Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing
Reexamination Certificate
2005-02-25
2009-12-08
Tran, Philip B (Department: 2455)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
C709S224000, C709S227000, C718S105000
Reexamination Certificate
active
07631093
ABSTRACT:
A scalable, reliable session initiation protocol (SIP) signaling router includes cluster nodes for performing SIP services. A location server replicates its database of SIP location information to each of the cluster nodes. Because each cluster node maintains its own local copy of the SIP location database, the time for routing SIP signaling messages is decreased. Load sharing is also performed among the cluster nodes by Ethernet switches that connect the cluster nodes to external networks. One Ethernet switch periodically sends messages to each of the cluster nodes to monitor the operational status of the cluster nodes. The Ethernet switch also maintains a connection tuple table containing information regarding active connections to each of the cluster nodes. Load sharing is performed based on the operational status and the connection tuple table.
REFERENCES:
patent: 5371852 (1994-12-01), Attanasio et al.
patent: 5710885 (1998-01-01), Bondi
patent: 5719861 (1998-02-01), Okanoue
patent: 5870455 (1999-02-01), Campbell et al.
patent: 5937343 (1999-08-01), Leung
patent: 6058116 (2000-05-01), Hiscock et al.
patent: 6088721 (2000-07-01), Lin et al.
patent: 6105034 (2000-08-01), Buckler
patent: 6331983 (2001-12-01), Haggerty et al.
patent: 6366577 (2002-04-01), Donovan
patent: 6385198 (2002-05-01), Ofek et al.
patent: 6404746 (2002-06-01), Cave et al.
patent: 6421674 (2002-07-01), Yoakum et al.
patent: 6434143 (2002-08-01), Donovan
patent: 6446127 (2002-09-01), Schuster et al.
patent: 6564261 (2003-05-01), Gudjonsson et al.
patent: 6601099 (2003-07-01), Corneliussen
patent: 6615236 (2003-09-01), Donovan et al.
patent: 6625141 (2003-09-01), Glitho et al.
patent: 6636596 (2003-10-01), Gallant et al.
patent: 6650901 (2003-11-01), Schuster et al.
patent: 6665702 (2003-12-01), Zisapel et al.
patent: 6728748 (2004-04-01), Mangipudi et al.
patent: 6735291 (2004-05-01), Schmid et al.
patent: 6738390 (2004-05-01), Xu et al.
patent: 6757732 (2004-06-01), Sollee et al.
patent: 6779039 (2004-08-01), Bommareddy et al.
patent: 6839752 (2005-01-01), Miller et al.
patent: 6857021 (2005-02-01), Schuster et al.
patent: 6914900 (2005-07-01), Komatsu et al.
patent: 6937563 (2005-08-01), Preston et al.
patent: 6992994 (2006-01-01), Das et al.
patent: 7020707 (2006-03-01), Sternagle
patent: 7028092 (2006-04-01), MeLampy et al.
patent: 7054272 (2006-05-01), Noel et al.
patent: 7134011 (2006-11-01), Fung
patent: 7286521 (2007-10-01), Jackson et al.
patent: 7308499 (2007-12-01), Chavez
patent: 2001/0021173 (2001-09-01), Oohashi et al.
patent: 2001/0039585 (2001-11-01), Primak et al.
patent: 2002/0075844 (2002-06-01), Hagen
patent: 2002/0075880 (2002-06-01), Dolinar et al.
patent: 2002/0080807 (2002-06-01), Lind
patent: 2002/0110113 (2002-08-01), Wengrovitz
patent: 2002/0145975 (2002-10-01), MeLampy et al.
patent: 2002/0176404 (2002-11-01), Girard
patent: 2004/0088424 (2004-05-01), Park et al.
patent: 2004/0158606 (2004-08-01), Tsai
patent: 2004/0205190 (2004-10-01), Chong et al.
patent: 2004/0221061 (2004-11-01), Chavez
patent: 2005/0147087 (2005-07-01), Sternagle
patent: 2005/0207402 (2005-09-01), Kobayashi et al.
