Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site uw-beaver
Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!cornell!uw-beaver!fowler
From: fowler@uw-beaver (Rob Fowler)
Newsgroups: net.unix-wizards
Subject: Re: TCP/IP over T1 query
Message-ID: <961@uw-beaver>
Date: Tue, 26-Mar-85 16:21:00 EST
Article-I.D.: uw-beave.961
Posted: Tue Mar 26 16:21:00 1985
Date-Received: Thu, 28-Mar-85 00:01:33 EST
References: <347@wdl1.UUCP>
Reply-To: fowler@uw-beaver.UUCP (Rob fowler)
Organization: U of Washington Computer Science
Lines: 13
Summary: 

I don't have the exact details and numbers at hand, but T1 is relevant to the
ARPANET.  T1 sends fixed length packets on an approx. 1.1Mbit channel.
The packet contains a number of bytes (20 sounds good), each of
which is assigned to a sub-channel.  The effect of this is that one
T1 link can be used as 20 (a guess) 56Kbit digital channels.  I assume
that this is how the dedicated channels used by ARPANET are in fact
implemented.

If you really want to get into this I suggest that you start talking
to a manufacturer of T1 equipment.  Teltone of Redmond, WA. and MICOM
both make digital T1 multiplexors of various flavors.  

-- Rob Fowler (fowler@washington, uw-beaver!fowler)