WO2002091681A3 - Protecting ring network data - Google Patents

Protecting ring network data Download PDF

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Publication number
WO2002091681A3
WO2002091681A3 PCT/US2002/013995 US0213995W WO02091681A3 WO 2002091681 A3 WO2002091681 A3 WO 2002091681A3 US 0213995 W US0213995 W US 0213995W WO 02091681 A3 WO02091681 A3 WO 02091681A3
Authority
WO
WIPO (PCT)
Prior art keywords
ring
network data
ring network
protecting ring
data
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.)
Ceased
Application number
PCT/US2002/013995
Other languages
French (fr)
Other versions
WO2002091681A2 (en
Inventor
Charles Lee
Harsh Kapoor
Jonathan Morgan
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.)
Appian Communications Inc
Original Assignee
Appian Communications Inc
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 Appian Communications Inc filed Critical Appian Communications Inc
Priority to EP02734162A priority Critical patent/EP1386452A2/en
Publication of WO2002091681A2 publication Critical patent/WO2002091681A2/en
Anticipated expiration legal-status Critical
Publication of WO2002091681A3 publication Critical patent/WO2002091681A3/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6402—Hybrid switching fabrics

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A ring is configured that has multiple nodes connected by first and second channels. A distributing filter is provided that is configured to direct a first type of data to the first channel in the ring and a second type of data to the second channel in the ring. A fault is detected on at least one the first and second channels in the ring. The distruting filter is adjusted to redirect data in the ring to avoid the fault.
PCT/US2002/013995 2001-05-04 2002-05-02 Protecting ring network data Ceased WO2002091681A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02734162A EP1386452A2 (en) 2001-05-04 2002-05-02 Protecting ring network data

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US28891201P 2001-05-04 2001-05-04
US28890101P 2001-05-04 2001-05-04
US60/288,912 2001-05-04
US60/288,901 2001-05-04

Publications (2)

Publication Number Publication Date
WO2002091681A2 WO2002091681A2 (en) 2002-11-14
WO2002091681A3 true WO2002091681A3 (en) 2003-11-27

Family

ID=26965319

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/013995 Ceased WO2002091681A2 (en) 2001-05-04 2002-05-02 Protecting ring network data

Country Status (2)

Country Link
EP (2) EP1384341A2 (en)
WO (1) WO2002091681A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056364A1 (en) * 2004-11-22 2006-05-24 Bosch Rexroth Aktiengesellschaft Method for operating a network with ring topology

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456206A2 (en) * 1990-05-09 1991-11-13 Fujitsu Limited Fault recovery system of a ring network
EP0548648A2 (en) * 1991-12-12 1993-06-30 Alcatel N.V. 1:N Ring-type signal protection apparatus
US5495472A (en) * 1993-09-20 1996-02-27 Fujitsu Limited Methods and apparatus for utilizing protection paths as additional working paths in switched ring network systems
EP0920153A2 (en) * 1997-11-28 1999-06-02 Nec Corporation Ring network for sharing protection resource by working communications paths
US5974027A (en) * 1994-02-19 1999-10-26 Gpt Limited Telecommunications network including a channel switching protection arrangement
WO2001005083A1 (en) * 1999-07-12 2001-01-18 Koninklijke Kpn N.V. Optical transmission network having a protection configuration
WO2001030006A1 (en) * 1999-10-18 2001-04-26 Nortel Networks Limited Communication network for transmitting and restoring an optical signal
WO2001031821A2 (en) * 1999-10-29 2001-05-03 Alcatel Signalling of failures in telecommunication networks

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456206A2 (en) * 1990-05-09 1991-11-13 Fujitsu Limited Fault recovery system of a ring network
EP0548648A2 (en) * 1991-12-12 1993-06-30 Alcatel N.V. 1:N Ring-type signal protection apparatus
US5495472A (en) * 1993-09-20 1996-02-27 Fujitsu Limited Methods and apparatus for utilizing protection paths as additional working paths in switched ring network systems
US5974027A (en) * 1994-02-19 1999-10-26 Gpt Limited Telecommunications network including a channel switching protection arrangement
EP0920153A2 (en) * 1997-11-28 1999-06-02 Nec Corporation Ring network for sharing protection resource by working communications paths
WO2001005083A1 (en) * 1999-07-12 2001-01-18 Koninklijke Kpn N.V. Optical transmission network having a protection configuration
WO2001030006A1 (en) * 1999-10-18 2001-04-26 Nortel Networks Limited Communication network for transmitting and restoring an optical signal
WO2001031821A2 (en) * 1999-10-29 2001-05-03 Alcatel Signalling of failures in telecommunication networks

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS TYPES AND CHARACTERISTICS OF SDH NETWORK PROTECTION ARCHITECTURES", ITU-T RECOMMENDATION G.841, XX, XX, October 1998 (1998-10-01), pages COMPLETE, XP000955617 *

Also Published As

Publication number Publication date
EP1384341A2 (en) 2004-01-28
EP1386452A2 (en) 2004-02-04
WO2002091681A2 (en) 2002-11-14

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