IT1252576B - Struttura di rete ottica passiva con elevata insensibilita' ai guasti - Google Patents

Struttura di rete ottica passiva con elevata insensibilita' ai guasti

Info

Publication number
IT1252576B
IT1252576B ITMI913442A ITMI913442A IT1252576B IT 1252576 B IT1252576 B IT 1252576B IT MI913442 A ITMI913442 A IT MI913442A IT MI913442 A ITMI913442 A IT MI913442A IT 1252576 B IT1252576 B IT 1252576B
Authority
IT
Italy
Prior art keywords
nodes
passive optical
insensitivity
network structure
optical network
Prior art date
Application number
ITMI913442A
Other languages
English (en)
Inventor
Guido Chiaretti
Mario Gerla
Original Assignee
Italtel Spa
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 Italtel Spa filed Critical Italtel Spa
Priority to ITMI913442A priority Critical patent/IT1252576B/it
Publication of ITMI913442A0 publication Critical patent/ITMI913442A0/it
Priority to US08/240,761 priority patent/US5680546A/en
Priority to PCT/EP1992/002902 priority patent/WO1993013617A1/en
Priority to DE69213471T priority patent/DE69213471T2/de
Priority to EP93900053A priority patent/EP0617868B1/en
Publication of ITMI913442A1 publication Critical patent/ITMI913442A1/it
Application granted granted Critical
Publication of IT1252576B publication Critical patent/IT1252576B/it

Links

Classifications

    • 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
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/272—Star-type networks or tree-type networks
    • 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
    • H04J14/0282—WDM tree architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/44—Star or tree networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/48—Routing tree calculation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Topologia fault tolerant per reti ottiche passive essenzialmente basata su di una configurazione ad albero con punti di diramazione o nodi (16, 17) costituiti da ripartitori passivi di potenza ottica, in cui ciascuno del nodi (16, 17) di un livello è collegato mediante due o più rami (Rd, Rs) ad altrettanti nodi (16, 17) del livello immediatamente inferiore e, tra ciascuna coppia di nodi di uno stesso livello, è previsto un collegamento supplementare (S1, S2,..).
ITMI913442A 1991-12-20 1991-12-20 Struttura di rete ottica passiva con elevata insensibilita' ai guasti IT1252576B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITMI913442A IT1252576B (it) 1991-12-20 1991-12-20 Struttura di rete ottica passiva con elevata insensibilita' ai guasti
US08/240,761 US5680546A (en) 1991-12-20 1992-12-12 Passive optical network structure with high fault tolerance
PCT/EP1992/002902 WO1993013617A1 (en) 1991-12-20 1992-12-12 Passive optical network structure with high fault tolerance
DE69213471T DE69213471T2 (de) 1991-12-20 1992-12-12 Passive optische netzwerkstruktur mit hoher fehlertoleranz
EP93900053A EP0617868B1 (en) 1991-12-20 1992-12-12 Passive optical network structure with high fault tolerance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI913442A IT1252576B (it) 1991-12-20 1991-12-20 Struttura di rete ottica passiva con elevata insensibilita' ai guasti

Publications (3)

Publication Number Publication Date
ITMI913442A0 ITMI913442A0 (it) 1991-12-20
ITMI913442A1 ITMI913442A1 (it) 1993-06-20
IT1252576B true IT1252576B (it) 1995-06-19

Family

ID=11361404

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI913442A IT1252576B (it) 1991-12-20 1991-12-20 Struttura di rete ottica passiva con elevata insensibilita' ai guasti

Country Status (5)

