THE FUTURE INTERNET

TFI2014 Denver Colorado

You are here…

Is this the future?

SDN Falls

Decentralized

Centralized

Decentralized

You are here

Where do we go from here?

C≤1/R

Impossible!

THERE IS NO SILVER BULLET FOR COMPLEXITY

WE NEED TO RETHINK FAILURE DOMAINS

Wish you were here…

WE NEED TO SEPARATE POLICY FROM REACHABILITY

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WE NEED TO RETHINK OUR MODELS

WE’RE NOT GOING TO SOLVE DIFFERENTIATION

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THE NETWORK STILL ISN’T FREENever underestimate the bandwidth of a station wagon full of tapes hurtling down the highway.Andrew S. Tanenbaum

WHAT WILL THE INTERNET LOOK LIKE?

●“Messy, as always”

●SDNs will be overhyped and overplayed

●Back in the real world, SDNs will have an impact●Some complexity will be moved from distributed control planes into

centralized control planes

●Failure domains will be reshaped

●Policy will be separated more cleanly from reachability

●But none of these are going to be…●Done in the way we expect

●As “clean” as we might expect

PERSONAL SCALE THOUGHTS

●The command line will become less important

●Theory and principle will become more important

●Coding skills will become the norm