Wednesday, November 09, 2005

Breaking end-to-end design

The Chinese government, with the help of an American firm, is attempting to block VOIP traffic. Can you explain why they want to do that?

This is an example of putting "intelligence" inside the network, or breaking the end-to-end policy by which routers only route traffic, ignorning the content. (See our class note on the end-to-end design principle).