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
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?