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Path: sserve!newshost.anu.edu.au!munnari.oz.au!constellation!convex!news.oc.com!news.kei.com!MathWorks.Com!europa.eng.gtefsd.com!howland.reston.ans.net!EU.net!dkuug!eunet.no!nuug!trane.uninett.no!nntp.uio.no!ifi.uio.no!axelstep From: axelstep@ifi.uio.no (Axel-Stephane C. Smørgrav) Newsgroups: comp.unix.bsd Subject: Re: WHAT IS A DATAGRAM ? Date: 28 Apr 1994 19:29:12 +0200 Organization: Dept. of Informatics, University of Oslo, Norway Lines: 26 Message-ID: <2porp8$kp3@menja.ifi.uio.no> References: <2pl91k$6ai@ceres.king.ac.uk> NNTP-Posting-Host: menja.ifi.uio.no In article <2pl91k$6ai@ceres.king.ac.uk>, cs_a206@ceres.king.ac.uk (Richard Smart) writes: > Hi! > > Can someone tell me what a datagram is used for ? Is it a special ethernet > packet ? > > Cheers, > > Richard Smart. > -- > *********** > Richard Smart > *********** A datagram is an uncomfirmed message. Delivery and sequencing are not guaranteed. This means that if you send two messages, they will not necessarily be delivered in the order in which they were sent, and in fact you cannot be sure that the messages were actually ever delivered. If you are interested, read "Computer Networks" by A. Tanenbaum, more specifically the chapters concerning the OSI Transport layer. -ascs