Abstract
At iGrid2002, members of the Logistical Computing and Internetworking (LoCI) Lab had two goals. The first was to present an application, Video IBPster, built using the tools of the Network Storage Stack that delivers DVD-quality video without dropping frames, without losing data and without specialized multi-media streaming servers. The Video IBPster demo easily played MPEG-2 video files encoded at bit-rates up to 15 Megabit/s (Mbps). The second goal was to determine performance limits when using multiple, untuned TCP streams to retrieve a striped and replicated file across a long network. Since tools built using the Network Storage Stack allow striped downloads from multiple servers in parallel and since the client machines were all connected to Gigabit Ethernet (GigE), we hoped that we would observe a linear scale up of throughput when downloading from multiple servers. Although we did see increased throughput, it was not linear.
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