WO2006096315A3 - Methods and devices for improving the multiple spanning tree protocol - Google Patents

Methods and devices for improving the multiple spanning tree protocol Download PDF

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Publication number
WO2006096315A3
WO2006096315A3 PCT/US2006/005982 US2006005982W WO2006096315A3 WO 2006096315 A3 WO2006096315 A3 WO 2006096315A3 US 2006005982 W US2006005982 W US 2006005982W WO 2006096315 A3 WO2006096315 A3 WO 2006096315A3
Authority
WO
WIPO (PCT)
Prior art keywords
spanning tree
methods
improving
devices
preferred implementations
Prior art date
Application number
PCT/US2006/005982
Other languages
French (fr)
Other versions
WO2006096315A2 (en
Inventor
Norman Finn
Original Assignee
Cisco Tech Inc
Norman Finn
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 Cisco Tech Inc, Norman Finn filed Critical Cisco Tech Inc
Priority to JP2007558055A priority Critical patent/JP5028282B2/en
Priority to CN2006800040642A priority patent/CN101558605B/en
Priority to EP06735576.8A priority patent/EP1854249B1/en
Publication of WO2006096315A2 publication Critical patent/WO2006096315A2/en
Priority to IL185528A priority patent/IL185528A/en
Publication of WO2006096315A3 publication Critical patent/WO2006096315A3/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]
    • H04L12/46—Interconnection of networks
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/462—LAN interconnection over a bridge based backbone
    • 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]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • 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]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/4645—Details on frame tagging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/16—Multipoint routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/48—Routing tree calculation

Abstract

The present invention provides improved unicast routing, multicast routing and unicast load sharing as compared with conventional methods. Preferred implementations of the invention provide improvements to IEEE 802.1Q. According to preferred aspects of the invention, each bridge is the root of its own multiple spanning tree instance ('MSTI'). Preferred implementations of the invention require no learning of media access control ('MAC') addresses on the backbone of a network. Some methods of the invention can resolve spanning tree asymmetries. Preferred implementations of the invention require a very low computational load for control protocols.
PCT/US2006/005982 2005-03-03 2006-02-22 Methods and devices for improving the multiple spanning tree protocol WO2006096315A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007558055A JP5028282B2 (en) 2005-03-03 2006-02-22 Method and apparatus for improving multiple spanning tree protocol
CN2006800040642A CN101558605B (en) 2005-03-03 2006-02-22 Methods and devices for improving the multiple spanning tree protocol
EP06735576.8A EP1854249B1 (en) 2005-03-03 2006-02-22 Methods and devices for improving the multiple spanning tree protocol
IL185528A IL185528A (en) 2005-03-03 2007-08-27 Methods and devices for improving the multiple spanning tree protocol

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US65880405P 2005-03-03 2005-03-03
US60/658,804 2005-03-03
US66127905P 2005-03-11 2005-03-11
US60/661,279 2005-03-11
US11/182,564 US7889681B2 (en) 2005-03-03 2005-07-14 Methods and devices for improving the multiple spanning tree protocol
US11/182,564 2005-07-14

Publications (2)

Publication Number Publication Date
WO2006096315A2 WO2006096315A2 (en) 2006-09-14
WO2006096315A3 true WO2006096315A3 (en) 2009-05-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/005982 WO2006096315A2 (en) 2005-03-03 2006-02-22 Methods and devices for improving the multiple spanning tree protocol

Country Status (6)

Country Link
US (1) US7889681B2 (en)
EP (1) EP1854249B1 (en)
JP (1) JP5028282B2 (en)
CN (1) CN101558605B (en)
IL (1) IL185528A (en)
WO (1) WO2006096315A2 (en)

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Also Published As

Publication number Publication date
IL185528A (en) 2012-05-31
EP1854249A4 (en) 2015-01-28
IL185528A0 (en) 2008-01-06
US20060198323A1 (en) 2006-09-07
JP2008532420A (en) 2008-08-14
EP1854249A2 (en) 2007-11-14
JP5028282B2 (en) 2012-09-19
US7889681B2 (en) 2011-02-15
WO2006096315A2 (en) 2006-09-14
EP1854249B1 (en) 2019-11-06
CN101558605B (en) 2013-02-13
CN101558605A (en) 2009-10-14

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