Multiplex communications – Wide area network – Packet switching
Patent
1994-04-15
1995-10-17
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 54, H04J 314
Patent
active
054597161
ABSTRACT:
A method for rapidly restoring disrupted communications services between nodes of a network following a loss of service due to a circuit outage such as may occur, for example, as a result of an optical fiber cable break. The method is operable, however, irrespective of the transmission technology. Treating the telecommunications traffic as a commodity, a multicommodity model is developed using a measure of the commodities desired to be restored between network nodes and the capacity available for restoral in spare and impacted edges of the network. Action variables are established by use of representational "dummy nodes pairs" interconnected by "action edges." A multicommodity algorithm is applied to the model and to the decision variables to determine reroutes and actions to be taken within nodes of the network to effect the restoral reroutes. Preferably, the process is carried out in real time or near real time by computing apparatus and such that the outage is located via a control network and whereby the instructions for restoral actions are returned to the network nodes. Operation also preferably takes into consideration the priority of the telecommunications commodity to be restored and the relative costs of restoral so that higher priority commodities are restored first at lowest cost.
REFERENCES:
patent: 4999829 (1991-03-01), Fite, Jr. et al.
patent: 5058105 (1991-10-01), Mansour et al.
patent: 5146452 (1992-09-01), Pekarske
patent: 5179329 (1993-01-01), Nishikawa et al.
patent: 5182744 (1993-01-01), Askew et al.
patent: 5218601 (1993-06-01), Chujo et al.
patent: 5233600 (1993-08-01), Pekarske
patent: 5263080 (1993-11-01), Jones et al.
patent: 5289536 (1994-02-01), Hokari
patent: 5311502 (1994-05-01), Mueller et al.
Chiu Hsueh-Mei
deLaski Maude A.
Fahim Furrukh
Piatt Darrell B.
Hom Shick
MCI Communications Corporation
Olms Douglas W.
LandOfFree
Facility restoration for telecommunications networks does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Facility restoration for telecommunications networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Facility restoration for telecommunications networks will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-603383