METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR MAINTAINING FLOW AFFINITY TO INTERNET PROTOCOL SECURITY (IPSEC) SESSIONS IN A LOAD-SHARING SECURITY GATEWAY

WIPO Patent Application WO/2010/124014

A3

Methods, systems, and computer readable media for maintaining flow affinity to IPSec sessions in a load-sharing security gateway are disclosed. According to one embodiment, the method includes receiving packets at a security gateway that provides communications of packet flows between source and destination entities using IPSec sessions. For each packet, it is determined whether the packet is assigned to an existing packet flow between a source and a destination entity that is being processed by the SG. In response to determining that the packet belongs to an existing flow, the packet is forwarded to a processing element associated with that flow and IPSec processing is performed at the processing element. In response to determining that the packet does not belong to an existing flow, a new flow is defined and assigned to a next available processing element. IPSec processing is performed for the flow at the next available processing element.

JPH09233128	INTER-NETWORK REPEATER
JP2003283534	KEY TELEPHONE EQUIPMENT AND PROGRAM
JPH0310543	SUBSCRIBER SYSTEM CONSTITUTION SYSTEM FOR BROAD BAND ISDN

RODGERS RICHARD (US)
CERVANTES JAMES H (US)

PCT/US2010/031929

March 31, 2011

April 21, 2010

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GENBAND INC (US)
RODGERS RICHARD (US)
CERVANTES JAMES H (US)

H04L12/66; H04L12/22; H04L29/06

US20080137671A1	2008-06-12
US20070268888A1	2007-11-22
US20040205331A1	2004-10-14
JP2004228820A	2004-08-12

HUNT, Gregory, A. (Wilson Taylor & Hunt, P.A.,Suite 1200, University Tower,3100 Tower Boulevar, Durham NC, US)

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