The transport layer: Tutorial and survey

Transport layer protocols provide for end-to-end communication between two or more hosts. This paper presents a tutorial on transport layer concepts a nd terminology, and a survey of transport layer services and protocols. The transport layer protocol TCP is used as a reference point, and compared an d contrasted with nineteen other protocols designed over the past two decad es. The service and protocol features of twelve of the most important proto cols are summarized in both text and tables.