Another view of the Internet's fragility

Oct 04, 2005

The Internet may not be as vulnerable to centralized attacks as previously suggested, researchers in California reported Monday.

Researchers have built mathematical models of the Internet and used them to study the robustness of the system. One type of model, called a "scale-free" network, portrays the Internet as being unaffected by random component failures, but vulnerable to targeted attacks on highly connected hubs.

John Doyle and colleagues at the California Institute of Technology examined the abstract models and compared them with the organizing principles behind the Internet. They found that at the router level, the current Internet does not have most characteristics predicted by the scale-free models.

The authors also found technological, economic and mathematical reasons explaining why a functioning Internet could not be dominated by high-traffic hubs that render the entire network vulnerable to attacks.

The scientists propose a model involving optimization of tradeoffs under constraints.

"Understanding complex networks in technology and biology is increasingly important, since seemingly arcane aspects of their robustness and fragility are having greater impacts on everyone's lives," Doyle says.

The study appears in the online early edition of the Proceedings of the National Academy of Sciences.

Copyright 2005 by United Press International

Explore further: Form Devices team designs Point as a house sitter

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

Form Devices team designs Point as a house sitter

Nov 22, 2014

A Scandinavian team "with an international outlook" and good eye for electronics, software and design aims to reach success with what they characterize as "a softer take" on home security. Their device is ...

Man pleads guilty in New York cybercrime case

Nov 22, 2014

A California man has pleaded guilty in New York City for his role marketing malware that federal authorities say infected more than a half-million computers worldwide.

Dish restores Turner channels to lineup

Nov 21, 2014

Turner Broadcasting channels such as Cartoon Network and CNN are back on the Dish network after being dropped from the satellite TV provider's lineup during contract talks.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.