WO2001067662A3 - Method and system for operation of a resilient closed communication network without a dedicated protection network segment - Google Patents

Method and system for operation of a resilient closed communication network without a dedicated protection network segment Download PDF

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Publication number
WO2001067662A3
WO2001067662A3 PCT/IB2001/001251 IB0101251W WO0167662A3 WO 2001067662 A3 WO2001067662 A3 WO 2001067662A3 IB 0101251 W IB0101251 W IB 0101251W WO 0167662 A3 WO0167662 A3 WO 0167662A3
Authority
WO
WIPO (PCT)
Prior art keywords
distributing station
data packet
network
distributing
identification number
Prior art date
Application number
PCT/IB2001/001251
Other languages
French (fr)
Other versions
WO2001067662A2 (en
Inventor
Noriaki Hashimoto
Original Assignee
Noriaki Hashimoto
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 Noriaki Hashimoto filed Critical Noriaki Hashimoto
Priority to EP01947724A priority Critical patent/EP1266491A2/en
Priority to AU2001269365A priority patent/AU2001269365A1/en
Publication of WO2001067662A2 publication Critical patent/WO2001067662A2/en
Publication of WO2001067662A3 publication Critical patent/WO2001067662A3/en

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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

Abstract

A method and system for operation of a resilient closed communication network without a dedicated protection network segment. The method uses a resilient closed communication network with at least one communication ring. The method inlcudes the steps of receiving a data packet from a first external network at a first distributing station connected to the network, identifying a second distributing station connected to the network from which the data packet is to be forwarded to a second external network, and determining functioning routes from the first distributing station to the second distributing station. The method also includes the steps of selecting an optimal route among the functioning routes and sending the data packet from the first distributing station to the second distributing station using the optimal route. The system includes a first communication ring and at least two distributing stations interconnected by the first communication ring. The distributing station includes means for receiving a data packet from an external network or from another distributing station, means for identifying a destination distributing station for the data packet. It further includes means for appending the identification number for the destination distributing station to the data packet, means for determining fuctioning routes to the destination distributing station, and means for selecting an optimal route among the functioning routes. Finally, it also includes means for forwarding the data packet to the external network after removing the identification number from the data packet if the identification number of the distributing station is the same as the identification number appended to the data packet, or otherwise to a next distributing station based on the optimal route.
PCT/IB2001/001251 2000-03-10 2001-03-08 Method and system for operation of a resilient closed communication network without a dedicated protection network segment WO2001067662A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01947724A EP1266491A2 (en) 2000-03-10 2001-03-08 Method and system for operation of a resilient closed communication network without a dedicated protection network segment
AU2001269365A AU2001269365A1 (en) 2000-03-10 2001-03-08 Method and system for operation of a resilient closed communication network without a dedicated protection network segment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/523,375 US6894978B1 (en) 2000-03-10 2000-03-10 Method and system for operation of a resilient closed communication network without a dedicated protection network segment
US09/523,375 2000-03-10

Publications (2)

Publication Number Publication Date
WO2001067662A2 WO2001067662A2 (en) 2001-09-13
WO2001067662A3 true WO2001067662A3 (en) 2002-06-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/001251 WO2001067662A2 (en) 2000-03-10 2001-03-08 Method and system for operation of a resilient closed communication network without a dedicated protection network segment

Country Status (4)

Country Link
US (2) US6894978B1 (en)
EP (1) EP1266491A2 (en)
AU (1) AU2001269365A1 (en)
WO (1) WO2001067662A2 (en)

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Also Published As

Publication number Publication date
EP1266491A2 (en) 2002-12-18
WO2001067662A2 (en) 2001-09-13
US6894978B1 (en) 2005-05-17
AU2001269365A1 (en) 2001-09-17
US20040190455A1 (en) 2004-09-30

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