Dynamic parallel access to replicated content in the internet

Popular content is frequently replicated in multiple servers or caches in the Internet to offload origin servers and improve end-user experience. However, choosing the best server is a nontrivial task and a bad choice may provide poor end user experience. In contrast to retrieving a file from a single server, we propose a parallel-access scheme where end users access multiple servers at the same time, fetching different portions of that file from different servers and reassembling them locally. The amount of data retrieved from a particular server depends on the resources available at that server or along the path from the user to the server. Faster servers will deliver bigger portions of a file while slower servers will deliver smaller portions. If the available resources at a server or along the path change during the download of a file, a dynamic parallel access will automatically shift the load from congested locations to less loaded parts (server and links) of the Internet. The en...

• Type: Journal
• Year: 2002
• Where: TON
• Authors: Pablo Rodriguez, Ernst Biersack
• Keywords: End Users, Multiple Servers, Popular Content, TON 2002