IT1252576B - Struttura di rete ottica passiva con elevata insensibilita' ai guasti - Google Patents
Struttura di rete ottica passiva con elevata insensibilita' ai guastiInfo
- 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
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
-
- 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,..).
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 |
PCT/EP1992/002902 WO1993013617A1 (en) | 1991-12-20 | 1992-12-12 | Passive optical network structure with high fault tolerance |
EP93900053A EP0617868B1 (en) | 1991-12-20 | 1992-12-12 | Passive optical network structure with high fault tolerance |
US08/240,761 US5680546A (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 |
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) |
Families Citing this family (16)
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***及其业务保护方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1314935C (en) * | 1987-01-05 | 1993-03-23 | British Telecommunications Public Limited Company | Optical communications network |
GB8727846D0 (en) * | 1987-11-27 | 1987-12-31 | British Telecomm | 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 |
KR970011741B1 (ko) * | 1989-02-17 | 1997-07-15 | 로베르트 보쉬 게에베하 | 네트워크 인터페이스 |
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 |
CA2123414C (en) * | 1991-12-19 | 1999-01-19 | James A. Bears | Fibre optic telephone loop network |
-
1991
- 1991-12-20 IT ITMI913442A patent/IT1252576B/it active IP Right Grant
-
1992
- 1992-12-12 WO PCT/EP1992/002902 patent/WO1993013617A1/en active IP Right Grant
- 1992-12-12 DE DE69213471T patent/DE69213471T2/de not_active Expired - Fee Related
- 1992-12-12 US US08/240,761 patent/US5680546A/en not_active Expired - Lifetime
- 1992-12-12 EP EP93900053A patent/EP0617868B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5680546A (en) | 1997-10-21 |
DE69213471D1 (de) | 1996-10-10 |
EP0617868A1 (en) | 1994-10-05 |
WO1993013617A1 (en) | 1993-07-08 |
DE69213471T2 (de) | 1997-02-27 |
ITMI913442A1 (it) | 1993-06-20 |
EP0617868B1 (en) | 1996-09-04 |
ITMI913442A0 (it) | 1991-12-20 |
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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 |