EP1417497A4 - Virtual line switched ring (vlsr) connection state distribution scheme - Google Patents

Virtual line switched ring (vlsr) connection state distribution scheme

Info

Publication number
EP1417497A4
EP1417497A4 EP02747005A EP02747005A EP1417497A4 EP 1417497 A4 EP1417497 A4 EP 1417497A4 EP 02747005 A EP02747005 A EP 02747005A EP 02747005 A EP02747005 A EP 02747005A EP 1417497 A4 EP1417497 A4 EP 1417497A4
Authority
EP
European Patent Office
Prior art keywords
vlsr
connection state
virtual line
distribution scheme
state distribution
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.)
Withdrawn
Application number
EP02747005A
Other languages
German (de)
French (fr)
Other versions
EP1417497A1 (en
Inventor
Jeffrey Gullicksen
William Kish
Theodore E Tedijanto
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.)
Ciena Corp
Original Assignee
Ciena Corp
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
Priority claimed from US09/904,623 external-priority patent/US6751189B1/en
Application filed by Ciena Corp filed Critical Ciena Corp
Publication of EP1417497A1 publication Critical patent/EP1417497A1/en
Publication of EP1417497A4 publication Critical patent/EP1417497A4/en
Withdrawn legal-status Critical Current

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
    • 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]
EP02747005A 2001-07-13 2002-07-15 Virtual line switched ring (vlsr) connection state distribution scheme Withdrawn EP1417497A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US904623 2001-07-13
US09/904,623 US6751189B1 (en) 1999-10-19 2001-07-13 Virtual line switched ring (VLSR) connection state distribution scheme
PCT/US2002/022215 WO2003007005A1 (en) 2001-07-13 2002-07-15 Virtual line switched ring (vlsr) connection state distribution scheme

Publications (2)

Publication Number Publication Date
EP1417497A1 EP1417497A1 (en) 2004-05-12
EP1417497A4 true EP1417497A4 (en) 2006-08-30

Family

ID=25419462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02747005A Withdrawn EP1417497A4 (en) 2001-07-13 2002-07-15 Virtual line switched ring (vlsr) connection state distribution scheme

Country Status (2)

Country Link
EP (1) EP1417497A4 (en)
WO (1) WO2003007005A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7355985B2 (en) * 2004-03-22 2008-04-08 Futurewei Technologies, Inc. Automatic update of squelch tables for optical network applications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645905A2 (en) * 1993-09-24 1995-03-29 Nec Corporation Sonet Ring subnetwork management method
EP0804001A2 (en) * 1996-04-23 1997-10-29 Hitachi, Ltd. Self-healing network, method for transmission line switching thereof, and transmission equipment thereof
US5732086A (en) * 1995-09-21 1998-03-24 International Business Machines Corporation System and method for determining the topology of a reconfigurable multi-nodal network
WO2000052890A1 (en) * 1999-03-01 2000-09-08 Ciena Corporation Routing and signaling in a sonet network
US6122753A (en) * 1997-04-09 2000-09-19 Nec Corporation Fault recovery system and transmission path autonomic switching system
JP2001186159A (en) * 1999-12-24 2001-07-06 Fujitsu Ltd Ring transmission system and its squelch method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355362A (en) * 1992-10-26 1994-10-11 Nec America, Inc. Digital loop carrier system
JP3259126B2 (en) * 1995-09-26 2002-02-25 富士通株式会社 Ring transmission system and squelch method for the system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645905A2 (en) * 1993-09-24 1995-03-29 Nec Corporation Sonet Ring subnetwork management method
US5732086A (en) * 1995-09-21 1998-03-24 International Business Machines Corporation System and method for determining the topology of a reconfigurable multi-nodal network
EP0804001A2 (en) * 1996-04-23 1997-10-29 Hitachi, Ltd. Self-healing network, method for transmission line switching thereof, and transmission equipment thereof
US6122753A (en) * 1997-04-09 2000-09-19 Nec Corporation Fault recovery system and transmission path autonomic switching system
WO2000052890A1 (en) * 1999-03-01 2000-09-08 Ciena Corporation Routing and signaling in a sonet network
JP2001186159A (en) * 1999-12-24 2001-07-06 Fujitsu Ltd Ring transmission system and its squelch method
US20010015979A1 (en) * 1999-12-24 2001-08-23 Fujitsu Limited Ring transmission system and method of controlling squelch in ring transmission system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03007005A1 *

Also Published As

Publication number Publication date
WO2003007005A1 (en) 2003-01-23
EP1417497A1 (en) 2004-05-12

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Legal Events

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Effective date: 20060728

RIC1 Information provided on ipc code assigned before grant

Ipc: H04Q 11/00 20060101ALI20060725BHEP

Ipc: H04L 12/00 20060101ALI20060725BHEP

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