WO1999048003A3 - Protocol for distributing fresh content among networked cache servers - Google Patents

Protocol for distributing fresh content among networked cache servers Download PDF

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Publication number
WO1999048003A3
WO1999048003A3 PCT/US1999/004738 US9904738W WO9948003A3 WO 1999048003 A3 WO1999048003 A3 WO 1999048003A3 US 9904738 W US9904738 W US 9904738W WO 9948003 A3 WO9948003 A3 WO 9948003A3
Authority
WO
WIPO (PCT)
Prior art keywords
cache
home server
cache servers
protocol
request messages
Prior art date
Application number
PCT/US1999/004738
Other languages
French (fr)
Other versions
WO1999048003A2 (en
Inventor
Abdelsalam A Heddaya
Sulaiman A Mirdad
David J Yates
Ian C Yates
Original Assignee
Infolibria 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 Infolibria Inc filed Critical Infolibria Inc
Priority to EP99909815A priority Critical patent/EP1076978A2/en
Priority to AU28937/99A priority patent/AU2893799A/en
Publication of WO1999048003A2 publication Critical patent/WO1999048003A2/en
Publication of WO1999048003A3 publication Critical patent/WO1999048003A3/en

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
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
    • G06F12/0813—Multiuser, multiprocessor or multiprocessing cache systems with a network or matrix configuration
    • 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
    • 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
    • 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 technique for automatic, transparent, distributed, scalable and robust replication of document copies in a computer network wherein request messages for a particular document follow paths from the clients to a home server that form a routing graph. Client request messages are routed up the graph towards the home server as would normally occur in the absence of caching. However, cache servers are located along the route, and may intercept requests if they can be serviced. In order to be able to service requests in this manner without departing from standard network protocols, the cache server needs to be able to insert a packet filter into the router associated with it, and needs also to proxy for the home server from the perspective of the client. Cache servers cooperate to update cache content by communicating with neighboring caches whenever information is received about invalid cache copies.
PCT/US1999/004738 1998-03-17 1999-03-03 Protocol for distributing fresh content among networked cache servers WO1999048003A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99909815A EP1076978A2 (en) 1998-03-17 1999-03-03 Protocol for distributing fresh content among networked cache servers
AU28937/99A AU2893799A (en) 1998-03-17 1999-03-03 Protocol for distributing fresh content among networked cache servers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/040,520 US6205481B1 (en) 1998-03-17 1998-03-17 Protocol for distributing fresh content among networked cache servers
US09/040,520 1998-03-17

Publications (2)

Publication Number Publication Date
WO1999048003A2 WO1999048003A2 (en) 1999-09-23
WO1999048003A3 true WO1999048003A3 (en) 1999-11-04

Family

ID=21911427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/004738 WO1999048003A2 (en) 1998-03-17 1999-03-03 Protocol for distributing fresh content among networked cache servers

Country Status (5)

Country Link
US (1) US6205481B1 (en)
EP (1) EP1076978A2 (en)
AU (1) AU2893799A (en)
WO (1) WO1999048003A2 (en)
ZA (1) ZA992138B (en)

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Also Published As

Publication number Publication date
EP1076978A2 (en) 2001-02-21
ZA992138B (en) 1999-10-21
WO1999048003A2 (en) 1999-09-23
US6205481B1 (en) 2001-03-20
AU2893799A (en) 1999-10-11

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