End-to-end protocols/Internet
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Several end-to-end data transfer protocols run in the Internet Protocol Suite:
- User Datagram Protocol (UDP)
- Transmission control protocol (TCP)
- Real-time Protocol (RTP) with Real-time control protocol (RTCP). While RTP/RTCP do have the attributes of end-to-end protocols, they are encapsulated in UDP for transmission
Another end-to-end function is the Resource Reservation Protocol, which allocates capacity from end to end, but is not responsible for transfer.
Historic end-to-end protocols include OSI Transport Protocol (Classes 0-4), Novell SPX, AppleTalk Transaction Protocol, DECnet Network Service Protocol, and, in Xerox Network Services, the Sequenced Packet Protocol and Packet Exchange Protocol.