Control of optical connections in an optical network

Multiplex communications – Fault recovery – Bypass an inoperative channel

Reexamination Certificate

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Details

C370S254000

Reexamination Certificate

active

07039009

ABSTRACT:
A method for lightpath restoration in a reconfigurable optical network comprises the steps of naming each network addressable element in said reconfigurable optical network, determining current topology in said reconfigurable optical network, determining current resources in said reconfigurable optical network, requesting establishment of a lightpath, requesting reservation of restoration capacity, allocating the lightpath, and reserving the restoration capacity. Also disclosed is a method for lightpath restoration that comprises the steps of reserving restoration capacity, detecting transmission failures in the reconfigurable optical network, handling exceptions as a result of transmission failures, and allocating transmission capacity.

REFERENCES:
patent: 5710885 (1998-01-01), Bondi
patent: 6728484 (2004-04-01), Ghani
patent: 2004/0042402 (2004-03-01), Galand et al.
Callon et al. “A Framework for Multiprotocol Label Switching”. Network Working Group. Jun. 24, 1999. pp. 1-69.
A. Greenberg, et al., Smart Routers-Simple Optics A Network Architecture for IP over WDM, AT&T Labs—Research, Mar. 2000, pp. 292-294.
D. Awduche, et al., Multi-Protocol Lambda Switching: Combining MPLS Traffic Engineering Control With Optical Crossconnects, IETF Internet draft, Oct. 2001.
Chaudhuri, et al., Control of Lightpaths in an Optical Network, IETF Internet draft, Aug. 2000.
Baroni, Stefano, et al., Backbone Network Architectures for IP Optical Networking, pp. 159-162, Optical Fiber Commun. Conf., Tukw, Mar. 2000.
Gerstel, Ornan, et al., Optical Layer Survivability: A Services Perspective., IEEE Commun, Mag., Mar. 2000, pp. 104-113.
Demeester, Piet, et al. Resilience in Multilayer Networks, IEEE Commun. Mag., Aug. 1999, pp. 70-76.
Hyalmtysson, G., et al., Simple IP Restoration to IP/GbE/10GbE Optical Networks, Optical Fiber Commun. Conf., PDP-36, pp. 275-277, Mar. 2000.
Chi, A., et al. Features and Requirements for the Optical Layer Control Plane, IETF Internet draft, Feb. 2001.
Coan, Brian A., et al. Using Distrib. Topology Update & Preplanned Config to Achieve Trunk Network Survivability IEEE Trans Reliability vol. 40 No. 4 pp. 404-416, Oct. 1991.
Doshi, Bhorat, T., et al. A Comparison of Next Generation IP-Centric Transport Architectures, Bell Labs Technical Journal, pp. 63-85, Dec. 1998.
Zyskind, John L., et al. Performance Issues in WEM Transport Networks, OFC '98 Technical Digest, pp. 161-162, 1998.
Chlamtac, Imrich, et al., Lightpath Communications: An Approach to High Bandwidth Optical WAN's, IEEE Trans. on Communications, vol. 40, No. 7, Jul. 1992.
Ashwood-Smith, Peter, et al., “Generalized MPLS—Signaling Functional Description”, Network Working Group Internet Draft, Aug. 2000.
Kompella, Kireeti, et al/. “Extensions to IS-IS/OSPF and RSVP in Sopport of MPL(ambda)S”, Network Working Group, Internet Draft, Aug. 2000.
DBO Press Releases, “Ericsson Assers Leadership in Multi-Protocol label Switching”, at www.ericsson.se/datacom
ews/press—room/releases/19991015-0064.shtml, Nov. 12, 2000.
“Mutliprotocol Label Switching(MPLS)” from www.ietf.org/html.charters/mpls-charter.html, Nov. 12, 2000, 5 pages.
“Multi Protocol Label Switching”, from www.ieng.com/warp/public/co/techno/mplsty/index.shtml, Nov. 12, 2000, 5 pages.
“Multi Protocol Lable Switching (MPLS) 1078184”, Trillium Product Information, from www.trillium.com/products/atm/1078184.html, Nov. 12, 2000, 4 pages.
“Multi Protocol Label Switching (MPLS)”Slide 14 of 30, from www.tml.hutOpinnot/Tik-110.350/1999/Kalvot/TKV280499/sld014.htm, Slide 15 of 30, from www.tml.hut.fi/Opinnot/Tik-110.350/1999/Kalvot/TKV280499/sid015.htm and Slide 16 of 30, from www.tml.hut.fi/Opinnot/Tik-110.50/1999/Kalvot/TKV280499/sid016.htm Nov. 12, 2000.
Hjalmtysson, G, et al., “Restoration Services for the Optical Internet”, AT&T Labs—Research, Undated.
D. Basak, et al., Multi-Protocol Lambda Switching: Issues in Combining MPLS Traffic Engineering Control with Optical Crossconnects, IETF Internet Draft, Jul. 2000.

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