acreo – future work pontus sköldström. where are things moving? sdn interesting sdn applications...
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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? • [email protected], [email protected]• [email protected]• [email protected]
• Thanks for listening!