Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-07-24
2007-07-24
Nguyen, Chau (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000, C709S230000
Reexamination Certificate
active
10271275
ABSTRACT:
A method and apparatus resynchronizes a link state database (LSDB) of router with the LSDB of a neighboring router (“neighbor”) while maintaining an existing adjacency with the neighbor in a computer network. An out-of-band resynchronization process executes on the routers to essentially maintain the existing adjacency between the router and neighbor, rather than resetting that adjacency as defined by a conventional resynchronization approach. By keeping the adjacency “up” from the perspective of a routing protocol, such as the Open Shortest Path First routing protocol, the adjacency can be used for continued data traffic to and from the router.
REFERENCES:
patent: 5519704 (1996-05-01), Farinacci et al.
patent: 5964841 (1999-10-01), Rekhter
patent: 6195705 (2001-02-01), Leung
patent: 6950427 (2005-09-01), Zinin
U.S. Pending Patent Application for Technique for Pesynchronizing LSDB in OSPF After a Software Reload in a Non-Stop Forwarding Intermediate Node of a Computer Network, by Alexey Dimitrievich Zinin, U.S. Appl. No. 09/925,800, filed Aug. 9, 2001.
U.S. Pending Patent Application for Technique for Restoring Adjacencies in OSPF in a Non-Stop Forwarding Intermediate Node of a Computer Network by Alexey Dimitrievich Zinin, U.S. Appl. No. 09/925,827, filed Aug. 9, 2001.
Moy, J., OSPF Version 2, Request for Comments 2328, Network Working Group, Internet Engineering Tast Force, 1998, pp. 1-244.
Perlman, R., INTERCONNECTIONS, Bridges and Routes, Second Edition, 1992, pp. 289-306.
Cesari and McKenna LLP
Cisco Technology Inc.
Nguyen Chau
Wang U-Lun
LandOfFree
System and method for providing a link state database (LSDB)... 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 providing a link state database (LSDB)..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for providing a link state database (LSDB)... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3743534