Return-Path: <schwartz@latour.cs.colorado.edu>
Date: Thu, 20 May 1993 06:03:32 -0600
From: Mike Schwartz <schwartz@latour.cs.colorado.edu>
Message-Id: <199305201203.AA28199@latour.cs.colorado.edu>
To: Internet-Measurement-Report-List@latour.cs.colorado.edu
Subject: Internet service-level reachability measurement report available

The following paper is available by anonymous FTP and e-mail from
ftp.cs.colorado.edu in the directory
pub/cs/techreports/schwartz/PostScript/InetMeasStudy/Report:

	M. F. Schwartz and J. S. Quarterman.  A Measurement Study of
	Changes in Service-Level Reachability in the Global Internet.
	Technical Report CU-CS-649-93, Department of Computer Science,
	University of Colorado, Boulder, Colorado, May 1993.

This is a report based on the measurement experiments announced in
Internet Request For Comments 1273 (which is also available in the
InetMeasStudy directory).

Abstract:

        The Internet is currently in a period of exponential growth, as
        measured by domain registrations and packet counts.
        Increasingly often, people want to know how fast a particular
        part of the Internet is growing - to do capacity planning, gauge
        commercial promise, or simply to understand this important
        change in our society.  Yet, looking only at registrations and
        packet counts does not uncover the full complexity of the
        situation.  There are a variety of ways that sites can connect
        to the Internet, each offering different capabilities, costs,
        and technical problems.  Moreover, growing awareness of network
        security problems is changing the way people think about
        connecting to the Internet, based on mechanisms such as firewall
        gateways.  In this paper we analyze Internet growth based on
        measurements of which of a dozen common TCP services could be
        reached at each of over 13,000 domains worldwide, tested four
        times over the course of 1992.  We analyze this data as a
        function of country, type of institution, and type of service.
        We also derive mathematical models that can be used to project
        growth and disconnection rates for individual countries and the
        global Internet.
