CA2164071A1 - Optical communication system - Google Patents

Optical communication system

Info

Publication number
CA2164071A1
CA2164071A1 CA002164071A CA2164071A CA2164071A1 CA 2164071 A1 CA2164071 A1 CA 2164071A1 CA 002164071 A CA002164071 A CA 002164071A CA 2164071 A CA2164071 A CA 2164071A CA 2164071 A1 CA2164071 A1 CA 2164071A1
Authority
CA
Canada
Prior art keywords
protection
link
nodes
link failure
node
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002164071A
Other languages
French (fr)
Other versions
CA2164071C (en
Inventor
Thomas P. J. Flanagan
Siraj E. Elahmadi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciena Luxembourg SARL
Original Assignee
Thomas P. J. Flanagan
Siraj E. Elahmadi
Bnr Inc.
Northern Telecom Limited
Nortel Networks Corporation
Nortel Networks Limited
Ciena Luxembourg S.A.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomas P. J. Flanagan, Siraj E. Elahmadi, Bnr Inc., Northern Telecom Limited, Nortel Networks Corporation, Nortel Networks Limited, Ciena Luxembourg S.A.R.L. filed Critical Thomas P. J. Flanagan
Publication of CA2164071A1 publication Critical patent/CA2164071A1/en
Application granted granted Critical
Publication of CA2164071C publication Critical patent/CA2164071C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0221Power control, e.g. to keep the total optical power constant
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03Arrangements for fault recovery
    • H04B10/032Arrangements for fault recovery using working and protection systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0278WDM optical network architectures
    • H04J14/0283WDM ring architectures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0287Protection in WDM systems
    • H04J14/0289Optical multiplex section protection
    • H04J14/0291Shared protection at the optical multiplex section (1:1, n:m)
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0287Protection in WDM systems
    • H04J14/0293Optical channel protection
    • H04J14/0295Shared protection at the optical channel (1:1, n:m)
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/02Wavelength-division multiplex systems
    • H04J14/0287Protection in WDM systems
    • H04J14/0297Optical equipment protection

Abstract

A discontinuous ring is formed by separate bidirectional optical communication links, with possibly different transmission speeds, synchronous or asynchronous transmission, and ratios of working to protection channels, each linking a pair of terminals in different nodes of a communication system. To protect protection-switched traffic on a communication link from a link failure, it is routed around the ring via the protection channel of the other communication links. To this end, an optical switch is provided between the protection channel of each link and the associated terminals in each node, and is controlled differently in nodes adjacent the link failure and in nodes not adjacent the link failure to route the protection-switched traffic accordingly. Rapid protection switching is facilitated by controlling the optical switches using wavelength detectors directionally coupled to the protection channel at each node.
CA002164071A 1995-09-06 1995-11-29 Optical communication system Expired - Lifetime CA2164071C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US328695P 1995-09-06 1995-09-06
US60/003,286 1995-09-06

Publications (2)

Publication Number Publication Date
CA2164071A1 true CA2164071A1 (en) 1997-03-07
CA2164071C CA2164071C (en) 2001-08-21

Family

ID=21705075

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002164071A Expired - Lifetime CA2164071C (en) 1995-09-06 1995-11-29 Optical communication system

Country Status (6)

Country Link
US (1) US5933258A (en)
EP (1) EP0848873B1 (en)
JP (1) JP3362228B2 (en)
CA (1) CA2164071C (en)
DE (1) DE69627165T2 (en)
WO (1) WO1997009803A1 (en)

