The Heidelberg Transport Protocol (HeiTP) is a transport layer protocol for multimedia communication in the Internet. HeiTP is designed to run on top of the ST-II protocol and assumes that multimedia data travel along a privileged path in which services can be guaranteed via reservation or preallocation of the resources involved in the communication. The paper describes how HeiTP supports the negotiation of QOS parameters, multi-destination connections, and how error handling is dealt with in ajlexible way. A mapping of the HeiTP interface to an extended version of the XIOpen Transport Interface (XTI) that supports multimedia is also presented.
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