Country Link
US (1) US5680546A (it)
EP (1) EP0617868B1 (it)
DE (1) DE69213471T2 (it)
IT (1) IT1252576B (it)
WO (1) WO1993013617A1 (it)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5539564A (en) * 1993-09-22 1996-07-23 Nippon Telegraph And Telephone Corporation Point-to-multipoint optical transmission system
US5995485A (en) * 1996-11-26 1999-11-30 Mci Communications Corporation Method and apparatus for isolating network failures by correlating paths issuing alarms with failure spans
US6047331A (en) * 1997-02-19 2000-04-04 Massachusetts Institute Of Technology Method and apparatus for automatic protection switching
JPH11112430A (ja) * 1997-10-08 1999-04-23 Fujitsu Ltd 光加入者ネットワークシステム及び光加入者ネットワークシステムにおける障害監視方法
DE19800145A1 (de) * 1998-01-05 1999-07-08 Nokia Telecommunications Oy Verfaren zur Erweiterung eines bestehenden Transportnetzes für die Telekommunikation
US6614781B1 (en) 1998-11-20 2003-09-02 Level 3 Communications, Inc. Voice over data telecommunications network architecture
US6498667B1 (en) 1999-09-10 2002-12-24 Quantum Bridge Communications, Inc. Method and system for packet transmission over passive optical network
US6122335A (en) 1999-10-01 2000-09-19 Quantum Bridge Communications, Inc. Method and apparatus for fast burst mode data recovery
US6592272B1 (en) 1999-10-22 2003-07-15 Quantum Bridge Communications, Inc. Burst mode transmission over multiple optical wavelengths
US6990123B1 (en) 2000-01-24 2006-01-24 Quantum Bridge Communications Inc. Method and apparatus for redundant transmission over TDMA optical networks
US20020110315A1 (en) * 2001-02-15 2002-08-15 Alcatel Usa Sourcing, L.P. Pre-splitter module for conditioning optical signals in an access network
JP2002300626A (ja) * 2001-03-29 2002-10-11 Fujitsu Ltd 伝送路迂回方法，加入者線収容装置及び中継伝送路収容装置
US20020145775A1 (en) * 2001-04-06 2002-10-10 Quantum Bridge Communications, Inc. TDM/WDMA passive optical network
US6766482B1 (en) 2001-10-31 2004-07-20 Extreme Networks Ethernet automatic protection switching
WO2004102903A1 (ja) * 2003-05-14 2004-11-25 Fujitsu Limited 伝送装置
CN1859811B (zh) * 2006-03-15 2011-02-02 华为技术有限公司 一种无源光网络系统及其业务保护方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8727846D0 (en) * 1987-11-27 1987-12-31 British Telecomm Optical communications network
CA1314935C (en) * 1987-01-05 1993-03-23 British Telecommunications Public Limited Company Optical communications network
US4809362A (en) * 1987-03-13 1989-02-28 Center For Innovative Technology Fiber-optic star tree network
GB8903567D0 (en) * 1989-02-16 1989-04-05 British Telecomm An optical network
US5216674A (en) * 1989-02-17 1993-06-01 Robert Bosch Gmbh Method of and device for bringing a network interface out of a sleep mode into a wake-up state
US5068847A (en) * 1989-10-19 1991-11-26 Honeywell Inc. Fiber optic network architecture having data feedback for monitoring communications thereon
FR2654564B1 (fr) * 1989-11-10 1992-01-17 Renault Interface de ligne pour un reseau de transmission d'informations.
JPH0427244A (ja) * 1990-05-22 1992-01-30 Toshiba Corp 広帯域交換ネットワーク
US5353412A (en) * 1990-10-03 1994-10-04 Thinking Machines Corporation Partition control circuit for separately controlling message sending of nodes of tree-shaped routing network to divide the network into a number of partitions
CA2054443C (en) * 1990-10-30 1995-11-07 Kazuo Yamane Switching system of optical transmission lines for protecting from trouble
EP0617876B1 (en) * 1991-12-19 1997-02-12 Nortel Networks Corporation Fibre optic telephone loop network

Also Published As

Publication number Publication date
ITMI913442A1 (it) 1993-06-20
EP0617868B1 (en) 1996-09-04
ITMI913442A0 (it) 1991-12-20
DE69213471T2 (de) 1997-02-27
WO1993013617A1 (en) 1993-07-08
US5680546A (en) 1997-10-21
DE69213471D1 (de) 1996-10-10
EP0617868A1 (en) 1994-10-05

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951221