Optical communications – Fault recovery – Bypass inoperative element
Reexamination Certificate
2003-10-02
2008-12-02
Phan, Hanh (Department: 2613)
Optical communications
Fault recovery
Bypass inoperative element
C398S001000, C398S002000, C398S003000, C398S004000, C398S007000, C398S010000, C398S012000, C398S017000, C398S019000, C398S045000, C398S048000, C398S050000, C398S054000, C398S056000, C398S057000, C398S033000, C398S031000, C398S059000, C370S216000, C370S217000, C370S221000, C370S224000, C370S227000, C370S228000, C370S389000, C370S238000
Reexamination Certificate
active
07460783
ABSTRACT:
Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures in optical networks are described. One embodiment is a method for allocation of protection paths after a failure in an optical network. The method comprises, responsive to a failure in an active lightpath, switching traffic on the active lightpath to a protection path; subsequent to the switching, identifying all active lightpaths in the network that no longer have an available protection path; and attempting to allocate a protection path to each of the identified active lightpaths.
REFERENCES:
patent: 7039005 (2006-05-01), Jenq et al.
patent: 2002/0093954 (2002-07-01), Weil et al.
patent: 2004/0109683 (2004-06-01), Mistry et al.
S. Darisala et al.; “On the Convergence of the Link-State Advertisement Protocol in Survivable WDM Mash Networks”; The 7th IFIP Working Conference on Optical Network Design & Modeling (ONDM), 2003; pp. 1-15.
Ramamurthy, et al.; Capacity Performance of Dynamic Provisioning in Optical Networks; Journal of Lightwave Technology; Jan. 2001; pp. 40-48.
Choi, et al.; On Double-Link Failure Recovery in WDM Optical Networks; INFOCOM 2002; Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies; 2002; vol. 2; pp. 808-816.
Sengupta, et al.; From Network Design to Dynamic Provisioning and Restoration in Optical Cross-Connect Mesh Networks: An Architectural and Algorithmic Overview; IEEE; Jul.-Aug. 2001; vol. 15, Iss. 4, pp. 46-54.
Clouqueur et al.; Availability Analysis of Span-Restorable Mesh Networks; IEEE Journal on Selected Areas in Communications; May 2002; vol. 20, Iss. 4, pp. 810-821.
Grover, W.; Distributed Restoration of the Transport Network; Network Management into the 21st Century; 1994; pp. 337-417.
Ali Maher
Darisala Sandeep
Eli-Dit-Cosaque David
Fumagalli Andrea
Kothandaraman Parthasarathy
Alcatel Lucent
Phan Hanh
LandOfFree
Method and apparatus for dynamic provisioning of reliable... 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 dynamic provisioning of reliable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for dynamic provisioning of reliable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029784