Electrical computers and digital processing systems: multicomput – Computer network managing – Network resource allocating
Reexamination Certificate
2005-03-08
2008-11-25
Abdullahi, Salad (Department: 2157)
Electrical computers and digital processing systems: multicomput
Computer network managing
Network resource allocating
C709S224000
Reexamination Certificate
active
07457877
ABSTRACT:
An embodiment of the present invention is a system and method for measuring round trip times in a network, such as the Internet, by utilizing a packet, such as a transmission control protocol (TCP) packet. The TCP packet may be a packet which is typically utilized during establishment of a reliable connection, such as a SYN or a SYN ACK. According to an embodiment of the present invention, a mirrored service is selected for a client by sending the TCP packet from an approximate location of each of the mirrored service to an approximate location of the client. A response is then received by each mirrored service from the approximate location of the client, and a round trip time for each mirrored service is measured from the time the TCP packet was sent to the time the response was received. The various round trip times of each mirrored service are compared with each other and a best round trip time, such as the shortest time, is selected. A mirrored service associated with the best round trip time is selected for use with the client.
REFERENCES:
patent: 5341477 (1994-08-01), Pitkin et al.
patent: 5430727 (1995-07-01), Callon
patent: 5450394 (1995-09-01), Gruber
patent: 5459837 (1995-10-01), Caccavale
patent: 5477531 (1995-12-01), McKee et al.
patent: 5509123 (1996-04-01), Dobbins et al.
patent: 5521907 (1996-05-01), Ennis et al.
patent: 5812528 (1998-09-01), VanDervort
patent: 5819089 (1998-10-01), White
patent: 5870557 (1999-02-01), Bellovin et al.
patent: 5894556 (1999-04-01), Grimm et al.
patent: 5905871 (1999-05-01), Buskens et al.
patent: 5917820 (1999-06-01), Rekhter
patent: 5918017 (1999-06-01), Attanasio et al.
patent: 5983265 (1999-11-01), Martino, II
patent: 5991809 (1999-11-01), Kriegsman
patent: 6003079 (1999-12-01), Friedrich et al.
patent: 6006264 (1999-12-01), Colby et al.
patent: 6009081 (1999-12-01), Wheeler et al.
patent: 6018516 (2000-01-01), Packer
patent: 6023733 (2000-02-01), Periasamy et al.
patent: 6031846 (2000-02-01), Gurusami et al.
patent: 6041352 (2000-03-01), Burdick et al.
patent: 6070190 (2000-05-01), Reps et al.
patent: 6078590 (2000-06-01), Farinacci et al.
patent: 6078956 (2000-06-01), Bryant et al.
patent: 6088717 (2000-07-01), Reed et al.
patent: 6101180 (2000-08-01), Donahue et al.
patent: 6115752 (2000-09-01), Chauhan
patent: 6118765 (2000-09-01), Phillips
patent: 6286045 (2001-09-01), Griffiths et al.
patent: 6317775 (2001-11-01), Coile et al.
patent: 6446121 (2002-09-01), Shah et al.
patent: 6578066 (2003-06-01), Logan et al.
“Cisco Distributed Director”, 1996, Cisco Systems, Inc.
Chapter 2.2 PING ofTCP RCF 1739-www.ietf.org, 1739 text, Dec. 1994.
Bolosky, William 1. et al, “Distributed Schedule Management in the Tiger Video Fileserver”, p. 213-223, ACM Symposium on Operating Systems Principles, Oct. 1997, Saint Malo, France.
Dillon, Kevin, “PNNI: Effortless Expansion for ATM Networks”, Dialog (r) File 647, ATM Forum Bay Networks, Nov. 7, 1998.
Gobrial, Margaret N., “Evaluation of Border Gateway Protocol (BGP) Version 4 (V4) In the Tactical Environment”, Oct. 21-24, 1996 Military Communications Conference, 1996.
Halabi, Bassam, Internet Routing Architectures (CISCO) Macmillan Technical Publishing, Apr. 23, 1997.
IBM Redbooks, “Setting Up and Implementing ADST AR Distributed Storage Manager/400”, Apr. 3, 1995.
Kosiur, IP Multicasting: The Complete Guide to Interactive Corporate Networks. Wiley Computer Publishing, Apr. 1, 1998.
Liu, Zhao, et al, “A Scalable Wireless Virtual LAN”, International Conf. On Mobile Computing and Networking, Nov. 11-12, 1996 White Plains, NY.
Morrissey, Peter, “Multihoming with BGP4”, Network Computing, 1999, No. 1025, p. 117.
Shiner, Mitchell, Scott Meuller Library-Computer Dictionary, Que, Macmillan Computer Publishing , May 20, 1998.
Smith, Bradley R., et al, “Securing the Border Gateway Routing Protocol”, Global Telecommunications Conference, 1996, Nov. 18-22, 1996.
Tsuchiya, Paul F., “Internet Routing over Large Public Data Networks using Shortcuts”, Bellcore, tsuchiya@thumper.bellcore.com, 1992.
Inan, Kemal, “Supervisory Control and the Gateway Problem”, Jun. 4, 1993, IEEE Colloquium on Discrete Event Systems.
Bosteder Dalen D.
Honnur Virupaksh
Shah Dhaval N.
Abdullahi Salad
Baker & Botts L.L.P.
Cisco Technology Inc.
LandOfFree
System and method for measuring round trip times in a... 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 measuring round trip times in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for measuring round trip times in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029126