Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2008-05-13
2008-05-13
Patel, Jay K. (Department: 2619)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S216000
Reexamination Certificate
active
07372803
ABSTRACT:
A node within a mesh network includes an Optical Connection Controller (OCC) and a network element. When a connection path within the mesh network is required, an OCC determines if a particular connection path requires a network element to operate as a virtual gateway to separate the mesh network into separate protection domains for that particular connection path. A connection path might require separate protection domains in cases in which the number of network elements and/or repeater/amplifier components for a particular connection path is greater than a threshold, the total length of links for the connection path is above a threshold and/or another factor that could cause the recovery time for the connection path to increase beyond an acceptable threshold level. If the OCC determines that one or more virtual gateways are required for a particular connection path, the OCC selects an appropriate network element within the network to operate as a virtual gateway for that particular connection path. Finally, the OCC assigns network elements and links to establish working and protection paths between the source network element and the virtual gateway and between the virtual gateway and the destination network element. This set-up can ensure that each connection path will have a recovery time after a failure within an acceptable range.
REFERENCES:
patent: 5870212 (1999-02-01), Nathan et al.
patent: 5933258 (1999-08-01), Flanagan et al.
patent: 6073248 (2000-06-01), Doshi et al.
patent: 6304346 (2001-10-01), Sawada et al.
patent: 6324162 (2001-11-01), Chaudhuri
patent: 6721269 (2004-04-01), Cao et al.
patent: 6721899 (2004-04-01), Narvaez-Guarnieri et al.
patent: 6848062 (2005-01-01), Desai et al.
patent: 6950391 (2005-09-01), Zadikian et al.
patent: 6970417 (2005-11-01), Doverspike et al.
patent: 6982951 (2006-01-01), Doverspike et al.
patent: 6990064 (2006-01-01), Son et al.
patent: 7155120 (2006-12-01), Ofek et al.
Betts Malcolm
de Boer Evert
Shields James A.
Trudel Richard
Mais Mark A.
Nortel Networks Limited
Patel Jay K.
LandOfFree
Apparatus and method for establishment and protection of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for establishment and protection of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for establishment and protection of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2759160