Patent ID: 8060613
Filing Date: 2011-11-15
Classification: G06F,H04L

Abstract:
1. A method, in a system in which a plurality of content providers provide multiple resources to multiple clients, wherein each content provider provides at least some resources via one or more content sources associated with that content provider, and wherein at least some of said resources are to be served to clients from a shared content delivery network (CDN) formed by a plurality of repeater servers, the method comprising, at a particular repeater server in said CDN: (A) receiving, from a master server, an indication that at least one resource is no longer valid, and, in response to said receiving, causing said at least one resource to be listed as invalidated; (B) responsive to a request of the particular repeater server to serve a particular resource of a particular content provider to a particular client, determining whether said particular resource is listed as invalidated, and (C (C