CA2094642A1 - Distributed switching in bidirectional multiplex section-switched ring transmission systems - Google Patents

Distributed switching in bidirectional multiplex section-switched ring transmission systems

Info

Publication number
CA2094642A1
CA2094642A1 CA2094642A CA2094642A CA2094642A1 CA 2094642 A1 CA2094642 A1 CA 2094642A1 CA 2094642 A CA2094642 A CA 2094642A CA 2094642 A CA2094642 A CA 2094642A CA 2094642 A1 CA2094642 A1 CA 2094642A1
Authority
CA
Canada
Prior art keywords
ring
multiplex section
ring transmission
bidirectional multiplex
transmission systems
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
CA2094642A
Other languages
French (fr)
Other versions
CA2094642C (en
Inventor
William C. Marra
Darius D. Slavinskas
Mark J. Soulliere
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
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2094642A1 publication Critical patent/CA2094642A1/en
Application granted granted Critical
Publication of CA2094642C publication Critical patent/CA2094642C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H04J3/085—Intermediate station arrangements, e.g. for branching, for tapping-off for ring networks, e.g. SDH/SONET rings, self-healing rings, meashed SDH/SONET networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0028—Local loop
    • H04J2203/0039—Topology
    • H04J2203/0042—Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057—Operations, administration and maintenance [OAM]
    • H04J2203/006—Fault tolerance and recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET

Abstract

Long delays in bidirectional multiplex section-switched self-healing ring transmission systems are avoided by eliminating looping of communications signals when restoring them in response to a failure in the ring and by distributing switching of paths to be protected to ring nodes other than those immediately adjacent the failure. This is realized by provisioning each node in the bidirectional multiplex section-switched ring transmission system with a map of its traffic pattern (all active tributaries) and the relative position of each ring node in the ringtransmission system, and allowing the ring node, if it has communications traffic affected by the failure, to bridge and switch to and from the protection path.
CA002094642A 1992-06-02 1993-04-22 Distributed switching in bidirectional multiplex section-switched ring transmission systems Expired - Fee Related CA2094642C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US892,079 1992-06-02
US07/892,079 US5341364A (en) 1992-06-02 1992-06-02 Distributed switching in bidirectional multiplex section-switched ringtransmission systems

Publications (2)

Publication Number Publication Date
CA2094642A1 true CA2094642A1 (en) 1993-12-03
CA2094642C CA2094642C (en) 1999-06-15

Family

ID=25399330

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002094642A Expired - Fee Related CA2094642C (en) 1992-06-02 1993-04-22 Distributed switching in bidirectional multiplex section-switched ring transmission systems

Country Status (5)

