What are the advantages of LAN based web caching?
The purpose of LAN based caching is to improve network efficiency by reducing the amount of traffic between the LAN and the Internet. The most obvious, and most frequently cited benefit is the shorter time required for the caching server to deliver cached content. Delivery time and therefore the end user experience are enhanced dramatically. For example, delivery of a 100KB web page from the originating server to the end user would take about 17 seconds over a 56Kbps modem, or 7.8 seconds over a dual channel Multilink PPP ISDN connection, assuming that there was no additional traffic congestion at the ISP or on the Internet backbone (this is not necessarily the case). The same page would take one second to deliver over a T1 connection, again assuming perfect Internet traffic conditions. However, this same page would be delivered from the caching server to the end user in about one tenth of a second regardless of Internet traffic conditions. This is the first and most obvious benefit of
