WO2001031821A3 - Signalling of failures in telecommunication networks - Google Patents

Signalling of failures in telecommunication networks Download PDF

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Publication number
WO2001031821A3
WO2001031821A3 PCT/EP2000/011244 EP0011244W WO0131821A3 WO 2001031821 A3 WO2001031821 A3 WO 2001031821A3 EP 0011244 W EP0011244 W EP 0011244W WO 0131821 A3 WO0131821 A3 WO 0131821A3
Authority
WO
WIPO (PCT)
Prior art keywords
protecting
signalling
failures
telecommunications networks
work
Prior art date
Application number
PCT/EP2000/011244
Other languages
French (fr)
Other versions
WO2001031821A2 (en
Inventor
Lucia Bianchi
Ernesto Colizzi
Gaetano Valvo
Original Assignee
Cit Alcatel
Lucia Bianchi
Ernesto Colizzi
Gaetano Valvo
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 Cit Alcatel, Lucia Bianchi, Ernesto Colizzi, Gaetano Valvo filed Critical Cit Alcatel
Priority to DE60018779T priority Critical patent/DE60018779T2/en
Priority to EP00990600A priority patent/EP1224759B1/en
Priority to AT00990600T priority patent/ATE291301T1/en
Publication of WO2001031821A2 publication Critical patent/WO2001031821A2/en
Publication of WO2001031821A3 publication Critical patent/WO2001031821A3/en

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmitters (AREA)
  • Luminescent Compositions (AREA)
  • Telephonic Communication Services (AREA)

Abstract

A method for signalling failures in telecommunications networks, in particular MS-SPRING optic fiber telecommunications networks, comprising nodes connected through spans, that provides for protecting the information traffic on said telecommunications networks by defining a work channel and a protecting channel and switch operations between said work and protecting channels, said switch being driven through protection words exchanged among the nodes of said telecommunications network. According to the invention it is provided that the node (NE1) of the telecommunication network that receives a failure signal (SF) on an incoming span (SP) and is in a Lockout Of Work Channel (LKW) state sends modified protection words (PRW) in opposite direction.
PCT/EP2000/011244 1999-10-29 2000-10-17 Signalling of failures in telecommunication networks WO2001031821A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60018779T DE60018779T2 (en) 1999-10-29 2000-10-17 SIGNALING FAULTS IN NEWS TRANSMISSION NETWORKS
EP00990600A EP1224759B1 (en) 1999-10-29 2000-10-17 Signalling of failures in telecommunication networks
AT00990600T ATE291301T1 (en) 1999-10-29 2000-10-17 SIGNALING OF ERRORS IN MESSAGE TRANSMISSION NETWORKS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999TO000945A IT1308858B1 (en) 1999-10-29 1999-10-29 FAULT REPORTING METHOD IN TELECOMMUNICATIONS NETWORKS.
ITTO99A000945 1999-10-29

Publications (2)

Publication Number Publication Date
WO2001031821A2 WO2001031821A2 (en) 2001-05-03
WO2001031821A3 true WO2001031821A3 (en) 2001-10-25

Family

ID=11418186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/011244 WO2001031821A2 (en) 1999-10-29 2000-10-17 Signalling of failures in telecommunication networks

Country Status (6)

Country Link
EP (1) EP1224759B1 (en)
AT (1) ATE291301T1 (en)
DE (1) DE60018779T2 (en)
ES (1) ES2236036T3 (en)
IT (1) IT1308858B1 (en)
WO (1) WO2001031821A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1384341A2 (en) * 2001-05-04 2004-01-28 Appian Communications, Inc. Communicating data between tdm and packet based networks
US7158478B1 (en) * 2001-07-11 2007-01-02 Alcatel Method and apparatus for signalling in a shared protection ring architecture
CN101790110B (en) * 2009-01-22 2012-12-19 中兴通讯股份有限公司 Device and method for coordinating and recovering automatic protection switching operation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0936824A (en) * 1995-07-21 1997-02-07 Fujitsu Ltd Optical transmission system and method for switching and controlling transmission line
EP0804001A2 (en) * 1996-04-23 1997-10-29 Hitachi, Ltd. Self-healing network, method for transmission line switching thereof, and transmission equipment thereof
EP0818940A2 (en) * 1996-07-11 1998-01-14 Nortel Networks Corporation Self-healing line switched ring for ATM traffic
US5870382A (en) * 1995-09-04 1999-02-09 Fujitsu Limited Automatic protection switching system for ATM exchange network
EP0928083A2 (en) * 1997-12-31 1999-07-07 Alcatel Device and method for detecting and/or measuring the misconnection time in telecommunication networks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0936824A (en) * 1995-07-21 1997-02-07 Fujitsu Ltd Optical transmission system and method for switching and controlling transmission line
US5978354A (en) * 1995-07-21 1999-11-02 Fujitsu Limited Optical transmission system and transmission line switching control method
US5870382A (en) * 1995-09-04 1999-02-09 Fujitsu Limited Automatic protection switching system for ATM exchange network
EP0804001A2 (en) * 1996-04-23 1997-10-29 Hitachi, Ltd. Self-healing network, method for transmission line switching thereof, and transmission equipment thereof
EP0818940A2 (en) * 1996-07-11 1998-01-14 Nortel Networks Corporation Self-healing line switched ring for ATM traffic
EP0928083A2 (en) * 1997-12-31 1999-07-07 Alcatel Device and method for detecting and/or measuring the misconnection time in telecommunication networks

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ITU-T RECOMMENDATION G.841, October 1998 (1998-10-01), XP002166029 *

Also Published As

Publication number Publication date
ITTO990945A0 (en) 1999-10-29
EP1224759B1 (en) 2005-03-16
DE60018779T2 (en) 2006-04-06
EP1224759A2 (en) 2002-07-24
IT1308858B1 (en) 2002-01-11
ES2236036T3 (en) 2005-07-16
ITTO990945A1 (en) 2001-04-29
ATE291301T1 (en) 2005-04-15
WO2001031821A2 (en) 2001-05-03
DE60018779D1 (en) 2005-04-21

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