LSAM proxy cache: a multicast distributed virtual cache

The LSAM Proxy Cache (LPC) is a multicast distributed web cache that provid es automated multicast push of web pages, based on self-configuring interes t groups. The LPC is designed to reduce network and server load, and to pro vide increased client performance for associated groups of web pages, calle d '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 self-configuring, such that these popula r affinity groups are automatically cached at natural network aggregation p oints. This document describes the LPC architecture and the properties of a prototype implementation. (C) 1998 Published by Elsevier Science B.V. All rights reserved.