CA2241634A1 - A low cost satellite caching system - Google Patents

A low cost satellite caching system

Info

Publication number
CA2241634A1
CA2241634A1 CA002241634A CA2241634A CA2241634A1 CA 2241634 A1 CA2241634 A1 CA 2241634A1 CA 002241634 A CA002241634 A CA 002241634A CA 2241634 A CA2241634 A CA 2241634A CA 2241634 A1 CA2241634 A1 CA 2241634A1
Authority
CA
Canada
Prior art keywords
local
caching
wide area
central
unit
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002241634A
Other languages
French (fr)
Other versions
CA2241634C (en
Inventor
Brian Armbruster
Peter Wall
Jeff Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
2201028 Ontario Inc
Original Assignee
Vistar Telecommunications Inc.
Brian Armbruster
Peter Wall
Jeff Brown
Transcore Link Logistics Corporation
2201028 Ontario 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 Vistar Telecommunications Inc., Brian Armbruster, Peter Wall, Jeff Brown, Transcore Link Logistics Corporation, 2201028 Ontario Inc. filed Critical Vistar Telecommunications Inc.
Publication of CA2241634A1 publication Critical patent/CA2241634A1/en
Application granted granted Critical
Publication of CA2241634C publication Critical patent/CA2241634C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/2885—Hierarchically arranged intermediate devices, e.g. for hierarchical caching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/95—Retrieval from the web
    • G06F16/957—Browsing optimisation, e.g. caching or content distillation
    • G06F16/9574—Browsing optimisation, e.g. caching or content distillation of access to content, e.g. by caching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/95—Retrieval from the web
    • G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—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
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • 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
    • H04L69/30—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

A system for disseminating information over a wide area network includes a central caching unit for storing data to be made available over the wide area ne twork. Local access give users access to the wide area network. Distributed caching uni ts associated with the local access nodes for store cacheable material. A satellite communications system establishes satellite communications between the central c aching unit and the local caching units for the transfer of cacheable material from the central caching unit to the local units. A router at the local access nodes routes packe ts from users to a destination address. The router includes local routing tables containing th e addresses of material cached at the associated local node and responds to routing requests for locally cached material by directing the requests to the local cache.
CA002241634A 1997-06-24 1998-06-22 A low cost satellite caching system Expired - Lifetime CA2241634C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/881,113 US6243760B1 (en) 1997-06-24 1997-06-24 Information dissemination system with central and distributed caches
US08/881,113 1997-06-24

Publications (2)

Publication Number Publication Date
CA2241634A1 true CA2241634A1 (en) 1998-12-24
CA2241634C CA2241634C (en) 2005-02-08

Family

ID=25377810

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002241634A Expired - Lifetime CA2241634C (en) 1997-06-24 1998-06-22 A low cost satellite caching system

Country Status (2)

Country Link
US (2) US6243760B1 (en)
CA (1) CA2241634C (en)

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WO2001031847A1 (en) * 1999-10-22 2001-05-03 Microsoft Corporation A method for communicating with multiple network nodes
WO2002060127A2 (en) * 2001-01-26 2002-08-01 International Business Machines Corporation Distributed multicast caching technique

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1049028A2 (en) * 1999-04-26 2000-11-02 Sarnoff Corporation Efficient distribution of information to the end-user
EP1049028A3 (en) * 1999-04-26 2001-01-31 Sarnoff Corporation Efficient distribution of information to the end-user
WO2001013600A1 (en) * 1999-08-16 2001-02-22 Orblynx, Inc. Caching data in a network
WO2001031847A1 (en) * 1999-10-22 2001-05-03 Microsoft Corporation A method for communicating with multiple network nodes
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WO2002060127A2 (en) * 2001-01-26 2002-08-01 International Business Machines Corporation Distributed multicast caching technique
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Also Published As

Publication number Publication date
US6243760B1 (en) 2001-06-05
US6944676B1 (en) 2005-09-13
CA2241634C (en) 2005-02-08

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Legal Events

Date Code Title Description
FZDC Discontinued application reinstated
EEER Examination request
MKEX Expiry

Effective date: 20180622