Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2006-02-07
2006-02-07
Rao, Seema S. (Department: 2666)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S252000
Reexamination Certificate
active
06996065
ABSTRACT:
A packet network of interconnected nodes employing dynamic backup routing of a Network Tunnel Path (NTP) allocates an active and backup path to the NTP based upon detection of a network failure. Dynamic backup routing employs local restoration to determine the allocation of, and, in operation, to switch between, a primary/active path and a secondary/backup path. Switching from the active path is based on a backup path determined with iterative shortest-path computations with link weights assigned based on the cost of using a link to backup a given link. Costs may be assigned based on single-link failure or single element (node or link) failure. Link weights are derived by assigning usage costs to links for inclusion in a backup path, and minimizing the costs with respect to a predefined criterion.
REFERENCES:
patent: 5317566 (1994-05-01), Joshi
patent: 5590119 (1996-12-01), Moran et al.
patent: 5999286 (1999-12-01), Venkatesan
patent: 6026077 (2000-02-01), Iwata
patent: 6215765 (2001-04-01), McAllister et al.
patent: 6363319 (2002-03-01), Hsu
patent: 6507561 (2003-01-01), Baniewicz et al.
patent: 6512740 (2003-01-01), Baniewicz et al.
patent: 6584071 (2003-06-01), Kodialam et al.
patent: 6628649 (2003-09-01), Raj et al.
patent: 6721269 (2004-04-01), Cao et al.
Weil et al. “Failure Protection in a Communication Network” Jul. 5, 2001.
Murali Kodialam and T.V. Lakshman, Dynamic Routing of Locally Restorable Bandwidth Granteed Tunnels Using Aggregated Link Usage Information, IEEE INFOCOM 2001, pp. 376-385.
Murali Kodialam and T.V. Lakshman, Dynamic Routing of Locally Restorable Bandwidth Granteed Tunnels with Restoration,Proceesings of Infocom 2000, Mar. 2000.
Kodialam Muralidharan S.
Lakshman Tirunell V.
Bhandari Puneet
Rao Seema S.
LandOfFree
Dynamic backup routing of network tunnel paths for local... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dynamic backup routing of network tunnel paths for local..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic backup routing of network tunnel paths for local... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3686110