GB2343085B - Loop detection - Google Patents

Loop detection

Info

Publication number
GB2343085B
GB2343085B GB9930819A GB9930819A GB2343085B GB 2343085 B GB2343085 B GB 2343085B GB 9930819 A GB9930819 A GB 9930819A GB 9930819 A GB9930819 A GB 9930819A GB 2343085 B GB2343085 B GB 2343085B
Authority
GB
United Kingdom
Prior art keywords
loop detection
loop
detection
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9930819A
Other versions
GB9930819D0 (en
GB2343085A (en
GB2343085A8 (en
Inventor
Gert Oester
Joergen Axell
G Rd Goeran H
Loa Andersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB9930819D0 publication Critical patent/GB9930819D0/en
Publication of GB2343085A publication Critical patent/GB2343085A/en
Publication of GB2343085A8 publication Critical patent/GB2343085A8/en
Application granted granted Critical
Publication of GB2343085B publication Critical patent/GB2343085B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5625—Operations, administration and maintenance [OAM]
    • H04L2012/5627—Fault tolerance and recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5628—Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
GB9930819A 1997-07-04 1998-07-03 Loop detection Expired - Fee Related GB2343085B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702604A SE512055C2 (en) 1997-07-04 1997-07-04 Detection of loop
PCT/SE1998/001314 WO1999002009A2 (en) 1997-07-04 1998-07-03 Loop detection

Publications (4)

Publication Number Publication Date
GB9930819D0 GB9930819D0 (en) 2000-02-16
GB2343085A GB2343085A (en) 2000-04-26
GB2343085A8 GB2343085A8 (en) 2000-05-18
GB2343085B true GB2343085B (en) 2002-07-31

Family

ID=20407656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9930819A Expired - Fee Related GB2343085B (en) 1997-07-04 1998-07-03 Loop detection

Country Status (7)

Country Link
JP (1) JP2002510454A (en)
CN (1) CN1132493C (en)
AU (1) AU8251698A (en)
CA (1) CA2294807A1 (en)
GB (1) GB2343085B (en)
SE (1) SE512055C2 (en)
WO (1) WO1999002009A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100344116C (en) * 2004-04-20 2007-10-17 北京润光泰力科技发展有限公司 A method and apparatus for Ethernet converter line side loop back detection
CN1734991B (en) * 2004-08-13 2010-08-18 中兴通讯股份有限公司 Method for detecting multi-service transmission platform device service loopback
US7706258B2 (en) * 2004-12-22 2010-04-27 Alcatel Lucent System and method for detecting loops in a customer-provider bridge domain
CN100403705C (en) * 2006-03-30 2008-07-16 华为技术有限公司 Loopback detecting method for PPP package interface
TWI469568B (en) * 2010-04-22 2015-01-11 Hon Hai Prec Ind Co Ltd Switching device and loopback detecting method thereof
CN102055525B (en) * 2010-12-17 2016-03-16 北京格林伟迪科技股份有限公司 loop detection and control method
CN103220218B (en) 2013-04-28 2016-03-30 杭州华三通信技术有限公司 The method and apparatus of anti-loops in vertical stack networking

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014262A (en) * 1990-01-02 1991-05-07 At&T Bell Laboratories Apparatus and method for detecting and eliminating call looping in a node-by-node routing network
EP0555926A1 (en) * 1992-02-14 1993-08-18 Koninklijke KPN N.V. Method and means for detecting a routing loop in a telecommunication network
WO1995032571A1 (en) * 1994-05-24 1995-11-30 Nokia Telecommunications Oy Method for preventing circular routing in a telecommunication network
EP0777401A1 (en) * 1995-11-29 1997-06-04 AT&T Corp. Method for controlling a loopback test between ATM points

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014262A (en) * 1990-01-02 1991-05-07 At&T Bell Laboratories Apparatus and method for detecting and eliminating call looping in a node-by-node routing network
EP0555926A1 (en) * 1992-02-14 1993-08-18 Koninklijke KPN N.V. Method and means for detecting a routing loop in a telecommunication network
WO1995032571A1 (en) * 1994-05-24 1995-11-30 Nokia Telecommunications Oy Method for preventing circular routing in a telecommunication network
EP0777401A1 (en) * 1995-11-29 1997-06-04 AT&T Corp. Method for controlling a loopback test between ATM points

Also Published As

Publication number Publication date
WO1999002009A2 (en) 1999-01-14
GB9930819D0 (en) 2000-02-16
GB2343085A (en) 2000-04-26
JP2002510454A (en) 2002-04-02
CN1132493C (en) 2003-12-24
CA2294807A1 (en) 1999-01-14
SE9702604D0 (en) 1997-07-04
WO1999002009A3 (en) 1999-05-06
CN1269955A (en) 2000-10-11
SE512055C2 (en) 2000-01-17
AU8251698A (en) 1999-01-25
SE9702604L (en) 1999-01-05
GB2343085A8 (en) 2000-05-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060703