WO2002045375A8 - Auto-tunnelling in a heterogenous network - Google Patents

Auto-tunnelling in a heterogenous network

Info

Publication number
WO2002045375A8
WO2002045375A8 PCT/EP2001/014203 EP0114203W WO0245375A8 WO 2002045375 A8 WO2002045375 A8 WO 2002045375A8 EP 0114203 W EP0114203 W EP 0114203W WO 0245375 A8 WO0245375 A8 WO 0245375A8
Authority
WO
WIPO (PCT)
Prior art keywords
routing
network
nodes
tunnelling
auto
Prior art date
Application number
PCT/EP2001/014203
Other languages
French (fr)
Other versions
WO2002045375B1 (en
WO2002045375A2 (en
WO2002045375A3 (en
Inventor
Philip Christian
Paul Fee
Original Assignee
Nortel Networks Ltd
Philip Christian
Paul Fee
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 Nortel Networks Ltd, Philip Christian, Paul Fee filed Critical Nortel Networks Ltd
Priority to CA002436860A priority Critical patent/CA2436860A1/en
Priority to AU2002229610A priority patent/AU2002229610A1/en
Priority to EP01990499A priority patent/EP1342357A2/en
Priority to JP2002546387A priority patent/JP2004515165A/en
Publication of WO2002045375A2 publication Critical patent/WO2002045375A2/en
Publication of WO2002045375A3 publication Critical patent/WO2002045375A3/en
Publication of WO2002045375B1 publication Critical patent/WO2002045375B1/en
Publication of WO2002045375A8 publication Critical patent/WO2002045375A8/en

Links

Classifications

    • 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
    • H04L45/02—Topology update or discovery
    • H04L45/04—Interdomain routing, e.g. hierarchical routing
    • 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
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/52—Multiprotocol routers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols

Landscapes

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

Abstract

The invention relates to auto-tunnelling in a heterogenous network, and more particularly in an IS-IS routing domain. The preferred embodiment provides a routing apparatus that enables network nodes which support incompatible network layer protocols, such as CLNP, IPv4 or IPv6 to be present in a single routing domain, e.g. IS-IS level-1 area or level-2 subdomain. The routing apparatus enables nodes automatically to tunnel one network layer protocol over another as required, provided that all of the nodes in the routing domain support IS-IS or Integrated IS-IS routing protocols. The routing apparatus does not necessarily try to route a data packet to its destination node but rather sends the data packet in a tunnel to a node in the path to the destination node, as appropriate.
PCT/EP2001/014203 2000-12-01 2001-11-29 Auto-tunnelling in a heterogenous network WO2002045375A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002436860A CA2436860A1 (en) 2000-12-01 2001-11-29 Auto-tunnelling in a heterogenous network
AU2002229610A AU2002229610A1 (en) 2000-12-01 2001-11-29 Auto-tunnelling in a heterogenous network
EP01990499A EP1342357A2 (en) 2000-12-01 2001-11-29 Auto-tunnelling in a heterogenous network
JP2002546387A JP2004515165A (en) 2000-12-01 2001-11-29 Automatic tunneling in heterogeneous networks

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US25063000P 2000-12-01 2000-12-01
US60/250,630 2000-12-01
US27605901P 2001-03-15 2001-03-15
US60/276,059 2001-03-15

Publications (4)

Publication Number Publication Date
WO2002045375A2 WO2002045375A2 (en) 2002-06-06
WO2002045375A3 WO2002045375A3 (en) 2002-07-25
WO2002045375B1 WO2002045375B1 (en) 2003-06-26
WO2002045375A8 true WO2002045375A8 (en) 2004-02-26

Family

ID=26941018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/014203 WO2002045375A2 (en) 2000-12-01 2001-11-29 Auto-tunnelling in a heterogenous network

Country Status (5)

Country Link
EP (1) EP1342357A2 (en)
JP (1) JP2004515165A (en)
AU (1) AU2002229610A1 (en)
CA (1) CA2436860A1 (en)
WO (1) WO2002045375A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393609A (en) * 2002-09-24 2004-03-31 Orange Personal Comm Serv Ltd Macro-mobility in a mobile radio communication unit using packet data protocols and tunnelling
CN100409646C (en) * 2003-10-28 2008-08-06 武汉烽火网络有限责任公司 Method and apparatus for implementing different internet protocol data packet forwarding using policy flow
US7586922B2 (en) * 2004-03-12 2009-09-08 Telefonaktiebolaget Lm Ericsson (Publ) Providing higher layer packet/frame boundary information in GRE frames
WO2006052171A1 (en) 2004-11-11 2006-05-18 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for routing packets
JP4330520B2 (en) 2004-12-08 2009-09-16 富士通株式会社 Communication device
US7499445B2 (en) * 2005-03-18 2009-03-03 Cisco Technology, Inc. System and method for routing ISIS traffic through unidirectional links of a computer network
JP2007274284A (en) * 2006-03-31 2007-10-18 Nec Corp Transfer device, transfer method, transfer system and program
US7978728B2 (en) 2007-04-04 2011-07-12 Nokia Corporation Network clustering for improving connection management and re-routing capabilities
US20090097470A1 (en) * 2007-10-12 2009-04-16 Collier David S Methods and systems for communicating data
CN103685012B (en) * 2012-09-26 2017-06-16 中国电信股份有限公司 The determination method and apparatus of forward-path in multiple topology

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251205A (en) * 1990-09-04 1993-10-05 Digital Equipment Corporation Multiple protocol routing

Also Published As

Publication number Publication date
WO2002045375B1 (en) 2003-06-26
AU2002229610A1 (en) 2002-06-11
WO2002045375A2 (en) 2002-06-06
CA2436860A1 (en) 2002-06-06
WO2002045375A3 (en) 2002-07-25
JP2004515165A (en) 2004-05-20
EP1342357A2 (en) 2003-09-10

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