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From: mark@cbosgd.UUCP (Mark Horton)
Newsgroups: net.dcom,net.lan
Subject: Reliable Datagram Protocol
Message-ID: <474@cbosgd.UUCP>
Date: Sat, 3-Nov-84 22:16:24 EST
Article-I.D.: cbosgd.474
Posted: Sat Nov  3 22:16:24 1984
Date-Received: Tue, 6-Nov-84 04:20:49 EST
Organization: Bell Labs, Columbus
Lines: 18

Does anyone know of a protocol, proposed or in use, that implements
reliable datagrams (suitable for use by a transaction system) within
the TCP/IP protocol suite?  The ARPANET RDP protocol is just confusingly
named, since it's intended for something completely different.

Something similar to the XNS PXP protocol might be appropriate.  Has
anyone implemented PXP on top of IP?  Are there any inherent problems
in doing that?

Does the upcoming ISO protocol suite have a similar protocol?

Has anyone done an analysis of the tradeoffs between using such an RDP/PXP
protocol and just using TCP?  In other words, has someone already decided
to use TCP for a transaction system, and if so, why?

	Mark Horton
	ucbvax!cbosgd!mark
	mark@Berkeley.ARPA