WO2008021595A3 - Method and apparatus for load balancing over virtual network links - Google Patents

Method and apparatus for load balancing over virtual network links Download PDF

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Publication number
WO2008021595A3
WO2008021595A3 PCT/US2007/068315 US2007068315W WO2008021595A3 WO 2008021595 A3 WO2008021595 A3 WO 2008021595A3 US 2007068315 W US2007068315 W US 2007068315W WO 2008021595 A3 WO2008021595 A3 WO 2008021595A3
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WO
WIPO (PCT)
Prior art keywords
data
data link
virtual
load balancing
group
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PCT/US2007/068315
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French (fr)
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WO2008021595A2 (en
Inventor
Jimmy Ervin
Mike Takefman
Praveen Bhagwatula
James Alexander
Steven Faulkner
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Cisco Tech Inc
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Publication date
Application filed by Cisco Tech Inc filed Critical Cisco Tech Inc
Priority to EP07783341.6A priority Critical patent/EP2057863B1/en
Publication of WO2008021595A2 publication Critical patent/WO2008021595A2/en
Publication of WO2008021595A3 publication Critical patent/WO2008021595A3/en

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    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering

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

Abstract

Techniques for load balancing network traffic over virtual point-to-point (PPP) data links at a data link layer include determining a particular group of virtual PPP data links that reach a particular local area network of one or more network nodes. A particular data link address for a particular node of the particular local area network is associated with each virtual PPP data link of the particular group. When a data packet is received that includes data that indicates the particular data link address as a destination; one virtual PPP data link of the group is determined to balance traffic among the group. The data packet is sent only over the one virtual PPP data link. These techniques enable virtual PPP data links through two or more intermediate network nodes, such as a pair of provider edge nodes, to be bundled for load balancing purposes.
PCT/US2007/068315 2006-08-07 2007-05-06 Method and apparatus for load balancing over virtual network links WO2008021595A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07783341.6A EP2057863B1 (en) 2006-08-07 2007-05-06 Method and apparatus for load balancing over virtual network links

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/500,732 US7580417B2 (en) 2006-08-07 2006-08-07 Method and apparatus for load balancing over virtual network links
US11/500,732 2006-08-07

Publications (2)

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WO2008021595A2 WO2008021595A2 (en) 2008-02-21
WO2008021595A3 true WO2008021595A3 (en) 2008-06-26

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PCT/US2007/068315 WO2008021595A2 (en) 2006-08-07 2007-05-06 Method and apparatus for load balancing over virtual network links

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US (1) US7580417B2 (en)
EP (1) EP2057863B1 (en)
WO (1) WO2008021595A2 (en)

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EP2057863B1 (en) 2015-08-12
EP2057863A2 (en) 2009-05-13
US7580417B2 (en) 2009-08-25
US20080031263A1 (en) 2008-02-07
EP2057863A4 (en) 2012-03-07
WO2008021595A2 (en) 2008-02-21

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