WO2005119970A3 - Identifying reverse path forwarding information - Google Patents

Identifying reverse path forwarding information Download PDF

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Publication number
WO2005119970A3
WO2005119970A3 PCT/US2005/013136 US2005013136W WO2005119970A3 WO 2005119970 A3 WO2005119970 A3 WO 2005119970A3 US 2005013136 W US2005013136 W US 2005013136W WO 2005119970 A3 WO2005119970 A3 WO 2005119970A3
Authority
WO
WIPO (PCT)
Prior art keywords
node
reverse path
data structure
path forwarding
forwarding information
Prior art date
Application number
PCT/US2005/013136
Other languages
French (fr)
Other versions
WO2005119970A2 (en
Inventor
John H W Bettink
Original Assignee
Cisco Tech 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 Cisco Tech Inc filed Critical Cisco Tech Inc
Priority to AT05735574T priority Critical patent/ATE501568T1/en
Priority to DE602005026808T priority patent/DE602005026808D1/en
Priority to EP05735574A priority patent/EP1757024B1/en
Publication of WO2005119970A2 publication Critical patent/WO2005119970A2/en
Publication of WO2005119970A3 publication Critical patent/WO2005119970A3/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
    • 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
    • H04L45/74—Address processing for routing
    • H04L45/745—Address table lookup; Address filtering
    • H04L45/74591—Address table lookup; Address filtering using content-addressable memories [CAM]

Abstract

Disclosed are methods, apparatus, data structures, computer readable media, mechanisms, and means for maintaining and using a data structure (fig. 2) identifying for multiple addresses the reverse path forwarding information (RPF) for a common intermediate node. A data structure includes an address lookup data structure (250) for identifying leaf nodes (212, 213, 214) of multiple leaf nodes corresponding to matching addresses. Each of the multiple leaf nodes (212, 213, 214) includes a reverse path forwarding indirection (RPF) link to a corresponding sub-data structure (260) indicating reverse path forwarding information (RPF). Each of a particular set of leaf nodes having a same intermediate reachability node (211) in a network includes a particular indirection link to a same particular sub-data structure indicating reverse path forwarding information (RPF). The intermediate reachability node (211) may or may not be a gateway node to a different intranet (200, 210). The intermediate reachability node (211) is typically a node in the network which traffic between a node and multiple other nodes must traverse.
PCT/US2005/013136 2004-05-27 2005-04-18 Identifying reverse path forwarding information WO2005119970A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT05735574T ATE501568T1 (en) 2004-05-27 2005-04-18 IDENTIFYING BACKWARD FORWARDING INFORMATION
DE602005026808T DE602005026808D1 (en) 2004-05-27 2005-04-18 IDENTIFY REVERSE PATTERN FORWARDING INFORMATION
EP05735574A EP1757024B1 (en) 2004-05-27 2005-04-18 Identifying reverse path forwarding information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/856,558 US7480255B2 (en) 2004-05-27 2004-05-27 Data structure identifying for multiple addresses the reverse path forwarding information for a common intermediate node and its use
US10/856,558 2004-05-27

Publications (2)

Publication Number Publication Date
WO2005119970A2 WO2005119970A2 (en) 2005-12-15
WO2005119970A3 true WO2005119970A3 (en) 2006-08-24

Family

ID=35425156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/013136 WO2005119970A2 (en) 2004-05-27 2005-04-18 Identifying reverse path forwarding information

Country Status (6)

Country Link
US (1) US7480255B2 (en)
EP (1) EP1757024B1 (en)
CN (1) CN100547976C (en)
AT (1) ATE501568T1 (en)
DE (1) DE602005026808D1 (en)
WO (1) WO2005119970A2 (en)

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US8625642B2 (en) 2008-05-23 2014-01-07 Solera Networks, Inc. Method and apparatus of network artifact indentification and extraction
US20110125748A1 (en) * 2009-11-15 2011-05-26 Solera Networks, Inc. Method and Apparatus for Real Time Identification and Recording of Artifacts
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US8713169B2 (en) 2011-10-11 2014-04-29 Cisco Technology, Inc. Distributed IPv6 neighbor discovery for large datacenter switching systems
US9374320B2 (en) * 2012-07-27 2016-06-21 Cisco Technology, Inc. Investigating the integrity of forwarding paths within a packet switching device
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US9531564B2 (en) * 2014-01-15 2016-12-27 Cisco Technology, Inc. Single hop overlay architecture for line rate performance in campus networks
CN110636064A (en) * 2019-09-23 2019-12-31 浪潮软件集团有限公司 High-speed encrypted data synchronization method and system based on GZIP compression
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Also Published As

Publication number Publication date
WO2005119970A2 (en) 2005-12-15
EP1757024A2 (en) 2007-02-28
US20050265328A1 (en) 2005-12-01
EP1757024B1 (en) 2011-03-09
DE602005026808D1 (en) 2011-04-21
CN100547976C (en) 2009-10-07
EP1757024A4 (en) 2008-03-19
US7480255B2 (en) 2009-01-20
ATE501568T1 (en) 2011-03-15
CN1947381A (en) 2007-04-11

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