SE9502310D0 - Self-healing network - Google Patents
Self-healing networkInfo
- Publication number
- SE9502310D0 SE9502310D0 SE9502310A SE9502310A SE9502310D0 SE 9502310 D0 SE9502310 D0 SE 9502310D0 SE 9502310 A SE9502310 A SE 9502310A SE 9502310 A SE9502310 A SE 9502310A SE 9502310 D0 SE9502310 D0 SE 9502310D0
- Authority
- SE
- Sweden
- Prior art keywords
- node
- ring
- network
- pref
- optical
- 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
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- 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
- 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]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
The communication node can be used in an optical communication network (100) with a number of nodes operating on a ring basis. The network pref. has a working ring (112) and a protection ring (114) which can transmit traffic in both directions. The node includes link supervision devices to monitor the power on the input and output fibres. These detect errors or faults causing a break between nodes, using the power measurements. The node also includes an optical switch to redirect traffic onto the protection ring. When a fault has been repaired a network management unit (116) communicates with the node to cause it to restore operations onto the working ring. Pref. the node performs redirections through optical bar and cross switches.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9502310A SE506713C2 (en) | 1995-06-26 | 1995-06-26 | Self healing communication node network with main and protection rings |
CN96195023A CN1094007C (en) | 1995-06-26 | 1996-06-18 | self-healing network |
US08/981,782 US6088141A (en) | 1995-06-26 | 1996-06-18 | Self-healing network |
ES96922318T ES2239333T3 (en) | 1995-06-26 | 1996-06-18 | SELF-REGULATING NETWORK. |
DE69634611T DE69634611T2 (en) | 1995-06-26 | 1996-06-18 | SELF-HEALING NETWORK |
AU63226/96A AU6322696A (en) | 1995-06-26 | 1996-06-18 | Self-healing network |
PCT/SE1996/000794 WO1997001907A1 (en) | 1995-06-26 | 1996-06-18 | Self-healing network |
EP96922318A EP0878079B1 (en) | 1995-06-26 | 1996-06-18 | Self-healing network |
BR9608792A BR9608792A (en) | 1995-06-26 | 1996-06-18 | Communication node and optical addition / reduction network communication system and process for restoring a communication network system |
JP9504347A JPH11508427A (en) | 1995-06-26 | 1996-06-18 | Self-healing net |
MXPA/A/1997/010099A MXPA97010099A (en) | 1995-06-26 | 1997-12-11 | Auto-reparad network |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9502310A SE506713C2 (en) | 1995-06-26 | 1995-06-26 | Self healing communication node network with main and protection rings |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9502310D0 true SE9502310D0 (en) | 1995-06-26 |
SE9502310L SE9502310L (en) | 1997-03-06 |
SE506713C2 SE506713C2 (en) | 1998-02-02 |
Family
ID=20398745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9502310A SE506713C2 (en) | 1995-06-26 | 1995-06-26 | Self healing communication node network with main and protection rings |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE506713C2 (en) |
-
1995
- 1995-06-26 SE SE9502310A patent/SE506713C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9502310L (en) | 1997-03-06 |
SE506713C2 (en) | 1998-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |