The most important feature driving PC sales is Internet
access. The PC, a device that started life as a standalone low end
computing tool is now the preferred information access appliance. Most
homes and small businesses in the industrialized world have at least one
and often times have several computers. As prices continue to fall PC
population is exploding. PCs are being joined by a plethora of other
devices such as: iPODs, cellular phones, game boxes and numerous other
intelligent devices. No longer are standalone product acceptable the
usefulness of the device is dependant on its ability to communicate.
Cable TV and Telephone Digital
Subscriber Line Internet access represent tremendous improvement over
traditional low speed dialup. Some residential subscribers already have
access to extremely high speed, called Fiber
to the Premise (FTTP). FTTP delivers multimegibit services at low cost
and high reliability. WiFi
delivers untethered network access and in some locations WiFi hotspots
deliver high speed access on the go. Cellular network owners are rolling
out a multitude of high speed data services. These technologies are
changing how the Internet is perceived. High speed allows real time access
to high quality audio, provides faster data transfers and better
multi-user gaming. Always-on connection encourage spur of the moment
usage.
Dedicating an Internet connection to each device is wasteful and
inconvenient. The solution is to create a local network (LAN) that allows
devices to communicate with one another locally while sharing a single
Internet connection. Home networking is advantageous even with
a lowly dialup connection and gets better when used with high speed,
always on services.
To learn more about the issues involved in setting up and operating a
SOHO LAN I decided to build one. Much has been made of the difficulty
installing Ethernet IEEE
803.2 using TIA Unshielded
Twisted Pair (UTP) structured wiring. Several "no new wire"
initiatives are focused on reducing barriers to home networking.
Significant effort has gone into phone line networking: HomePNA,
power line networking: HomePlug,
and wireless: WiFi.
These initiatives aim to eliminate specialized wiring. While wiring
is certainly an issue, a larger impediment is network configuration and
security. In the past data networks were the province of corporate
Information Technology (IT) gurus. As networking migrates to small
business and residential users it needs to be easy to set up and use. In
my experience wiring was only a small part of the overall equation. The
root problem is the amount of knowledge required to connect and configure
network components. Living with a LAN is kind of like owning an vintage
British sports car, when it works it is exhilarating but one must be
knowledgeable to keep it running.
Security considerations of small LANs are often overlooked. One should
not forget the same technology that allows access to millions of web sites
also allow millions more to attempt mischief. The is especially true of
wireless networks. Security is a multilevel discipline; one must protect
the client machine from viruses and unauthorized external connections
without interfering with legitimate use. Part of a well-designed security
system is Intrusion detection. This monitors unauthorized access attempts
before sensitive information is compromised. Seeing how often your network
is probed for weakness is a sobering experience.
I've described my experience in a series of reports posted on the Writings
page. It begins with a simple dialup network installed in 1998 and
documents how the network has evolved over time.
As Internet access becomes ever more important the role of first-mile
access providers becomes subject to regulatory scrutiny. Competition
between first-mile access providers is extremely limited. It does not
matter if nationally there are hundreds of Cable TV or Telephone Companies
if only one or two are available at your location. This places the
first-mile access provider in powerful position as gatekeeper opening the
specter of the Internet being converted from an open peer-to-peer
egalitarian network to a walled garden controlled by a few powerful
players.
The Internet is as revolutionary as the printing press. For the first
time in human history ordinary citizens are able to publish and distribute
their own creative works – sharing their views with others over the
Internet. Extreme low cost and ease of exchange threatens existing media
business models developed in an age of information scarcity and high
distribution cost. The Internet represents as dire a threat to these
business as did the automobile to horse transport a hundred years ago.
Legacy players are struggling to survive. They are attempting to placing
legal and technical limits on how this marvelous new technology is used in
a vain attempt to protect an obsolete business model.
The Writings page has several papers
exploring Internet policy implications for the future.