Using Network Level Support to Improve Cache Routing

Appears in the Proceedings of the 3rd International WWW Caching Workshop June, 1998


Ulana Legedza and John Guttag


We present the design of a new distributed Web caching infrastructure that uses network-level mechanisms to provide routing of Web requests to caches. Our work is motivated by the need to provide effective caching not only for the small number of extremely popular Web documents, but also for the large number of documents of only intermediate popularity. In currently existing and proposed systems, requests for less popular documents suffer from long latency stemming from the inefficiencies of routing through an application-level overlay network. We combat this problem by integrating cache routing into the network layer, which results in shorter search paths and fewer application-level checks.


new version!! (revised 8/15/98)

.ps , .ps.gz