1. Sponsored by the National Science Foundation GENI SDN Offering Marshall Brinn, GPO GEC18: October 28, 2013

2. Sponsored by the National Science Foundation2 Outline Introduction Speakers: –Eric Boyd, Internet2 –Nick Bastin, Barnstormer Softworks Discussion: Planning to build the GENI SDN Offering

3. Sponsored by the National Science Foundation3 GENI’s SDN Offering to Experimenters GENI offers experimenters a “user-specified programmable WAN” capability –A collection of resources networked in a user-specified manner (links, subnets) –An ability to program the forwarding decisions for traffic flowing across this WAN –The traffic on this WAN is logically segregated from traffic on other such WANs (slices) –The traffic on this WAN is visible through standard network monitoring tools (e.g tcpdump) We want to make simple things simple, common things easy, and cutting-edge things possible.

4. Sponsored by the National Science Foundation4 Speakers Nick Bastin, Barnstormer Softworks –A Model for providing S/W switch-based programmable WAN for experimenters Eric Boyd, Internet2: –Current plans and expected features for I2 offering in support of GENI SDN offering

5. Sponsored by the National Science Foundation5 Uniform approach to SDN-enabled Topologies We seem to have two different approaches –An approach based on slicing H/W switches –An approach based on distinct S/W switches I want to advocate for a uniform approach, from an experimenter’s perspective –Much like other resource allocation, you ask for what you want and you get the resources that match that request If you want a H/W switch for your experiment, you should get a H/W configuration If you want to work e.g. with IPv6 or OF1.3+, you should get a S/W configuration If you don’t specify, you should get whatever is convenient and available for aggregates to provide

6. Sponsored by the National Science Foundation6 Configuration: End-to-End Programmability Agg A stitched topology of resources connected through the backbone network aggregate provides SDN controllability of all hops between edge aggregates. Backbone Network Agg

7. Sponsored by the National Science Foundation7 Configuration: Aggregate-internal SDN- enabled LAN Aggregate TOR VM-1 VM-2 Controller FV

8. Sponsored by the National Science Foundation8 Configuration: Edges ARE Hops Agg Consider all the edge aggregates as logically connected in a mesh. Any given topology is constructed from that mesh with intermediate OF-controllable hops at other edge aggregates.

9. Sponsored by the National Science Foundation9 Discussion: Moving forward I want to see both of these approaches move forward to fruition and be available to experimenters as soon as possible –What can we (the GENI community) do to make these available? –What the the critical roadblocks we should focusing on solving? –How do we transition from current meso capability to future SDN capabilities? –Is the notion of a uniform approach feasible and desirable? –When can we have prototypes of these different capabilities? What phasing of capabilities is possible (some soon, more later)