Communications of the ACM
Internet Architecture Is at Odds With Its Use
Nodal representation of the Internet.
Visualization by Shai Carmi, Shlomo Havlin, Scott Kirkpatrick, Yuval Shavitt, and Eran Shir
The network architecture of the Internet has not evolved to better match the way people use the Internet, according to Jarno Rajahalme at Aalto University's Department of Computer Science and Engineering.
The Internet network should find the content desired by end users, but only a fraction of traffic is intended to be exchanged between specific network elements anymore, Rajahalme says. Commercial activity and competition have determined the present structure of the Internet.
Internet architecture and traffic is the focus of Rajahalme's doctoral dissertation, and he modeled different ways to deliver packets across inter-domain links. Rajahalme notes that it is often beneficial for network owners to handle multiple copies of individual packets than to try to optimize by reducing inter-domain traffic redundancy. The overall network load might decline, and every domain would be able to decide locally which way to forward the packets is the most profitable. The topology of the Internet could be used to allow the network itself to decide the best routes to transmit information, Rajahalme says.
From Aalto University
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Abstracts Copyright © 2012 Information Inc., Bethesda, Maryland, USA
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