patent: 2006/0069776 (2006-03-01), Shim et al.
patent: 2006/0101143 (2006-05-01), Garcia et al.
patent: 2007/0191004 (2007-08-01), Yamakawa et al.
patent: 2008/0056234 (2008-03-01), Sprague
patent: 2008/0280623 (2008-11-01), Danne et al.
patent: 2009/0040923 (2009-02-01), Bantukul et al.
patent: 2006-279805 (2006-10-01), None
patent: 10-2004-0057858 (2004-07-01), None
patent: 10-2005-0002335 (2005-01-01), None
patent: 10-2006-0025869 (2006-03-01), None
patent: WO 00/69140 (2000-11-01), None
patent: WO 01/13228 (2001-02-01), None
patent: WO 02/97653 (2002-02-01), None
patent: WO 2008/019056 (2008-02-01), None
patent: WO 2009/018418 (2009-02-01), None
Handley et al., “SIP: Session Initiation Protocol,”IETF RFC 2543, pp. 1-153 (Mar. 1999).
Handley et al., “SDP: Session Description Protocol,”IETF RFC 2327, pp. 1-42 (Apr. 1998).
S. Paul et al., “Reliable Multicast Transport Protocol (RMTP),”IEEE Journal on Selected Areas in Communications, vol. 15, No. 3, pp. 407-421 (Apr. 1997).
Lin et al., “A Reliable Multicast Transport Protocol,”IEEE INFOCOM, pp. 1414-1424 (1996).
Supplementary European Search Report for European Application No. 02734585.9-2413 (Jun. 11, 2007).
Rosenberg, “SIP Proxies,” www.dynamicsoft.com, pp. 1-30 (Jul. 2000).
Wiesmann et al., “Understanding Replication in Databases and Distributed Systems,” IEEE, pp. 464-474 (Apr. 10, 2000).
Wang et al., “A Signaling System Using Lightweight Call Sessions,” IEEE, pp. 697-706 (Mar. 26, 2000).
Gribble et al., “The MultiSpace: an Evolutionary Platform for Infrastructural Services,” The University of California at Berkeley, pp. 157-170 (Jun. 6, 1999).
Office Action for European Application No. 02 734 585.9-2413 (Aug. 29, 2007).
Amendment A as filed in U.S. Appl. No. 11/065,900 (Mar. 31, 2008).
Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration for International Application No. PCT/US07/17329 (Feb. 15, 2008).
Office Action for U.S. Appl. No. 11/065,900 (Oct. 31, 2007).
Office Action for U.S. Appl. No. 11/065,900 (Aug. 5, 2008).
Commonly-assigned, co-pending U.S. Appl. No. 12/183,406 for “Systems, Methods, and Computer Program Products for Distributing Application or Higher Layer Communications Network Signaling Entity Operational Status Information Among Session Initiated Protocol (SIP) Entities,” (Unpublished, filed Jul. 31, 2008).
Interview Summary for U.S. Appl. No. 11/065,900 (Apr. 1, 2008).
Notice of Allowance and Fee(s) Due for U.S. Appl. No. 09/867,879 (Jan. 3, 2006).
Official Action for U.S. Appl. No. 09/867,879 (Jun. 17, 2005).
Restriction and/or Election Requirement for U.S. Appl. No. 09/867,879 (Dec. 15, 2004).
A. B. Roach, “Session Initiation Protocol (SIP)-Specific Event Notification,” dynamicsoft, Network Working Group, pp. 1-38 (Jun. 2002).
Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration for International Application No. PCT/US2008/071718 (Jan. 28, 2009).
Office Action for U.S. Appl. No. 11/510,284 (Dec. 24, 2008).
Final Official Action for U.S. Appl. No. 11/510,284 (Jul. 9, 2009).
Final Official Action for U.S. Appl. No. 11/065,900 (Apr. 20, 2009).
Jenkins Wilson Taylor & Hunt, P.A.
Tekelec
Tran Philip B
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