Multiplex communications – Fault recovery – Bypass an inoperative station
Reexamination Certificate
2006-05-09
2006-05-09
Ton, Dang (Department: 2666)
Multiplex communications
Fault recovery
Bypass an inoperative station
C370S468000
Reexamination Certificate
active
07042835
ABSTRACT:
A method and corresponding network element configuration for delivering communications services between first and second survivable rings, each comprising a respective plurality of network elements, at least two of which are common to both rings. For each particular service, one of the common network elements is designated as a primary gateway node and another as a secondary gateway node. A primary inter-ring connection is established for the particular service by a switch at the primary gateway node, but no inter-ring connection is established at the secondary gateway node. The secondary gateway node comprises a controller for monitoring the status of the primary gateway node and establishing a new inter-ring connection for delivery of the service upon detecting a failure of the primary gateway node. This provides survivable inter-ring traffic which is bandwidth-efficient and with a low switching delay.
REFERENCES:
patent: 5179548 (1993-01-01), Sandesara
patent: 5327427 (1994-07-01), Sandesara
patent: 5623482 (1997-04-01), Okanoue
patent: 5909175 (1999-06-01), Yamasaki et al.
patent: 6295146 (2001-09-01), Nathan et al.
patent: 6658013 (2003-12-01), de Boer et al.
Caporuscio Robert
de Boer Evert
Pare Louis-Rene
Phelps Peter
Steele David
Borden Ladner Gervais LLP
Measures Jeffrey M.
Nortel Networks Limited
Ton Dang
LandOfFree
Method and apparatus for ensuring survivability 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 Method and apparatus for ensuring survivability of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for ensuring survivability of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3624842