Country Link
US (1) US5341364A (en)
EP (1) EP0573211B1 (en)
JP (1) JP3195465B2 (en)
CA (1) CA2094642C (en)
DE (1) DE69326382T2 (en)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442623A (en) * 1992-08-17 1995-08-15 Bell Communications Research, Inc. Passive protected self healing ring network
JPH0723052A (en) * 1993-06-22 1995-01-24 Matsushita Electric Ind Co Ltd Method and device for line concentration of ring type network
DE69432965T2 (en) * 1993-08-24 2004-05-27 Canon K.K. Network for connecting multiple nodes using multiple channels
JPH0795225A (en) * 1993-09-20 1995-04-07 Fujitsu Ltd Bidirectional ring network control system
US5412652A (en) * 1993-09-24 1995-05-02 Nec America, Inc. Sonet ring subnetwork management method
GB9403223D0 (en) * 1994-02-19 1994-04-13 Plessey Telecomm Telecommunications network including remote channel switching protection apparatus
US5742605A (en) * 1994-02-28 1998-04-21 Sprint Communications Co., L.P. Synchronous optical network using a ring architecture
KR970003527B1 (en) * 1994-05-14 1997-03-18 재단법인 한국전자통신연구소 Bilateral multichannel optical ring networks using wdm techniques
JPH0897841A (en) * 1994-09-29 1996-04-12 Hitachi Ltd Method for controlling path changeover transmitter and the path changeover transmitter
KR0123064B1 (en) * 1994-12-02 1997-11-24 양승택 Fault allowable network structure
JP2630283B2 (en) * 1994-12-21 1997-07-16 日本電気株式会社 Orderwire communication control method for ring network system
US5546452A (en) 1995-03-02 1996-08-13 Geotel Communications Corp. Communications system using a central controller to control at least one network and agent system
JP2677244B2 (en) * 1995-05-10 1997-11-17 日本電気株式会社 Protection control signal transmission system
JP2616486B2 (en) * 1995-05-17 1997-06-04 日本電気株式会社 Synchronous network ring network system
US5699356A (en) * 1995-07-17 1997-12-16 Mci Communication System and method for personal communication system dynamic channel allocation
JP3259126B2 (en) * 1995-09-26 2002-02-25 富士通株式会社 Ring transmission system and squelch method for the system
US5731887A (en) * 1995-12-22 1998-03-24 Mci Communications Corporation System and method for photonic facility and line protection switching
US5777761A (en) * 1995-12-22 1998-07-07 Mci Communications Corporation System and method for photonic facility and line protection switching using wavelength translation
US6005694A (en) * 1995-12-28 1999-12-21 Mci Worldcom, Inc. Method and system for detecting optical faults within the optical domain of a fiber communication network
US6108113A (en) * 1995-12-29 2000-08-22 Mci Communications Corporation Method and system for transporting ancillary network data
US6285475B1 (en) 1995-12-29 2001-09-04 Mci Communications Corporation Method and system for detecting optical faults in a network fiber link
US5884017A (en) * 1995-12-29 1999-03-16 Mci Communications Corporation Method and system for optical restoration tributary switching in a fiber network
US5949755A (en) * 1996-04-12 1999-09-07 Fujitsu Network Communications, Inc. ATM emulated path protection
US5793745A (en) * 1996-05-06 1998-08-11 Bell Communications Research, Inc. Bundled protection switching in a wide area network background of the invention
US5903370A (en) * 1996-06-28 1999-05-11 Mci Communications Corporation System for an optical domain
US7643500B1 (en) 1996-10-22 2010-01-05 Sprint Communications Company L.P. Overhead replication for SONET signals
US7301953B1 (en) 1996-10-22 2007-11-27 Sprint Communications Company L.P. Method and system for transporting a secondary communication signal with a primary communication signal
US5940367A (en) * 1996-11-06 1999-08-17 Pluris, Inc. Fault-tolerant butterfly switch
US5838660A (en) * 1996-11-14 1998-11-17 Mci Communications Corporation Dynamic restoration process
CA2254606C (en) 1997-11-28 2003-06-17 Nec Corporation Ring network for sharing protection resource by working communication paths
US6128729A (en) * 1997-12-16 2000-10-03 Hewlett-Packard Company Method and system for automatic configuration of network links to attached devices
US6205158B1 (en) * 1997-12-19 2001-03-20 Nortel Networks Limited Network architectures with transparent transport capabilities
GB2332832B (en) * 1997-12-23 2003-06-04 Northern Telecom Ltd Communication system and method of routing information therein
JPH11225128A (en) * 1998-02-05 1999-08-17 Fujitsu Ltd Terminal station in synchronous communications network, mismatching detector for active and standby switch function and its method
US6269452B1 (en) 1998-04-27 2001-07-31 Cisco Technology, Inc. System and method for fault recovery for a two line bi-directional ring network
JPH11313095A (en) 1998-04-28 1999-11-09 Nec Corp Ring network system, protection method and protection processing program recording medium
US6246667B1 (en) 1998-09-02 2001-06-12 Lucent Technologies Inc. Backwards-compatible failure restoration in bidirectional multiplex section-switched ring transmission systems
US6349092B1 (en) * 1998-11-16 2002-02-19 Cisco Systems, Inc. BLSR node extension
US6816082B1 (en) * 1998-11-17 2004-11-09 Schlumberger Technology Corporation Communications system having redundant channels
JP3623680B2 (en) * 1999-01-11 2005-02-23 株式会社日立製作所 Network system having path verification function, path management apparatus, and exchange
US6885677B1 (en) 1999-03-12 2005-04-26 Fujitsu Limited Multiprotocol label switching routers
