Lowering the Barriers to Innovation. Jennifer Rexford Computer Science Department Princeton University http://www.cs.princeton.edu/~jrex. Flash Back to 1984. Fast Forward to Today. How computers work Electrical engineering degree at Princeton Making multiple computers work together
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Lowering the Barriers to Innovation
Computer Science Department
How the Internet Enables Innovation
World Wide Web
Whenever possible, communications operations should occur at the end-points of a system.
With programmable end hosts, new network services can be added at any time, by anyone.
And then computers became powerful and ubiquitous….
What Does the “Dumb” Network Do?
Best-Effort Packet Delivery
IP over Avian Carriers was actually implemented, sending 9 packets over a distance of approximately 3 miles, each carried by an individual pigeon, and they received 4 responses, with a packet loss ratio of 55%, and a response time ranging from 3000seconds to over 6000 seconds.
Overcome network limitations
Run neat applications!
So, What’s the Problem?
(And where do I come in?)
Around 50,000 independent networks
How to manage a global federated network?