Patent ID: 7343422
Filing Date: 2008-03-11
Classification: G06F,H04L

Abstract:
1. A method, comprising: receiving a request for content having associated therewith an information object identified by a uniform resource locator (URL) including a redirector address; mapping, using a lookup table, the URL of the information object to a corresponding unicast address associated with an originating source for the information object; using the unicast address as an anycast address so as to obtain the information object from a nearest information object repository identified by a redirector identified by the redirector address, wherein the nearest information object repository is selected according to specified performance metrics that comprise average delay from the nearest information object repository to a source of the request, average processing delay at the nearest information object repository, reliability of a path from the nearest information object repository, available bandwith in said path, and loads on the nearest information object repository; directing the request to the nearest information object repository; determining if the information object repository has the information object; instructing the nearest information object repository to obtain a copy of the information object, if the nearest information object repository does not store the information object; monitoring an established connection between a destination of the request and the nearest information object repository servicing the request; and adjusting the established connection if the network conditions of the established connection degrade by replacing the nearest information object repository with a different information object repository.