Satellite multicast performance enhancing multicast HTTP proxy system and method
US6658463B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2000 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Feb 4, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/5651
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system including an upstream proxy server and two reporting downstream proxy servers, where the upstream proxy server is capable of multicasting a uniform resource locator (URL) to the reporting downstream proxy servers, the reporting downstream proxy servers interact with the upstream proxy server to resolve cache misses and the upstream proxy servers returns a resolution to a cache miss via multicast. A downstream proxy server which filters multicast transmissions of URLs and stores a subset of the URLs for subsequent transmission, where relative popularity is used to determine whether to store a multicast URL. An upstream proxy server capable of multicasting URLs to reporting downstream proxy servers, where the upstream proxy server interacts with the two reporting downstream proxy servers to resolve cache misses and the upstream proxy server returns a resolution to the cache misses via multicast. A proxy server protocol which includes a transaction request further including a request header, request content, and a request extension that supports multicast hit reporting and a transaction response further including a response header, response content, and a respon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.