Acreo – Future work

Acreo – Future work

Pontus Sköldström

Where are things moving?

SDN

Interesting SDN applications

Support more technologies

Improved controller designCross-layer optimization

SDN applications

SDN

Interesting SDN applications

SDN applications – BGP free core

• Complicated to configure

• Complicated to manage

• Expensive devices

SDN applications – BGP free core

• Apply SDN!• Similar to demo, but BGP• Single BGP node• Cheap devices• RouteFlow projecthttp://cpqd.github.com/RouteFlow

SDN applications – BGP free core

• Lots and lots of entries • Can we reduce the memory

requirements?

SDN applications – BGP free core

• Normally, full forwarding tables everywhere

• What if we split the forwarding table and distribute it?

SDN applications – BGP free core

• Cleverly split the forwarding table into multiple pieces• Install to switches, add tunnel magic• Dramatic reduction in memory• Slight increase in delay

Where are things moving?

SDN Improved controller design

Improved controllers - Abstraction

• Earlier we mentioned abstractions, but how?• Abstract a whole network to a single node

• Scalability, simplicity• Combine nodes into one

• Grow single nodes, “super-nodes”

Improved controllers - Abstraction

• Need something similar as in the BGP free core example

• But how can we do it for full OpenFlow rules?

Where are things moving?

SDN

Support more technologies

Support more technologies - Opto

• Basic support for Optical nodes more or less done• Simple wavelength setup• Not a big gain compared to existing systems

• What if we add support for basic monitoring (e.g. BER)• Much simpler with the SDN approach• Detect degradation, reconfigure network

• Add support for modifying physical parameters (like modulation)• Tune network based on monitoring input• Again, the SDN approach makes it easier

• More physical parameters!• Tune modulation format, spectral width, based on current demand

Where are things moving?

SDNCross-layer optimization

• Highly reconfigurable link technologies (both opto and radio)• More dynamic routing schemes

• How can we combine these to optimize for:• Latency, throughput, energy efficiency?

Cross-layer optimization

The end!

• Any of this sounds interesting? • We’re looking for partners, e.g. FP7 call 11 in Spring 2013

• Any questions? • Pontus.skoldstrom@acreo.se, Anders.gavler@acreo.se• Wolfgang.john@ericsson.com• Elisa.bellagamba@ericsson.com

• Thanks for listening!