Dynamic Multi-path Communication for Video Traac
نویسندگان
چکیده
Video-on-Demand applications emerge on campus-wide networks. Compressed video streams pass switches which do not have any bandwidth reservation mechanism , nor any other mechanism against congestion. The switches, shared among video servers, WWW servers and clients, get easily congested in critical situations , hence the switches drop packets and the quality of end-to-end delivery service degrades. To provide soft bandwidth (QoS) guarantees for video, we designed and tested through simulation a dynamic end-to-end multi-path protocol for video traac. We compared our dynamic multi-path protocol performance with a dynamic single-path protocol and the experiments show signiicant advantages of the dynamic multi-path communication with respect to provision of soft bandwidth guarantees for video traac. A disadvantage of our approach is the reordering overhead. However , the use of the higher level frame information helps to simplify reordering and the overhead is acceptable.
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