Path: utzoo!utgpu!watserv1!watmath!att!att!tut.cis.ohio-state.edu!ucbvax!MATHOM.CISCO.COM!BILLW
From: BILLW@MATHOM.CISCO.COM (William "Chops" Westfield)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Reliable Datagram ??? Protocols
Message-ID: <12632159446.18.BILLW@mathom.cisco.com>
Date: 23 Oct 90 20:44:18 GMT
References: <9010231728.AA03948@braden.isi.edu>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 16


    If you need records, you can build a trivial framing protocol on top
    of TCP.  There have been many examples of this... Mike Muuss' PKG,
    records in Sun's XDR, and Dave Clark's USP come immediately to mind.

Yes, yes.  This is not difficult, and is clearly the way to do things
within the framework of the currently defined protocols.  In fact, the
cisco routers do exactly this sort of thing for running X.25 over TCP.

Aesthetically, though, it bothers me to have to do the extra work of
converting datagrams to streams and back when the underlying transmission
scheme is almost certainly datagram based.  (Hmm, is anyone running TCP
over anything other than IP?)

BillW
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