SE9502310D0 - Self-healing network - Google Patents

Self-healing network

Info

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
Application number
SE9502310A
Other languages
Swedish (sv)
Other versions
SE9502310L (en
SE506713C2 (en
Inventor
Paolo Andreozzi
Stefano Merli
Renato Norbiato
Francesco Testa
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9502310A priority Critical patent/SE506713C2/en
Publication of SE9502310D0 publication Critical patent/SE9502310D0/en
Priority to AU63226/96A priority patent/AU6322696A/en
Priority to ES96922318T priority patent/ES2239333T3/en
Priority to DE69634611T priority patent/DE69634611T2/en
Priority to US08/981,782 priority patent/US6088141A/en
Priority to PCT/SE1996/000794 priority patent/WO1997001907A1/en
Priority to EP96922318A priority patent/EP0878079B1/en
Priority to BR9608792A priority patent/BR9608792A/en
Priority to JP9504347A priority patent/JPH11508427A/en
Priority to CN96195023A priority patent/CN1094007C/en
Publication of SE9502310L publication Critical patent/SE9502310L/en
Priority to MXPA/A/1997/010099A priority patent/MXPA97010099A/en
Publication of SE506713C2 publication Critical patent/SE506713C2/en

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.
SE9502310A 1995-06-26 1995-06-26 Self healing communication node network with main and protection rings SE506713C2 (en)

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)

Also Published As

Publication number Publication date
SE9502310L (en) 1997-03-06
SE506713C2 (en) 1998-02-02

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Legal Events

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