Multiplex communications – Diagnostic testing – Path check
Reexamination Certificate
2011-01-04
2011-01-04
Ngo, Ricky (Department: 2464)
Multiplex communications
Diagnostic testing
Path check
C370S222000, C370S228000, C370S258000
Reexamination Certificate
active
07864690
ABSTRACT:
A system and method for rerouting circuits on a SONET, SDH or similar ring without disrupting service. In one embodiment, the system includes: (1) a route design subsystem adapted to identify, for the circuits, alternative routes that are subject to an alignment constraint and increase an objective value associated with the ring and (2) a path migration subsystem, associated with the route design subsystem, adapted to determine a hitless migration sequence that allows the alternative routes to be employed.
REFERENCES:
patent: 5608720 (1997-03-01), Biegel et al.
patent: 5745476 (1998-04-01), Chaudhuri
patent: 5818842 (1998-10-01), Burwell et al.
patent: 6188667 (2001-02-01), Roberts et al.
patent: 6246668 (2001-06-01), Kusyk
patent: 6754175 (2004-06-01), Akinpelu et al.
patent: 7130263 (2006-10-01), Ong et al.
patent: 2002/0071392 (2002-06-01), Grover et al.
patent: 2002/0118636 (2002-08-01), Phelps et al.
patent: 2002/0131368 (2002-09-01), Raftelis et al.
patent: 2003/0048776 (2003-03-01), Loeffler-Lejeune
patent: 2003/0235153 (2003-12-01), Lee et al.
“Hardness of Path-Exchange Problem” by B. Shepherd and A. Gupta; Personal Communication; Oct. 22, 2001; 2 pg.
M.3100; “Definition of the Management Interface for a Bridge-and Roll Cross-Connect Feature” Amendment 4; ITU-T; Aug. 2001; 15 pg.
“Demand Routing and Slotting on Ring Networks” by T.J. Carpenter, et al.; DIMACS Technical Report; Tech. Rep.; Jan. 1997; 28 pg.
“The Ring Loading Problem” by A. Schrijver, et al.; SIAM Journal of Discrete Math; vol. 11, No. 1; Feb. 1998;14 pg.
“MPLS Network Tuning: Enabling Hitless Network Engineering” S. Acharya, et al.; International Conference on Communications; 2003; 5 pg.
“Optimal Load Balancing on SONET Bidirectional Rings” by Y. Myung, et al.; Operations Research; vol. 45; Jan. 1997; pp. 148-152.
SONET Bidirectional Line Switched Ring Equipment Generic Criteria: GR-1230-CORE; Bellcore; Dec. 1998; 235 pg.
Acharya Swarup
Gupta Bhawna
Risbood Pankaj
Srivastava Anurag
Alcatel-Lucent USA Inc.
Hitt Gaines PC
Ngo Ricky
Phung Luat
LandOfFree
System and method for rerouting circuits on SONET and SDH... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for rerouting circuits on SONET and SDH..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for rerouting circuits on SONET and SDH... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2705184