Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2008-07-29
2008-07-29
Pham, Chi H. (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S225000, C370S228000
Reexamination Certificate
active
10084201
ABSTRACT:
In a mesh communications network, in which working and protection paths may be established, channels used to carry protection traffic between nodes are shared across multiple protection paths. Channels need only be shared if sharing does not adversely impact network usage. If working and protection paths become susceptible to single points of failure, channels need not be shared.
REFERENCES:
patent: 5856981 (1999-01-01), Voelker
patent: 5999103 (1999-12-01), Croslin
patent: 6147966 (2000-11-01), Johnson et al.
patent: 6154296 (2000-11-01), Elahmadi et al.
patent: 6314092 (2001-11-01), Reeve
patent: 6331905 (2001-12-01), Ellinas et al.
patent: 6421349 (2002-07-01), Grover
patent: 6658457 (2003-12-01), Nishikawa et al.
patent: 6744727 (2004-06-01), Liu et al.
patent: 6829216 (2004-12-01), Nakata
patent: 6850997 (2005-02-01), Rooney et al.
patent: 6856592 (2005-02-01), Grover et al.
patent: 6895441 (2005-05-01), Shabtay et al.
patent: 6963995 (2005-11-01), Fee
patent: 6978394 (2005-12-01), Charny et al.
patent: 7020087 (2006-03-01), Steinberg et al.
patent: 7093160 (2006-08-01), Lau et al.
patent: 2001/0032271 (2001-10-01), Allan
patent: 2004/0062197 (2004-04-01), Klink
Awduche, D., Malcolm, J., Agogbua, J., O'Dell, M. and McManus, J., RFC 2702: Requirements for Traffic Engineering Over MPLS, 1999.
Rosen, E., Viswanathan, A., and Callon, R. RFC 3031: Multiprotocol Label Switching Architecture, 2001.
Rosen, E., Tappan, D., Fedorkow, G., Rekhter, Y., Farinacci, D., Li, T., and Conta, A., RFC 3032: MPLS Label Stack Encoding, 2001.
Suzuki, M., RFC 3033: The Assignment of the Information Field and Protocol Identifier in the Q. 2941 Generic Identifier and Q.2957 User-to-User Signaling for the Internet Protocol, 2001.
Conta, A., Doolan, P., and Malis, A., RFC 3034: Use of Label Switching on Frame Relay Networks Specification, 2001.
Davie, B., Lawrence, J., McCloghrie, K., Rosen, E., Swallow, G., Rekhter, Y., and Doolan, P., RFC 3035: MPLS and LDP and ATM VC Switching, 2001.
Andersson, L., Doolan, P., Feldman, N., Fredette, A., and Thomas, B., RFC 3036: LDP Specification, 2001.
Thomas, B., and Gray, E., RFC 3037: LDP Applicability, 2001.
Nagami, K., Katsube, Y., Demizu, N., Esaki, H., and Doolan, P., RFC 3038: VCID Notification over ATM link for LDP, 2001.
Ohba, Y., Katsube, Y., Rosen, E., and Doolan, P., RFC 3063: MPLS Loop Prevention Mechanism, 2001.
Rekhter, Y., and Rosen, E., RFC 3107: Carrying Label Information in BGP-4, 2001.
Berstein, Greg et al., “Framework for GPMLS-based Control of SDH/SONET Networks”, CCAMP Internet Draft, <draft-bms-optical-sdhsonet-mpls-control-frmwrk-01.txt>, Jul. 2001.
Owens, Ken et al., “Extensions to RSVP-TE for MPLS Path Protection” IETF Internet Draft, <draft-chang-mpls-rsvpte-path-protection-ext-02.txt>, Jul. 2001.
Sharma, Vishal et al., “Framework for MPLS based Recovery” MPLS Working Group Information Track, <draft-ietf-mpls-recovery-frmwrk-03.txt>, Jul. 2001.
Owens, Ken et al., “A Path Protection/Restoration mechanism for MPLS Networks” IETF Internet Draft, <draft-chang-mpls-path-protection-03.txt>, Jul. 2001.
Awduche, Daniel O. et al, “RSVP-TE Extensions to RSVP for LSP Tunnels”, Network Working Group Internet Draft, <draft-ietf-mpls-rsvp-lsp-tunnel-09.txt>, Aug. 2001.
Ashwood-Smith Peter J.
deBoer Evert E.
Shields James A.
Wedge Rick R.
Anderson Gorecki & Manaras
Hyun Soon-Dong D
Nortel Networks Limited
Pham Chi H.
LandOfFree
Methods, devices and software for combining protection paths... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods, devices and software for combining protection paths..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods, devices and software for combining protection paths... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3941406