summary:This paper discussed the service model related issues in the future internet in which the multimedia application is thought to be very popular. The author gave us the goal of the network design which is to maximize the performance of the applications. Based on this goal, the author defined a simple utility function. Through analysis, we are told that multiple service classes will work better than single "best effort" service. This paper discussed lots of different design options of future internet: "implicitly supplied" versus "Explicitly requested", "overprovision or not", "admission control or not" and etc.
Some thoughts:after i read the paper, nothing impressed me. but anyway i should have something in my brain. Any problems:
1, is the utility function too simple? is it really correct to get some conclusion based on that?(although the author said it is nonrigorous)
2, the paper was published in around mid 90. Is there anything in the paper coming true in our current internet?
3, Facing the emergence of new applications, when is the suitable time to think about changing network design?
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