US6301254B1 (en) 1999-03-15 2001-10-09 Tellabs Operations, Inc. Virtual path ring protection method and apparatus
EP1177656B1 (en) * 1999-05-11 2008-02-13 BRITISH TELECOMMUNICATIONS public limited company Optical communications network
US6657969B1 (en) 1999-06-29 2003-12-02 Cisco Technology, Inc. Generation of synchronous transport signal data used for network protection operation
US7099578B1 (en) 1999-12-16 2006-08-29 Tellabs Operations Inc. 1:N protection in an optical terminal
US6683891B1 (en) * 1999-12-27 2004-01-27 Alcatel Method and apparatus for passing control information in a bidirectional line switched ring configuration
US6614785B1 (en) 2000-01-05 2003-09-02 Cisco Technology, Inc. Automatic propagation of circuit information in a communications network
JP3183292B1 (en) 2000-01-21 2001-07-09 味の素株式会社 How to make cooked rice
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
US7573915B1 (en) * 2000-04-25 2009-08-11 Cisco Technology, Inc. Method and apparatus for transporting network management information in a telecommunications network
US20020018616A1 (en) * 2000-05-19 2002-02-14 Ming-Jun Li Optical channel shared protection ring
US7715715B2 (en) 2000-06-22 2010-05-11 Tellabs Operations, Inc. Shared optical ring protection in a multi-fiber ring
US20030142678A1 (en) * 2000-07-28 2003-07-31 Chan Eric L. Virtual path ring protection method and apparatus
US6633573B1 (en) 2000-09-15 2003-10-14 Ciena Corporation Method and apparatus for generating massive interrupts in random access memory (RAM)
US6850705B2 (en) 2001-03-17 2005-02-01 Fujitsu Limited Online distributed path routing method and system
US7272307B2 (en) 2001-05-25 2007-09-18 Tellabs Operations, Inc. Virtual protection channel for fiber optic ring network
IL143658A (en) * 2001-06-10 2006-08-01 Eci Telecom Ltd Device, system and method for protecting communication
US6766482B1 (en) 2001-10-31 2004-07-20 Extreme Networks Ethernet automatic protection switching
US8498234B2 (en) 2002-06-21 2013-07-30 Qualcomm Incorporated Wireless local area network repeater
US8885688B2 (en) 2002-10-01 2014-11-11 Qualcomm Incorporated Control message management in physical layer repeater
AU2003274992A1 (en) * 2002-10-11 2004-05-04 Widefi, Inc. Reducing loop effects in a wireless local area network repeater
US8078100B2 (en) 2002-10-15 2011-12-13 Qualcomm Incorporated Physical layer repeater with discrete time filter for all-digital detection and delay generation
ATE402527T1 (en) 2002-10-15 2008-08-15 Qualcomm Inc WLAN REPEATER WITH AUTOMATIC GAIN CONTROL FOR EXTENDED NETWORK COVERAGE
EP1411665A1 (en) * 2002-10-18 2004-04-21 Alcatel Method and apparatus for shared protection in an optical transport network ring based on the ODU management
US7230935B2 (en) * 2002-10-24 2007-06-12 Widefi, Inc. Physical layer repeater with selective use of higher layer functions based on network operating conditions
JP2006506897A (en) 2002-11-15 2006-02-23 ワイデファイ インコーポレイテッド Wireless local area network detection repeater
AU2003300938A1 (en) 2002-12-16 2004-07-29 Widefi, Inc. Improved wireless network repeater
US8027642B2 (en) 2004-04-06 2011-09-27 Qualcomm Incorporated Transmission canceller for wireless local area network
EP1745567B1 (en) 2004-05-13 2017-06-14 QUALCOMM Incorporated Non-frequency translating repeater with detection and media access control
KR20070026558A (en) 2004-06-03 2007-03-08 위데피, 인코포레이티드 Frequency translating repeater with low cost high performance local oscillator architecture
CN100345423C (en) * 2004-12-31 2007-10-24 华为技术有限公司 Multiplex section shared loop protecting method
US8059727B2 (en) 2005-01-28 2011-11-15 Qualcomm Incorporated Physical layer repeater configuration for increasing MIMO performance
US8559379B2 (en) 2006-09-21 2013-10-15 Qualcomm Incorporated Method and apparatus for mitigating oscillation between repeaters
WO2008057290A1 (en) 2006-10-26 2008-05-15 Qualcomm Incorporated Repeater techniques for multiple input multiple output utilizing beam formers
JP4866942B2 (en) * 2009-07-09 2012-02-01 富士通テレコムネットワークス株式会社 Transmission device, transmission control method, and OSC processing device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539655A (en) * 1982-03-16 1985-09-03 Phoenix Digital Corporation Microcomputer based distributed control network
US4538264A (en) * 1983-02-14 1985-08-27 Prime Computer, Inc. Self-repairing ring communications network
EP0290933B1 (en) * 1987-05-14 1991-10-02 Siemens Aktiengesellschaft Method for initiating the configuration after the interruption of at least two parallel ring networks
US4835763A (en) * 1988-02-04 1989-05-30 Bell Communications Research, Inc. Survivable ring network
US5218604A (en) * 1990-08-31 1993-06-08 Bell Communications Research, Inc. Dual-hubbed arrangement to provide a protected ring interconnection
US5187706A (en) * 1990-10-30 1993-02-16 At&T Bell Laboratories Dual access rings for communications networks
US5179548A (en) * 1991-06-27 1993-01-12 Bell Communications Research, Inc. Self-healing bidirectional logical-ring network using crossconnects

Also Published As

Publication number Publication date
JP3195465B2 (en) 2001-08-06
DE69326382T2 (en) 2000-05-11
US5341364A (en) 1994-08-23
EP0573211A2 (en) 1993-12-08
EP0573211B1 (en) 1999-09-15
JPH0637779A (en) 1994-02-10
CA2094642C (en) 1999-06-15
DE69326382D1 (en) 1999-10-21
EP0573211A3 (en) 1995-05-24

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