a network.

US Patent:

20130250952, Sep 26, 2013

Filed:

Mar 22, 2012

Appl. No.:

13/427274

Inventors:

Chao Feng - San Jose CA, US
Nitesh G. Soni - San Jose CA, US
Pramod Cherukumilli - Belmont CA, US
Diheng Qu - Palo Alto CA, US
Suresh Kumar Nalluru - San Jose CA, US
Samar Sharma - San Jose CA, US

Assignee:

CISCO TECHNOLOGY, INC. - San Jose CA

International Classification:

H04L 12/56
G06F 15/16

US Classification:

370392, 370401, 709203

Abstract:

Methods and apparatus for providing one-arm node clustering using a port channel are provided herein. An example application node may be communicatively connected to at least one application node, and the application node may be connected to a network through a port channel. The application node may include: a link included in the port channel for accommodating the network data being communicated between the remote client and server; and a processor configured to send/receive a cluster control packet to/from the at least one application node through the link included in the port channel.

US Patent:

20140029423, Jan 30, 2014

Filed:

Jul 25, 2012

Appl. No.:

13/557522

Inventors:

Devendra Mohan Badhani - San Jose CA, US
Chao Feng - San Jose CA, US
Samar Sharma - San Jose CA, US
Kalyan Venkataramana - San Ramon CA, US

Assignee:

CISCO TECHNOLOGY, INC. - San Jose CA

International Classification:

H04L 12/56
H04L 12/24

US Classification:

370235, 370389, 370392

Abstract:

Methods and apparatuses for automating return traffic redirection to a service appliance by injecting forwarding policies in a packet-forwarding element are disclosed herein. An example method for automating return traffic redirection can include: establishing a communication channel between a service appliance and a packet-forwarding element; and transmitting an out-of-band message over the communication channel to the packet-forwarding element. The message can include a forwarding policy that requests the packet-forwarding element to forward predetermined packets to the service appliance.

US Patent:

20200334095, Oct 22, 2020

Filed:

Jan 23, 2020

Appl. No.:

16/750863

Inventors:

- Redwood Shores CA, US
Christopher James Ries - Saratoga CA, US
Chao Feng - San Jose CA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

G06F 11/07
G06F 11/32
G06F 40/284
G06F 17/18
G06N 3/02

Abstract:

A method of distinguishing between human and computer actions in a cloud environment includes receiving one or more actions from a monitored cloud environment; identifying a text string associated with the one or more actions; calculating an entropy value for the text string; determining whether the text string is bot-generated based at least in part on the entropy value; and determining whether to generate an alert based at least in part on a result of determining whether the text string is bot-generated.

US Patent:

20200336502, Oct 22, 2020

Filed:

Jan 23, 2020

Appl. No.:

16/750852

Inventors:

- Redwood Shores CA, US
Chao Feng - San Jose CA, US
Ganesh Kirti - San Jose CA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

H04L 29/06
G06F 11/32
G06N 3/02
G06F 17/18

Abstract:

A method of detecting anomalous user behavior in a cloud environment includes calculating a first vector that is representative of actions taken during a plurality of previous time intervals; calculating a similarity between the first vector and a second vector that comprises counts of actions taken by the user during a current time interval; comparing the similarity to a baseline threshold to determine whether one or more anomalous actions have occurred; and generating an alert based at least in part on a determination that the one or more anomalous actions have occurred in the cloud environment.

US Patent:

20200336503, Oct 22, 2020

Filed:

Jan 23, 2020

Appl. No.:

16/750874

Inventors:

- Redwood Shores CA, US
Chao Feng - San Jose CA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

H04L 29/06
G06F 11/32
G06N 3/08
G06F 17/18

Abstract:

A method of detecting anomalous user behavior in a cloud environment includes receiving a vector that comprises counts of actions taken by the user during a current time interval; determining whether an action count in the vector is greater than a global mean; building a scale table by combining new action skills that are above a threshold and original action skills if below the threshold; and identifying outliers when the action count is greater than the global mean multiplied by a corresponding action scale from the scale table.

US Patent:

20190173978, Jun 6, 2019

Filed:

Feb 5, 2019

Appl. No.:

16/268380

Inventors:

- San Jose CA, US
Chao Feng - San Jose CA, US
Ajit Sanzgiri - Saratoga CA, US

International Classification:

H04L 29/08
H04L 12/24
H04L 29/06
H04L 12/861
H04L 12/46
H04L 12/865
H04L 12/863
H04L 12/875

Abstract:

Providing a template for orchestration of a cloud provided service in a datacenter. This template can include virtual processing services, virtual networking services, storage services, and service level requirements that a user or administrator can select for the cloud provided service. Based on the template the cloud provided service can be provisioned according to the requirements of the service level agreement.