FR2769438B1 - METHOD FOR SWITCHING BETWEEN REDUNDANT ROUTES IN A COMMUNICATION SYSTEM WITHOUT REDUNDANT TRANSMISSION LINES - Google Patents

METHOD FOR SWITCHING BETWEEN REDUNDANT ROUTES IN A COMMUNICATION SYSTEM WITHOUT REDUNDANT TRANSMISSION LINES

Info

Publication number
FR2769438B1
FR2769438B1 FR9804907A FR9804907A FR2769438B1 FR 2769438 B1 FR2769438 B1 FR 2769438B1 FR 9804907 A FR9804907 A FR 9804907A FR 9804907 A FR9804907 A FR 9804907A FR 2769438 B1 FR2769438 B1 FR 2769438B1
Authority
FR
France
Prior art keywords
redundant
switching
communication system
transmission lines
routes
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
FR9804907A
Other languages
French (fr)
Other versions
FR2769438A1 (en
Inventor
Hirofumi Araki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 US09/041,759 external-priority patent/US6256291B1/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of FR2769438A1 publication Critical patent/FR2769438A1/en
Application granted granted Critical
Publication of FR2769438B1 publication Critical patent/FR2769438B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • 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
FR9804907A 1997-10-07 1998-04-20 METHOD FOR SWITCHING BETWEEN REDUNDANT ROUTES IN A COMMUNICATION SYSTEM WITHOUT REDUNDANT TRANSMISSION LINES Expired - Fee Related FR2769438B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9273996A JPH11112388A (en) 1997-10-07 1997-10-07 Redundant system switching method of communication system having no redundant transmission line
US09/041,759 US6256291B1 (en) 1967-04-27 1998-03-13 Method of switching between redundant routes in communication system devoid of redundant transmission

Publications (2)

Publication Number Publication Date
FR2769438A1 FR2769438A1 (en) 1999-04-09
FR2769438B1 true FR2769438B1 (en) 2001-11-02

Family

ID=26550850

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9804907A Expired - Fee Related FR2769438B1 (en) 1997-10-07 1998-04-20 METHOD FOR SWITCHING BETWEEN REDUNDANT ROUTES IN A COMMUNICATION SYSTEM WITHOUT REDUNDANT TRANSMISSION LINES

Country Status (2)

Country Link
JP (1) JPH11112388A (en)
FR (1) FR2769438B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004051897A1 (en) 2002-11-29 2004-06-17 Fujitsu Limited Packet transmission system and end office unit
JP4096183B2 (en) 2003-02-27 2008-06-04 日本電気株式会社 Alarm transfer method and wide area Ethernet network
CN1642042A (en) * 2004-01-15 2005-07-20 华为技术有限公司 Optical communication system, sub-rate multiplex demultiplex and its method
JP2007159063A (en) * 2005-12-08 2007-06-21 Nec Corp Fault processing apparatus for network controller, packet transfer system and method on occurrence of link fault
JP2017118154A (en) * 2014-03-25 2017-06-29 日本電気株式会社 Communication device, communication system, redundant configuration switching method, and program

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3376144B2 (en) * 1994-12-28 2003-02-10 日本電気株式会社 Optical network device and optical transmission system
FR2749725B1 (en) * 1996-06-06 1998-07-31 Alcatel Submarcom TERMINAL FOR A SECURE BIDIRECTIONAL LINK CONDUCTING MULTIPLEXED DATA ACCORDING TO THE SYNCHRONOUS DIGITAL HIERARCHY

Also Published As

Publication number Publication date
JPH11112388A (en) 1999-04-23
FR2769438A1 (en) 1999-04-09

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20051230