WO2001093532B1 - A qos based content distribution network - Google Patents

A qos based content distribution network

Info

Publication number
WO2001093532B1
WO2001093532B1 PCT/US2001/017779 US0117779W WO0193532B1 WO 2001093532 B1 WO2001093532 B1 WO 2001093532B1 US 0117779 W US0117779 W US 0117779W WO 0193532 B1 WO0193532 B1 WO 0193532B1
Authority
WO
WIPO (PCT)
Prior art keywords
content
client computer
cache
copy
recited
Prior art date
Application number
PCT/US2001/017779
Other languages
French (fr)
Other versions
WO2001093532A2 (en
WO2001093532A3 (en
Inventor
Nathan F Raciborski
Mark R Thompson
Original Assignee
Aerocast Com 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 Aerocast Com Inc filed Critical Aerocast Com Inc
Priority to EP01944219A priority Critical patent/EP1287659A2/en
Priority to AU2001266652A priority patent/AU2001266652A1/en
Priority to CA002410850A priority patent/CA2410850A1/en
Priority to JP2001588197A priority patent/JP2003535396A/en
Publication of WO2001093532A2 publication Critical patent/WO2001093532A2/en
Publication of WO2001093532A3 publication Critical patent/WO2001093532A3/en
Publication of WO2001093532B1 publication Critical patent/WO2001093532B1/en

Links

Classifications

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H—ELECTRICITY
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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    • G—PHYSICS
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    • H—ELECTRICITY
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    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
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    • H04L67/10015—Access to distributed or replicated servers, e.g. using brokers
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    • H04L67/1029—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers using data related to the state of servers by a load balancer
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    • H04L67/2866—Architectures; Arrangements
    • H04L67/288—Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level
    • H—ELECTRICITY
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    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
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    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

Abstract

The invention relates to distributing content objects to a client computer. One embodiment includes a server, a first content cache, a second content cache and a preference list. The first server is at a first address and the second server is at a second address. The server includes a content object that is copied to the first and second content caches. Originating from a client computer, the preference list includes at least one of the first and second addresses.

Claims

AMENDED CLAIMS[received by the International Bureau on 20 June 2002 (20.06.02); original claims 1-20 replaced by amended claims 1-18 (3 pages)]
1. A system for distributing content to a client computer, comprising: a server comprising a content object; a first content cache at a first address, wherein the first content cache comprises a first copy of the content object; a second content cache at a second address, wherein the second content cache comprises a second copy of the content object; a preference list originating from the client computer, wherein the preference list comprises at least one of the first address and the second address ; and a directory that maps at least one of the content object, the first copy, and the second copy to the client computer, wherein the directory is affected by the preference list.
2. The system for distributing content to the client computer as recited in claim 1, further comprising a routing mechanism that maps one of the content object, the first copy and the second copy to the client computer.
Please cancel claim 3 without prejudice.
4. The system for distributing content to the client computer as recited in claim 1, wherein the server periodically delivers a catalog of content objects to the directory.
Please cancel claim 5 without prejudice.
6. The system for distributing content to the client computer as recited in claim 1, wherein: the content object comprises a first portion and a second portion; the first portion is stored on the first content cache and not on the second content cache; and the second portion is stored on the second content cache and not on the first content cache.
7. A system for distributing content to a client computer, comprising: a content object;
AMENDED SHEET (ARTICLE 19) 48 a first content cache at a first address, wherein the first content cache comprises a first copy of the content object; a second content cache at a second address, wherein the second content cache comprises a second copy of the content object; and a directory that maps one of the first copy and the second copy to the client computer.
8. The system for distributing content to the client computer as recited in claim 7, further comprising a preference list originating from the client computer, wherein the preference list comprises at least one of the first address and the second address.
9. The system for distributing content to the client computer as recited in claim 8, wherein the directory is affected by the preference list.
10. The system for distributing content to the client computer as recited in claim 7, further comprising a routing mechanism that maps one of the content object, a first copy and a second copy to the client computer.
11. The system for distributing content to the client computer as recited in claim 7, further comprising a server that comprises the content object.
12. The system for distributing content to the client computer as recited in claim 11, wherein the server periodically delivers catalog information to the directory.
13. The system for distributing content to the client computer as recited in claim 11, wherein: the content object comprises a first portion and a second portion; the first portion is stored on the first content cache and not on the second content cache; and the second portion is stored on the second content cache and not on the first content cache.
14. A system for distributing content to a client computer, comprising: a content object comprising a portion; a first content cache at a first address, wherein the first content cache comprises a first copy of the portion;
AMENDED SHEET (ARTICLE 19)
49 a second content cache at a second address, wherein the second content cache comprises a second copy of the portion; and a routing mechanism that maps one of the portion, the first copy and the second copy to the client computer.
5 15. The system for distributing content to the client computer as recited in claim 14, further comprising a preference list originating from the client computer, wherein the preference list comprises at least one of the first address and the second address.
16. The system for distributing content to the client computer as recited in claim 15, wherein the directory is affected by the preference list.
10 17. The system for distributing content to the client computer as recited in claim 14, further comprising a server that comprises the content object.
18. The system for distributing content to the client computer as recited in claim 17, wherein the server periodically delivers a catalog of content objects on the server to the directory.
L5 19. The system for distributing content to the client computer as recited in claim 16, wherein: the content object comprises a first fragment and a second fragment; the first fragment is stored on the first content cache and not on the second content cache; and 10 the second fragment is stored on the second content cache and not on the first content cache.
20. The system for distributing content to the client computer as recited in claim 14, wherein the routing mechanism includes a directory.
DE 7073915 vl
AMENDED SHEET (ARTICLE 19)
50
PCT/US2001/017779 2000-06-01 2001-06-01 A qos based content distribution network WO2001093532A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP01944219A EP1287659A2 (en) 2000-06-01 2001-06-01 A qos based content distribution network
AU2001266652A AU2001266652A1 (en) 2000-06-01 2001-06-01 A qos based content distribution network
CA002410850A CA2410850A1 (en) 2000-06-01 2001-06-01 A qos based content distribution network
JP2001588197A JP2003535396A (en) 2000-06-01 2001-06-01 QOS-based content distribution network

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US20900700P 2000-06-01 2000-06-01
US60/209,007 2000-06-01
US66520400A 2000-09-18 2000-09-18
US09/665,204 2000-09-18

Publications (3)

Publication Number Publication Date
WO2001093532A2 WO2001093532A2 (en) 2001-12-06
WO2001093532A3 WO2001093532A3 (en) 2002-06-06
WO2001093532B1 true WO2001093532B1 (en) 2003-03-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/017779 WO2001093532A2 (en) 2000-06-01 2001-06-01 A qos based content distribution network

Country Status (10)

Country Link
US (1) US20010051980A1 (en)
EP (1) EP1287659A2 (en)
JP (1) JP2003535396A (en)
KR (2) KR20040008258A (en)
CN (1) CN1454426A (en)
AR (2) AR029110A1 (en)
AU (1) AU2001266652A1 (en)
CA (1) CA2410850A1 (en)
TW (1) TW510106B (en)
WO (1) WO2001093532A2 (en)

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