Cheng Jen Liu

US Patent:

8457130, Jun 4, 2013

Filed:

May 2, 2011

Appl. No.:

13/098575

Inventors:

Prashant Kumar - Andover MA, US
Jitender Arora - Nashua NH, US
Cheng Liu - Acton MA, US

Assignee:

Acme Packet, Inc. - Beford MA

International Classification:

H04L 12/28

US Classification:

370394, 370219, 370243, 370244, 370401

Abstract:

Systems and methods are disclosed for synchronizing sequence numbers in a packet flow. One such method includes receiving a sequence number synchronization request from a redundancy peer. The sequence number synchronization request is associated with a packet flow. The method also includes incrementing by a fixed amount a packet sequence number for the packet flow, after the sequence number synchronization request. The method also includes transmitting a next packet including the incremented packet sequence number to the communication peer.

US Patent:

20200274902, Aug 27, 2020

Filed:

Feb 26, 2019

Appl. No.:

16/286508

Inventors:

- Redwood Shores CA, US
Cheng Liu - Acton MA, US

International Classification:

H04L 29/06

Abstract:

A method for dynamically remediating a security system entity includes establishing a security score for a security system entity (SSE) supporting a trusted network based on a security policy configuration of the SSE. The method further includes receiving, by the SSE, ingress network traffic flows directed to the trusted network and determining an updated security score for the SSE based on the security policy configuration of the SSE and the ingress network traffic flows that are permitted into the trusted network via the SSE. The method also includes remedying the security policy configuration of the SSE if the updated security score differs from the baseline security score by a predefined amount.

US Patent:

20150358889, Dec 10, 2015

Filed:

Jun 6, 2014

Appl. No.:

14/298405

Inventors:

- Redwood Shores CA, US
Cheng LIU - Acton MA, US
Nan LUO - Shrewsbury MA, US

International Classification:

H04W 40/04
H04W 76/02
H04W 4/18

Abstract:

A system/router that flexibly routes Wi-Fi offloaded data receives a data packet from a user equipment via an access point of a Wi-Fi network. The data packet includes an access point name (“APN”) and an Internet Protocol (“IP”) address. The system defines two or more routing policies, each routing policy including a routing criteria and a priority. The system evaluates the data packet based on the routing policies, and routes the data packet to one of at least two possible destinations based at least on the routing policies, including the priorities.

US Patent:

20150319091, Nov 5, 2015

Filed:

May 1, 2014

Appl. No.:

14/267285

Inventors:

- Redwood Shores CA, US
Cheng LIU - Acton MA, US
Balaji Thoguluva BAPULAL - North Chelmsford MA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

H04L 12/801
H04L 12/911

Abstract:

A security gateway system offloads cellular data from user equipment (“UE”). The system receives a dynamic host configuration protocol (“DHCP”) message from a Wi-Fi access point (“AP”) in communication with the UE. The system converts the DHCP message into an authentication, authorization and accounting (“AAA”) access request and sends the AAA access request to an AAA server. The system receives an AAA access accept from the AAA server and initiates a gateway general packet radio service tunneling protocol tunnel setup with a setup node.