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From: hd@kvvax4.UUCP (H}kon Dahle)
Newsgroups: net.lan
Subject: Re: ISO Protocol Suite
Message-ID: <373@kvvax4.UUCP>
Date: Thu, 29-Mar-84 10:05:22 EST
Article-I.D.: kvvax4.373
Posted: Thu Mar 29 10:05:22 1984
Date-Received: Sat, 31-Mar-84 09:39:51 EST
References: <1158@cbosgd.UUCP>
Organization: Kongsberg Vaapenfabrikk, CTG, P.O Box 25, N-3601 Kongsberg, Norway
Lines: 27

<>

Agree, where are the articles discussing protocol architecture,
specifications, services and implementations?

There is a lot of stuff on things like Ethernet cable lengths etc.,
but what about the remaing six layers of ISO OSI reference model?

Now :
     >There is an obvious advantage to building virtual circuits ala TCP
     >on top of datagrams ala IP - you only have to solve the internet
     >problems once for IP.  Is the above paragraph correct?

As far as I can see it is. The TCP belongs to layer four,
and is not subject to the restrictions for the layers 5-7.
The same counts for X.25 on top of a datagram network service, it
is an enhancement of the network service only.

Sorry to say, this obvious advantage is not so obvious for everybody,
not in Europe and inside ISO anyway. Let us only hope more people realise
this is the way to go. As I see it, the future is computers
interconnected via LANs, using the datagram type of network service.


Haakon Dahle {decvax,philabs}!mcvax!kvport!kvvax4!hd
A/S Kongsberg Vaapenfabrikk, Dept CTG4, PO Box 25, N3601 Kongsberg, Norway
Tel.  + 47-3-738284       Tlx.   71491 vaapn n