Date: Fri, 30 Apr 93 10:17:27 +0200 From: Dave Morton <Dave.Morton@ecrc.de> To: ripe@ripe.net, schwartz@latour.cs.colorado.edu Subject: Re: Caching in Europe?
Mike, How would compare this to AFS for example ?
Dave, AFS does whole file caching at each client, primarily to reduce file server load. In conrtrast, our study suggests placing caches within the network to reduce duplicate transmissions across individual links. AFS evolved from a system originally built to support easy access to files from anywhere in a moderately large university community. In such an environment there isn't much widespread sharing - most files are accessed by one or a handful of users working on a project together, as opposed to thousands of sites retrieving the same popular FTP files. In our study we found that half of all FTP data by volume crossing a particular network link were duplicate transmissions of files that had previously traversed that link. - Mike