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DE19807069A1 (en) 1998-02-20 1999-08-26 Bosch Gmbh Robert Optical signal transmission method for optical information communications
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US6968130B1 (en) * 1999-09-07 2005-11-22 Nokia Corporation System and method for fully utilizing available optical transmission spectrum in optical networks
US6891942B1 (en) 1999-09-16 2005-05-10 Mci, Inc. Method and system for using caller preferences to direct special call handling
US7386236B1 (en) 1999-09-27 2008-06-10 Alloptic, Inc. Multiple wavelength TDMA optical network
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US6735392B1 (en) * 1999-10-18 2004-05-11 Nortel Networks Limited System and method for transmitting and restoring an optical signal
US7139477B2 (en) * 1999-11-03 2006-11-21 Eci Telecom Ltd. Method and system for diverting traffic in a communication network
IL132726A (en) * 1999-11-03 2003-07-31 Eci Telecom Ltd Method and system for transmitting optical communication
JP4215369B2 (en) * 2000-02-09 2009-01-28 株式会社日立コミュニケーションテクノロジー Network transmission apparatus and network transmission system
EP1126741A1 (en) * 2000-02-15 2001-08-22 Siemens Aktiengesellschaft Method for protection switching of transmission equipment in MPLS networks
US6894978B1 (en) * 2000-03-10 2005-05-17 Noriaki Hashimoto Method and system for operation of a resilient closed communication network without a dedicated protection network segment
AU2001268034A1 (en) * 2000-03-10 2001-09-17 Corning Incorporated Devices and methods for controlling protection switching in an optical channel shared protection ring
EP1148667A1 (en) * 2000-04-20 2001-10-24 TELEFONAKTIEBOLAGET L M ERICSSON (publ) A multi-wavelength/multi-channel optical system
US7096275B1 (en) 2000-06-06 2006-08-22 Lucent Technologies Inc. Methods and apparatus for protection against network failures
WO2002005438A2 (en) * 2000-07-07 2002-01-17 Sycamore Networks, Inc. Bi-directional wavelength switched ring optical protection switching protocol
US7170852B1 (en) * 2000-09-29 2007-01-30 Cisco Technology, Inc. Mesh with projection channel access (MPCA)
US6856767B2 (en) * 2000-10-06 2005-02-15 Alphion Corporation Optical signal quality selection system
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WO2002054633A1 (en) * 2000-12-30 2002-07-11 Redback Networks Inc. Non-blsr protected layer 2/3 channel provisioning
US6975589B2 (en) * 2000-12-30 2005-12-13 Redback Networks Inc. Method and apparatus for a hybrid variable rate pipe
US7209436B1 (en) * 2000-12-30 2007-04-24 Redback Networks Inc. Method and apparatus for variable rate pipes
CN1184752C (en) * 2001-02-05 2005-01-12 华为技术有限公司 Virtual protection method and device for optical fibre path
US20050086232A1 (en) * 2001-02-05 2005-04-21 Jixiong Dong Virtual protection method and device for fiber path
DE10126334A1 (en) * 2001-05-30 2002-12-12 Siemens Ag Optical protection system for an optical communication system
US20020181037A1 (en) * 2001-06-01 2002-12-05 Richard Lauder Failure protection switching in optical network
US7372803B2 (en) * 2001-07-24 2008-05-13 Nortel Networks Limited Apparatus and method for establishment and protection of connections within mesh networks
US7054264B2 (en) * 2001-07-24 2006-05-30 Corrigent Systems Ltd. Interconnect and gateway protection in bidirectional ring networks
US7061859B2 (en) 2001-08-30 2006-06-13 Corrigent Systems Ltd. Fast protection in ring topologies
US7305623B2 (en) * 2001-12-03 2007-12-04 Lucent Technologies Inc. Method and apparatus for managing and representing elements in a network
US20040208586A1 (en) * 2002-03-27 2004-10-21 Susumu Kinoshita System and method for amplifying signals in an optical network
DE10237584B4 (en) * 2002-08-16 2005-10-06 Siemens Ag Method for managing resources when setting up a replacement path in a transparently switchable network
CN100370700C (en) 2004-04-14 2008-02-20 华为技术有限公司 Realizing method and device for optical path shared protection in wave division complex system
CN101453666B (en) * 2007-12-07 2012-07-04 华为技术有限公司 Main and standby link protection method, loop system and apparatus for passive optical network
FR2978315B1 (en) * 2011-07-20 2013-09-13 Thales Sa INFORMATION TRANSMISSION NETWORK AND CORRESPONDING NETWORK NODE
FR2983017B1 (en) * 2011-11-22 2014-01-10 Thales Sa INFORMATION TRANSMISSION NETWORK AND NETWORK CORRESPONDING NOZZLE
FR2983018B1 (en) * 2011-11-22 2014-01-10 Thales Sa INFORMATION TRANSMISSION NETWORK AND PROGRAMMABLE NETWORK NUTS
FR2987204B1 (en) 2012-02-16 2014-03-21 Thales Sa INFORMATION TRANSMISSION NETWORK AND NODE
FR2987201B1 (en) 2012-02-16 2017-12-01 Thales Sa INFORMATION TRANSMISSION NETWORK AND TRANSMISSION RING NODE
FR2987202B1 (en) 2012-02-16 2014-03-28 Thales Sa NODE AND INFORMATION TRANSMISSION NETWORK
FR2987203B1 (en) * 2012-02-16 2014-03-28 Thales Sa NETWORK AND NETWORK OF INFORMATION TRANSMISSION NETWORK
FR2996090B1 (en) * 2012-09-21 2014-10-31 Thales Sa INFORMATION TRANSMISSION NETWORK HAVING INSERT AUTHORIZATION AND CORRESPONDING NODE
US10826601B2 (en) * 2019-01-16 2020-11-03 Ciena Corporation Optical switch with path continuity monitoring for optical protection switching

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Also Published As

Publication number Publication date
DE69627165D1 (en) 2003-05-08
CA2164071C (en) 2001-08-21
EP0848873B1 (en) 2003-04-02
JP3362228B2 (en) 2003-01-07
US5933258A (en) 1999-08-03
EP0848873A1 (en) 1998-06-24
JPH10511250A (en) 1998-10-27
WO1997009803A1 (en) 1997-03-13
DE69627165T2 (en) 2003-11-13

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Effective date: 20151130