CA2268406A1 - Optical cross-connect restoration technique - Google Patents

Optical cross-connect restoration technique Download PDF

Info

Publication number
CA2268406A1
CA2268406A1 CA002268406A CA2268406A CA2268406A1 CA 2268406 A1 CA2268406 A1 CA 2268406A1 CA 002268406 A CA002268406 A CA 002268406A CA 2268406 A CA2268406 A CA 2268406A CA 2268406 A1 CA2268406 A1 CA 2268406A1
Authority
CA
Canada
Prior art keywords
traffic
restoration
failure
alarm
network
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
CA002268406A
Other languages
French (fr)
Other versions
CA2268406C (en
Inventor
Thomas S. Afferton
John Lester Strand
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of CA2268406A1 publication Critical patent/CA2268406A1/en
Application granted granted Critical
Publication of CA2268406C publication Critical patent/CA2268406C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0286—WDM hierarchical architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0284—WDM mesh architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection
    • H04J14/0291—Shared protection at the optical multiplex section (1:1, n:m)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects
    • H04Q2011/0092—Ring

Abstract

An alarm and restoration system (28) accomplishes restoration in a ring network (10 1) by monitoring network traffic to detect the occurrence of a single failure arising from a failed optical service path (14i) and the occurrence of a double failure arising from a failed optical service path and an occupied optical protection path (16i). In case of a single failure, the alarm and restoration system (28) restores traffic in the network itself by routing traffic on a restoration path.
In the event of a double failure, the alarm and restoration system (28) routes traffic from the failed ring network through an Optical Cross-Connect mesh (22) to transform the double failure into a single failure that can be restored in the network itself.
CA002268406A 1998-04-22 1999-04-07 Optical cross-connect restoration technique Expired - Fee Related CA2268406C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/064,410 1998-04-22
US09/064,410 US6278689B1 (en) 1998-04-22 1998-04-22 Optical cross-connect restoration technique

Publications (2)

Publication Number Publication Date
CA2268406A1 true CA2268406A1 (en) 1999-10-22
CA2268406C CA2268406C (en) 2003-01-07

Family

ID=22055797

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002268406A Expired - Fee Related CA2268406C (en) 1998-04-22 1999-04-07 Optical cross-connect restoration technique

Country Status (4)

Country Link
US (1) US6278689B1 (en)
EP (1) EP0952694A3 (en)
JP (1) JP3441671B2 (en)
CA (1) CA2268406C (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11313095A (en) * 1998-04-28 1999-11-09 Nec Corp Ring network system, protection method and protection processing program recording medium
US20030086367A1 (en) * 1998-09-08 2003-05-08 Lee D. Bengston Method for monitoring spare capacity of a dra network
US6721508B1 (en) 1998-12-14 2004-04-13 Tellabs Operations Inc. Optical line terminal arrangement, apparatus and methods
US6813240B1 (en) * 1999-06-11 2004-11-02 Mci, Inc. Method of identifying low quality links in a telecommunications network
US6643464B1 (en) * 1999-07-07 2003-11-04 Nortel Networks Limited Constrained optical mesh protection for transmission systems
JP2001244897A (en) * 2000-03-01 2001-09-07 Kddi Corp Optical transmission system and node adding method
US7426179B1 (en) * 2000-03-17 2008-09-16 Lucent Technologies Inc. Method and apparatus for signaling path restoration information in a mesh network
US6377731B1 (en) * 2000-05-25 2002-04-23 Avanex Corporation Optical cross connect utilizing grating-based channel routers
US6981228B1 (en) * 2000-09-29 2005-12-27 Sbc Technology Resources, Inc. Interactive topology graphs for visualization and characterization of SONET consumption patterns
CA2359168A1 (en) * 2000-10-25 2002-04-25 John Doucette Design of meta-mesh of chain sub-networks
JP2002271354A (en) * 2001-03-06 2002-09-20 Fujitsu Ltd Light path switching apparatus and light wavelength multiplex diversity communication system
US20020154351A1 (en) * 2001-04-24 2002-10-24 Feinberg Lee Daniel Optical network architecture with reduced equipment
US20020191247A1 (en) * 2001-04-30 2002-12-19 Xiang Lu Fast restoration in optical mesh network
US7161898B1 (en) * 2001-05-15 2007-01-09 Alcatel Common protection architecture for optical network
US7158720B1 (en) 2001-05-15 2007-01-02 Alcatel Optical shared protection ring for multiple spans
US7158478B1 (en) 2001-07-11 2007-01-02 Alcatel Method and apparatus for signalling in a shared protection ring architecture
US20040028317A1 (en) * 2001-11-20 2004-02-12 Mclean Robert Network design allowing for the delivery of high capacity data in numerous simultaneous streams, such as video streams
US7860391B1 (en) 2002-05-08 2010-12-28 Cisco Technology, Inc. Highly resilient architecture for DWDM networks providing 1+1 optical Channel Protection
US20040179472A1 (en) * 2003-03-14 2004-09-16 Farid Khalilzadeh Shared path protection method and system
EP1463219B1 (en) * 2003-03-27 2008-08-27 Blohm + Voss GmbH Ship comprising an optical fibre network
US8155515B2 (en) * 2003-12-29 2012-04-10 Verizon Business Global Llc Method and apparatus for sharing common capacity and using different schemes for restoring telecommunications networks
US7643407B2 (en) * 2004-01-29 2010-01-05 Nortel Networks Limited Method and apparatus for determining protection transmission unit allocation
US7391720B1 (en) * 2004-02-02 2008-06-24 Ciena Corporation Local span mesh restoration (LSMR)
CN100461689C (en) * 2005-01-19 2009-02-11 华为技术有限公司 Method of protection of agent nodes in multi-layered automatic switching optical network
CN100395994C (en) * 2005-06-23 2008-06-18 华为技术有限公司 Channel failure handling method in ASON
CN100382504C (en) * 2005-07-14 2008-04-16 广东省电信有限公司研究院 Cross-over end-to-end connection setting method for main apparatus protection in automatic exchange optical network
US7519293B1 (en) * 2005-09-08 2009-04-14 Sprint Communications Company Lp Optical communication system having ring-based restoration using shared protect links
US7765385B2 (en) * 2007-04-18 2010-07-27 International Business Machines Corporation Fault recovery on a parallel computer system with a torus network
US7929860B2 (en) * 2007-10-15 2011-04-19 Motorola Mobility, Inc. System and method for sonet equipment fault management
KR20130070171A (en) * 2011-12-19 2013-06-27 한국전자통신연구원 Packet-optic convergence switching system and packet path protecting method thereof
JP5949255B2 (en) 2012-07-18 2016-07-06 富士通株式会社 Communication control apparatus and communication control method
JP7151896B2 (en) * 2019-06-17 2022-10-12 日本電信電話株式会社 TRANSMISSION LINE DESIGN DEVICE, TRANSMISSION NETWORK TOPOLOGY DESIGN METHOD, AND TRANSMISSION LINE DESIGN PROGRAM

