Multiplex communications – Fault recovery – Bypass an inoperative station
Reexamination Certificate
2006-10-31
2010-02-09
Pham, Chi H (Department: 2416)
Multiplex communications
Fault recovery
Bypass an inoperative station
C370S218000, C370S907000
Reexamination Certificate
active
07660238
ABSTRACT:
A method for a communications network with a protect channel transmitting protect channel data and working channel transmitting working channel data includes transmitting the working channel data via the protect channel upon a disruption in the working channel, and restoring the transmitting of protect channel data, wherein the restoring includes applying a mesh restoration protocol to the communications network to restore the transmittal of the protect channel data. The restoring includes finding one or more alternate channels to transmit the protect channel data, the one or more alternate channels including connected working and protect channels. An apparatus disposed in a communication network having a protect channel and a working channel includes a node controller, a route processor coupled to the node controller, the route processor implementing a mesh restoration protocol, and a circuit coupled to the node controller and the route processor, the circuit including a logic gate for receiving signals identifying disruptions in transmissions in the protect channel and the working channel and a switch responsive to the signals identifying disruptions in transmissions in the protect channel and the working channel, the switch communicating with the route processor to implement mesh restoration of protect channel data. In one embodiment, the circuit is coupled to at least one line card, the line card transmitting the signals identifying disruptions in transmissions in the protect channel and the working channel. The circuit further includes an input/output circuit for receiving instructions identifying criteria for applying mesh restoration to protect channel data.
REFERENCES:
patent: 4956835 (1990-09-01), Grover
patent: 5412652 (1995-05-01), Lu
patent: 5506833 (1996-04-01), Nemoto
patent: 5537393 (1996-07-01), Shioda et al.
patent: 5550805 (1996-08-01), Takatori et al.
patent: 5646936 (1997-07-01), Shah et al.
patent: 5815490 (1998-09-01), Lu
patent: 5933258 (1999-08-01), Flanagan et al.
patent: 6215763 (2001-04-01), Doshi et al.
patent: 6324162 (2001-11-01), Chaudhuri
patent: 6331906 (2001-12-01), Sharma et al.
patent: 6370110 (2002-04-01), Eslambolchi
patent: 6473397 (2002-10-01), Au
patent: 6512740 (2003-01-01), Baniewicz et al.
patent: 6532088 (2003-03-01), Dantu et al.
patent: 6587235 (2003-07-01), Chaudhuri et al.
patent: 6643464 (2003-11-01), Roorda et al.
patent: 6728205 (2004-04-01), Finn et al.
patent: 6735392 (2004-05-01), Elahmadi et al.
patent: 6763190 (2004-07-01), Agrawal et al.
patent: 6775477 (2004-08-01), Badr
patent: 6795394 (2004-09-01), Swinkels et al.
patent: 6813241 (2004-11-01), Wang et al.
patent: 6848006 (2005-01-01), Hermann
patent: 6870813 (2005-03-01), Raza et al.
patent: 6934248 (2005-08-01), DeBoer et al.
patent: 6992978 (2006-01-01), Humblet et al.
patent: 7167444 (2007-01-01), Afferton
patent: 7315510 (2008-01-01), Owens et al.
patent: 2001/0038471 (2001-11-01), Agrawal et al.
Doverspike et al, Future Transport Network Architectures, IEEEE Aug. 1999, pp. 96-101.
Campbell Stephenson LLP
Cisco Technology Inc.
Elallam Ahmed
Pham Chi H
LandOfFree
Mesh with protection channel access (MPCA) does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mesh with protection channel access (MPCA), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mesh with protection channel access (MPCA) will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4204634