Information security – Access control or authentication – Network
Reexamination Certificate
2011-01-11
2011-01-11
Barron, Jr., Gilberto (Department: 2432)
Information security
Access control or authentication
Network
C713S153000
Reexamination Certificate
active
07870602
ABSTRACT:
A system and method of using a controller and firewall devices. Each of the firewall devices operate in an active mode during normal operation. The method may include the steps of determining when a first and/or second redundant data packet is received from a first/second firewall device, respectively, determining a valid sequence number, and transmitting the first/second redundant data packet to a target device when a sequence number of the first/second redundant data packet matches the valid sequence number and a first/second logical condition is satisfied, respectively. The first/second logical condition is at least one of the second/first firewall device is failed, a sequence number of the second/first redundant data packet varies from the valid sequence number, and the first/second firewall device is a primary firewall device.
REFERENCES:
patent: 6006259 (1999-12-01), Adelman et al.
patent: 6078957 (2000-06-01), Adelman et al.
patent: 6327243 (2001-12-01), Gregorat
patent: 6804783 (2004-10-01), Wesinger, Jr. et al.
patent: 6880089 (2005-04-01), Bommareddy et al.
patent: 6901517 (2005-05-01), Redmore
patent: 7152179 (2006-12-01), Critchfield
patent: 7409706 (2008-08-01), O'Rourke et al.
patent: 7609619 (2009-10-01), Naseh et al.
patent: 2002/0107966 (2002-08-01), Baudot et al.
patent: 2003/0041266 (2003-02-01), Ke et al.
patent: 2003/0101275 (2003-05-01), Maciel
patent: 2003/0131262 (2003-07-01), Goddard
patent: 2003/0200326 (2003-10-01), Leighton et al.
patent: 2003/0200463 (2003-10-01), McCabe
patent: 2004/0059942 (2004-03-01), Xie
patent: 2004/0133772 (2004-07-01), Render
patent: 2006/0092950 (2006-05-01), Arregoces et al.
patent: 2006/0195896 (2006-08-01), Fulp et al.
Adams Thomas H.
Raftelis Michael
AT&T Intellectual Property I L.P.
Barron Jr. Gilberto
Brooks & Kushman P.C.
Gregory Shaun
LandOfFree
System and method for reducing data stream interruption... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for reducing data stream interruption..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reducing data stream interruption... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2693679