Practical Efficiencies of Slotted Stream Tapping in IP Networks
Achraf Gazdar, Abdelfettah Belghith · 2007
Abstract: Many broadcasting protocols have been proposed for video-on-demand systems. The overwhelming majority of these protocols are, however, analytically evaluated or studied through simulations but virtually with no consideration to their feasibility and or ease of implementation in a real network environment. Efficient VoD protocols are usually the most complex in terms of implementation at both the client and the server sides. In this paper, we detail the design and the implementation of our proposed VoD protocol called Slotted Stream Tapping (SST), in an IP environment using IETF standards. We compare STT results to the theoretical results of the most known hybrid protocols and show that SST presents indeed an adequate compromise between ease of implementation and server/network performance. Extensive experiments are conducted on our test bed to evaluate the server/client bandwidth consumption and the client buffer size. We finally compare STT theoretical and experimental results which we prove to be in very close resemblance.