1,2 The LSAM Proxy Cache (LPC) is a multicast distributed web cache that provides automated multicast push of web pages, based on self-configuring interest groups. The LPC is designed to reduce network and server load, and to provide increased client performance for associated groups of web pages, called ‘affinity groups.’ These affinity groups track the shifting popularity of web sites, such as for the Superbowl, the Olympics, and the Academy Awards. The LPC’s multicast hierarchy is selfconfiguring, such that these popular affinity groups are automatically cached at natural network aggregation points. This document describes the LPC architecture and the properties of a prototype implementation.
Joseph D. Touch, Amy S. Hughes