WO2002067497A3 - Method and system for packet communication employing path diversity - Google Patents

Method and system for packet communication employing path diversity Download PDF

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Publication number
WO2002067497A3
WO2002067497A3 PCT/US2002/003454 US0203454W WO02067497A3 WO 2002067497 A3 WO2002067497 A3 WO 2002067497A3 US 0203454 W US0203454 W US 0203454W WO 02067497 A3 WO02067497 A3 WO 02067497A3
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WO
WIPO (PCT)
Prior art keywords
path
path diversity
internet
architecture
behavior
Prior art date
Application number
PCT/US2002/003454
Other languages
French (fr)
Other versions
WO2002067497A2 (en
Inventor
G John Apostolopoulos
Greg Wornell
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Priority to EP02713545A priority Critical patent/EP1360797A2/en
Priority to JP2002566901A priority patent/JP2004529533A/en
Publication of WO2002067497A2 publication Critical patent/WO2002067497A2/en
Publication of WO2002067497A3 publication Critical patent/WO2002067497A3/en

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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
    • 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
    • H04L45/24—Multipath
    • 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
    • H04L45/34—Source routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • 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
    • H04L69/14—Multichannel or multilink protocols

Abstract

Communication over lossy packet networks such as the Internet is hampered by limited bandwidth and packet loss. The present invention provides a path diversity transmission system for improving the quality of communication over a lossy packet network. The path diversity transmission system explicitly sends different subsets of packets over different paths, thereby enabling the end-to-end application to effectively see an average path behavior. Generally, seeing this average path behavior provides better performance than seeing the behavior of any individual random path. For example, the probability that all of the multiple paths are simultaneously congested is much less than the probability that a single path is congested. The resulting path diversity can provide a number of benefits, including enabling real-time multimedia communication and simplifying system design (e.g., error correction system design). Two exemplary architectures for achieving path diversity are described herein. The first architecture is based on source routing, and the second architecture is based on a relay infrastructure. The second architecture routes traffic through semi-intelligent nodes at strategic locations in the Internet, thereby providing a service of improved reliability while leveraging the infrastructure of the Internet.
PCT/US2002/003454 2001-02-16 2002-02-08 Method and system for packet communication employing path diversity WO2002067497A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02713545A EP1360797A2 (en) 2001-02-16 2002-02-08 Method and system for packet communication employing path diversity
JP2002566901A JP2004529533A (en) 2001-02-16 2002-02-08 Method and system for packet communication utilizing path diversity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/784,226 US6868083B2 (en) 2001-02-16 2001-02-16 Method and system for packet communication employing path diversity
US09/784,226 2001-02-16

Publications (2)

Publication Number Publication Date
WO2002067497A2 WO2002067497A2 (en) 2002-08-29
WO2002067497A3 true WO2002067497A3 (en) 2003-02-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/003454 WO2002067497A2 (en) 2001-02-16 2002-02-08 Method and system for packet communication employing path diversity

Country Status (4)

Country Link
US (1) US6868083B2 (en)
EP (1) EP1360797A2 (en)
JP (1) JP2004529533A (en)
WO (1) WO2002067497A2 (en)

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