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181134A (en) 1991-03-15 1993-01-19 At&T Bell Laboratories Photonic cross-connect switch
JP2812834B2 (en) * 1992-03-18 1998-10-22 富士通株式会社 Node device for multi-ring circuit and multi-ring network using the node device
JPH07264227A (en) * 1994-03-18 1995-10-13 Fujitsu Ltd Composite ring network control system
US5625478A (en) * 1995-09-14 1997-04-29 Lucent Technologies Inc. Optically restorable WDM ring network using simple add/drop circuitry
US5751696A (en) * 1996-01-02 1998-05-12 Lucent Technologies Inc. Multiplexed-communications network having mixed protection against faults and errors
JP2937232B2 (en) * 1996-05-20 1999-08-23 日本電気株式会社 Communication network, communication network failure recovery method, and optical communication network node
US5859836A (en) * 1996-07-29 1999-01-12 At&T Corp Alternate ring restoration technique
US5708753A (en) 1996-09-24 1998-01-13 Lucent Technologies Inc. Method of recovering from a fiber-cable cut using random splicing reconnection
US5726788A (en) 1996-09-30 1998-03-10 Mci Corporation Dynamically reconfigurable optical interface device using an optically switched backplane
US5909175A (en) * 1997-02-28 1999-06-01 Fujitsu Limited Connection switching circuit for ring system

Also Published As

Publication number Publication date
US6278689B1 (en) 2001-08-21
JP3441671B2 (en) 2003-09-02
CA2268406C (en) 2003-01-07
JPH11331227A (en) 1999-11-30
EP0952694A3 (en) 2005-07-20
EP0952694A2 (en) 1999-10-27

Similar Documents

Publication Publication Date Title
CA2268406A1 (en) Optical cross-connect restoration technique
CA2056298A1 (en) Telecommunications network restoration architecture
US6414940B1 (en) Method and system of managing unidirectional failures in a distributed restoration network
CA2222160A1 (en) Method and system for identifying fault locations in a communications network
EP1126649A3 (en) Method and apparatus for providing a more efficient use of the total bandwidth capacity in a synchronous optical network
KR940006367A (en) Method and system for protecting group facilities in digital telecommunication systems
CA2156427A1 (en) Event Correlation in Telecommunications Networks
CA2392942A1 (en) Protection system and method for resilient packet ring (rpr) interconnection
CA2233732C (en) System and method for achieving efficient coordination of protection switching
EP0779718A3 (en) Optical communication network and method for optically detecting a fault
WO2003024029A3 (en) Metropolitan area local access service system
FI963247A (en) A telecommunications network comprising a channel connection verification arrangement
CA2102867C (en) Switch bypass for a public safety calling system
CA2131260A1 (en) Call Monitoring System for Intelligent Call Processing
MX9605976A (en) Signal protection and monitoring system.
CA2294828C (en) Self-healing ring network and a method for fault detection and rectifying
BR9904033A (en) Safety restoration technique for sonet / sdh rings
WO1998024220A3 (en) Method and apparatus for isolating network failures by correlating paths issuing alarms with failure spans
DE69322137T2 (en) Function monitoring and fault localization for optical systems, systems and networks
CN101431371A (en) Method and apparatus for signal channel protection switching of optical network equipment
CA2227022A1 (en) Restoration network architecture
CA2309012A1 (en) Method for rerouting intra-office digital telecommunications signals
CN100367729C (en) Optical transmission looped network rapid protection method
EP0996309A3 (en) Ring network system and transmission apparatus
JP3593956B2 (en) Subscriber line terminal equipment

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20160407