Method and system for path change root-cause identification...

Details Method and system for path change root-cause identification... Method and system for path change root-cause identification...

2004-03-15

2008-11-11

Ngo, Ricky (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S238000, C709S241000

Reexamination Certificate

active

07450495

ABSTRACT:
A method and system for identifying the root-cause event that affected a path change in a multi-area Internet protocol (IP) autonomous system (AS) operated according to a link state routing protocol such as the Open Shortest Path First (OSPF) protocol is disclosed. The method and system may enable a user, such as a network administrator, to explicitly identify which routing protocol events are responsible for changes to paths that are being monitored.

REFERENCES:
patent: 4939726 (1990-07-01), Flammer
patent: 5115433 (1992-05-01), Baran
patent: 5309433 (1994-05-01), Cidon
patent: 5491690 (1996-02-01), Alfonsi et al.
patent: 5687168 (1997-11-01), Iwata
patent: 5754790 (1998-05-01), France
patent: 5930259 (1999-07-01), Katsube
patent: 6078590 (2000-06-01), Farinacci
patent: 6097718 (2000-08-01), Bion
patent: 6108710 (2000-08-01), Brabson
patent: 6119170 (2000-09-01), Schoffelman
patent: 6222839 (2001-04-01), Nakazaki
patent: 6347078 (2002-02-01), Narvaez-Guarnieri et al.
patent: 6498778 (2002-12-01), Cwilich et al.
patent: 6639897 (2003-10-01), Shiomoto et al.
patent: 6678611 (2004-01-01), Khavakh et al.
patent: 7130262 (2006-10-01), Cortez et al.
patent: 7155120 (2006-12-01), Ofek et al.
patent: 2001/0017845 (2001-08-01), Bauer
patent: 2002/0131362 (2002-09-01), Callon
patent: 2003/0063613 (2003-04-01), Carpini et al.
U.S. Appl. No. 09/997,420, filed Sep. 15, 2005, Guerin.
U.S. Appl. No. 10/077,245, filed Apr. 17, 2003, Guerin.
U.S. Appl. No. 10/077,251, filed Apr. 17, 2003, Guerin.
U.S. Appl. No. 10/126,310, filed Aug. 14, 2007, Guerin.
J.D. Case et al., “Simple Network Management Protocol”, Internet Engineering Task Force, Request for Comments No. 1157, http://www.ietf.org/rfc/rfc1157.txt, May 1990.
Cisco Systems, “NetFlow FlowCollector 3.0 Documentation”, http://www.cisco.com/warp/public/732/Tech
etflow/, Jan. 1996.
J. Moy, “OSPF Version 2”, Internet Engineering Task Force, Request for Comments No. 2328, http://www.ietf.org/rfc/rfc2328.txt, Apr. 1998.
D. Oran, “OSI IS-IS Intra-Domain Routing Protocol”, Internet Engineering Task Force, Request for Information No. 1142, http://www.ietf.org/rfc/rfc1142.txt, Feb. 1990.

Affiliated with

Also associated with

Rating

Method and system for path change root-cause identification... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for path change root-cause identification..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for path change root-cause identification... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4024925