US6330561B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for improving end to end performance of a data network
Assignee: AT&T Inc
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Filing: 1998-06-26
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Granted: 2001-12-11
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Expires: 2018-06-26
Abstract
Abstract A method and apparatus provide improved cache coherency and more effective caching operations without placing an undue burden on network links. A proxy receives a request for a resource and then, depending on information in the proxy cache, generates a resource request for transmission to a resource server. The proxy appends a proxy filter to the request. The resource server maintains one or more volumes of resources based on some predetermined criterion that can be either static or dynamic in nature. Upon receipt of the request and the proxy filter the resource server generates a request response and a piggybacked list of additional resources selected from the volume with which the requested resource is associated.
Inventors
- 👤 Edith Cohen
- 👤 Balachander Krishnamurthy
- 👤 Jennifer Lynn Rexford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/90; G06F16/95; G06F16/957; G06F16/9574; Y; Y10; Y10S; Y10S707/00; Y10S707/99931; Y10S707/99932; Y10S707/99933; Y10S707/99938; Y10S707/99941; Y10S707/99943; Y10S707/99944; Y10S707/99945
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
169 words
A method for effecting a transfer of information to a proxy server, the method comprising the steps of: receiving a request for information regarding a resource; generating a response to said request, said step of generating including the substeps of, retrieving the requested information, reviewing, volume information correlated to the resource, determining a set of additional information to be related to said resource including the substeps of, analyzing the received request to identify the resource associated with request and to interpret a filter related to a proxy that sent the received request; identifying, based on the output of the analyzing step, at least one further resource related to said resource including the substeps of: reviewing volume information correlated to the resource associated with the request; and creating a set of further resources based on said review and the interpretation of the filter, and compiling information about any identified further resource, and combining the retrieved information and the set of additional information; and transmitting said response to the proxy server.
Claim 2
Independent Claim
169 words
A method for effecting a transfer of information to a proxy server, the method comprising the steps of: receiving a request for information regarding a resource; generating a response to said request, said step of generating including the substeps of, retrieving the requested information, reviewing, volume information correlated to the resource, determining a set of additional information to be related to said resource including the substeps of, analyzing the received request to identify the resource associated with request and to interpret a filter related to a proxy that sent the received request; identifying, based on the output of the analyzing step, at least one further resource related to said resource including the substeps of: reviewing volume information correlated to the resource associated with the request; and creating a set of further resources based on said review and the interpretation of the filter, and compiling information about any identified further resource, and combining the retrieved information and the set of additional information; and transmitting said response to the proxy server.
Claim 3
Dependent Claim
26 words
The method of claim 1 wherein the compiled information regarding said at least one further resource includes an identifier for said at least one further resource.
Claim 4
Dependent Claim
26 words
The method of claim 2 wherein said compiled information regarding said at least one further resource includes attribute information regarding said at least one further resource.
Claim 5
Dependent Claim
27 words
The method of claim 3 wherein said attribute information is selected from the group comprising resource size, resource content type and last modified time of a resource.
References Cited (Backward Citations)
US5754939A
Cited
US5729689A
Cited
US5805809A
Cited
US6029175A
Cited
US6032184A
Cited
US5864852A
Cited
US5918013A
Cited
US5935207A
Cited
US5996022A
Cited
US5933832A
Cited
US6012083A
Cited
US5924116A
Cited
US6065058A
Cited
US6038601A
Cited
US6070184A
Cited
US5950205A
Cited
US6085193A
Cited
US6151601A
Cited
US6212560B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-12-10 | 2005-06-11 | 2005-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-12-10 | 2009-06-11 | 2009-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-12-10 | 2013-06-11 | 2013-12-11 | $7700.00 | Window Closed / Lapsed |