System and method for locating a closest server in response to a client domain name request
US7020698B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Mar 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/509
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A scalable system and method for locating a closest server in response to a client request via an interactive distribution network, such as the Internet, are provided. A closest content server is defined as having the least round trip time for responding to a client request. The system including a plurality of content servers; and a local server in communication with a plurality of clients, the local server acting as a proxy for communicating client requests from clients to a redirection server. Client network distance and load information is periodically collected at each content server in the network from clients communicating with each of the respective content servers. The redirection server periodically aggregates the network distance and load information from each content server to create client clusters from both current and previously aggregated network distance and load information. Each client cluster represents a division or partition of the total IP address space. Each client cluster is then mapped (paired) to one or more content servers in the network. The mapping or pairing is then utilized to respond to client DN requests received from any client in the network. Anot…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.