WO2008005168A3 - Method and apparatus for identifying a fault in a communications link - Google Patents

Method and apparatus for identifying a fault in a communications link Download PDF

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Publication number
WO2008005168A3
WO2008005168A3 PCT/US2007/013992 US2007013992W WO2008005168A3 WO 2008005168 A3 WO2008005168 A3 WO 2008005168A3 US 2007013992 W US2007013992 W US 2007013992W WO 2008005168 A3 WO2008005168 A3 WO 2008005168A3
Authority
WO
WIPO (PCT)
Prior art keywords
link
network
receiver side
network node
loss
Prior art date
Application number
PCT/US2007/013992
Other languages
French (fr)
Other versions
WO2008005168A2 (en
Inventor
Mark W Cole
Nurettin Bal
Richard S Lopez
Original Assignee
Tellabs Petaluma Inc
Mark W Cole
Nurettin Bal
Richard S Lopez
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 Tellabs Petaluma Inc, Mark W Cole, Nurettin Bal, Richard S Lopez filed Critical Tellabs Petaluma Inc
Publication of WO2008005168A2 publication Critical patent/WO2008005168A2/en
Publication of WO2008005168A3 publication Critical patent/WO2008005168A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0062—Provisions for network management
    • H04Q3/0075—Fault management techniques
    • H04Q3/0079—Fault management techniques involving restoration of networks, e.g. disaster recovery, self-healing networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/06—Generation of reports
    • H04L43/065—Generation of reports related to network devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Small-Scale Networks (AREA)

Abstract

In optical Ethernet networks, receiver side link loss is not known on a transmitter side network element, and a transmitter at a receiver side network element does not know of the receiver side link loss without special, very expensive, optical transmitters or a Gigabit Media Independent Interface (GMII). Example embodiments of the present invention can accomplish informing a network node on the transmit side of a network link by disabling communications from a network node on a receive side of the network link to the network node on the transmit side of the communications link. The network node on the transmit side of the communications link detects the receiver side loss through this indirect technique and works within existing protocols of network nodes. Example embodiments can work on all optical Ethernet interfaces regardless of speed and is less expensive than employing optical transmitters designed to detect receiver side link loss.
PCT/US2007/013992 2006-06-30 2007-06-14 Method and apparatus for identifying a fault in a communications link WO2008005168A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/479,129 US20080002569A1 (en) 2006-06-30 2006-06-30 Method and apparatus for identifying a fault in a communications link
US11/479,129 2006-06-30

Publications (2)

Publication Number Publication Date
WO2008005168A2 WO2008005168A2 (en) 2008-01-10
WO2008005168A3 true WO2008005168A3 (en) 2008-02-21

Family

ID=38770159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/013992 WO2008005168A2 (en) 2006-06-30 2007-06-14 Method and apparatus for identifying a fault in a communications link

Country Status (2)

Country Link
US (1) US20080002569A1 (en)
WO (1) WO2008005168A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080037418A1 (en) * 2006-08-10 2008-02-14 Tellabs Petaluma, Inc. Method, system, apparatus, and program to link aggregate over independent redundant switches
US7953016B2 (en) * 2008-03-03 2011-05-31 Nortel Networks Limited Method and system for telecommunication apparatus fast fault notification
US8155057B2 (en) * 2009-01-23 2012-04-10 Mitac Technology Corp. Wireless local network reconnecting system and method
US8248954B2 (en) * 2009-08-31 2012-08-21 Hubbell Incorporated System and method for enhancement of Ethernet link loss forwarding
JP6201835B2 (en) * 2014-03-14 2017-09-27 ソニー株式会社 Information processing apparatus, information processing method, and computer program
WO2023076482A1 (en) * 2021-10-28 2023-05-04 RiskLens, Inc. Method and apparatus for determining effectiveness of cybersecurity risk controls
CN114006656B (en) * 2021-10-29 2023-03-14 深圳市光网世纪科技有限公司 Method for reporting fault of optical fiber communication link

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5276440A (en) * 1989-02-16 1994-01-04 International Business Machines Corporation Network device information exchange
US5781318A (en) * 1995-08-07 1998-07-14 Fitel Photomatrix Circuit and method of testing for silent faults in a bi-directional optical communication system
EP1523114A2 (en) * 2003-10-07 2005-04-13 Pioneer Corporation Optical transmission system
JP2006157835A (en) * 2004-12-01 2006-06-15 Nec Engineering Ltd Network communication system and method of detecting/notifying fault

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Publication number Priority date Publication date Assignee Title
US3983340A (en) * 1975-01-27 1976-09-28 Lynch Communication Systems, Inc. Automatic span line switch
US6285475B1 (en) * 1995-12-29 2001-09-04 Mci Communications Corporation Method and system for detecting optical faults in a network fiber link
US6262820B1 (en) * 1998-07-15 2001-07-17 Lucent Technologies Inc. Optical transmission system including optical restoration
US6600581B1 (en) * 1999-08-31 2003-07-29 Lucent Technologies Inc. Connection verification in optical cross-connect arrangements
AU5668401A (en) * 2000-05-12 2001-11-26 Takeo Inagaki Optical fiber connector
US6438285B1 (en) * 2000-05-31 2002-08-20 International Business Machines Corporation Facility for intializing a fiber optic data link in one mode of a plurality of modes
US6804463B1 (en) * 2001-03-29 2004-10-12 Cisco Technology, Inc. Connection verification for all-optical cross-connects by signal cross-correlation
US7046928B1 (en) * 2001-09-28 2006-05-16 Cisco Technology, Inc. Link discovery and verification using loss of light
US7092630B2 (en) * 2001-11-16 2006-08-15 Avago Technologies Fiber Ip(Singapore) Ptd. Ltd. Open fiber control for optical transceivers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276440A (en) * 1989-02-16 1994-01-04 International Business Machines Corporation Network device information exchange
US5781318A (en) * 1995-08-07 1998-07-14 Fitel Photomatrix Circuit and method of testing for silent faults in a bi-directional optical communication system
EP1523114A2 (en) * 2003-10-07 2005-04-13 Pioneer Corporation Optical transmission system
JP2006157835A (en) * 2004-12-01 2006-06-15 Nec Engineering Ltd Network communication system and method of detecting/notifying fault

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OHTA H: "STANDARDIZED STATUS ON CARRIER CLASS ETHERNET OAM", IEICE TRANSACTIONS ON COMMUNICATIONS, COMMUNICATIONS SOCIETY, TOKYO, JP, vol. E89B, no. 3, March 2006 (2006-03-01), pages 644 - 650, XP001240928, ISSN: 0916-8516 *

Also Published As

Publication number Publication date
WO2008005168A2 (en) 2008-01-10
US20080002569A1 (en) 2008-01-03

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