1. Sponsored by the National Science Foundation Software Defined Exchanges (SDX) Panel discussion Chip Elliott GENI Project Office www.geni.net

2. Sponsored by the National Science Foundation2GEC 23 SDX Panel – June 2015www.geni.net Panelists Jim Chen, StarLight Russ Clark, SOX / Georgia Tech Ruslan Smeliansky, ARCCN / Moscow State U. Tom Lehman, MAX / University of Maryland Marshall Brinn, GENI Project Office

3. Sponsored by the National Science Foundation3GEC 23 SDX Panel – June 2015www.geni.net “Networking” SDX – connectivity / routing –Layer 3 (IP) – e.g., connect AS’s –Layer 2 (Ethernet) – e.g., multi-domain circuits –SDN – connect SDN islands “Cloud service” SDX – with compute/storage –Connect SDI islands –Compute / storage / network / instruments –GENI as an early instance Layer 3 BGP / Policies Layer 2 Ethernet circuits SDN Multi-domain Software Defined Infrastructure A range of SDX ideas and use cases What does “SDX” mean ?

4. Sponsored by the National Science Foundation4GEC 23 SDX Panel – June 2015www.geni.net What does a Virtualized Meet-Me Point look like? Physical Meet-Me Point (Colo) Bring your own equipment Cages keep us physically separate VM Virtualized Meet-Me Point Bring your own VMs Multi-tenant (slicing) keeps us separate VM 4 Software Defined Infrastructure !

5. Sponsored by the National Science Foundation5GEC 23 SDX Panel – June 2015www.geni.net Software Defined Exchanges (SDXs) SDI SDX Shared Resource Provider A Shared Resource Provider B Shared Resource Provider C A “meet me” point for services, e.g., BGP in one slice, Ethernet circuits In another, CDNs in a 3 rd, etc. Key research areas: federations, authN/Z, policy logics, cross-domain visibility, etc. VM BGP IDSCDN VM

6. Sponsored by the National Science Foundation6GEC 23 SDX Panel – June 2015www.geni.net FIX CIX NAP NGIX –MAN LAN GOLE For me, next sequel started with Nick Feamster’s talk at the NITRD SDN workshop (NSF, Dec 2013) Interdomain exchange points are critical elements in effecting any large-scale network transformation Technical Economic Political Courtesy Steve Corbato We’ve seen this movie before…

7. Sponsored by the National Science Foundation7GEC 23 SDX Panel – June 2015www.geni.net Some questions for the panelists What is the approach that you have taken, or want to take, for building an SDX? Given that no one agrees on exactly what an SDX is, it is important to understand each other's definitions What is the function of your SDX ? What is the architecture and design of your SDX ? What are the envisioned applications that it enables ? What APIs are adopted in your SDX ?

8. Sponsored by the National Science Foundation8GEC 23 SDX Panel – June 2015www.geni.net Some broader questions What new capabilities can we create with SDXs ? (content distribution, security, instrumentation, peering control,...) What key research issues arise with SDX’s ? What are the timelines for SDX’s (prototyping, operations, inter-operation) ? How can we best combine a period of “thousand flowers” innovation with the need to interoperate between SDX’s ?

9. Sponsored by the National Science Foundation9GEC 23 SDX Panel – June 2015www.geni.net Let’s start with short talks Jim Chen, StarLight Russ Clark, SOX / Georgia Tech Ruslan Smeliansky, ARCCN / Moscow State U. Tom Lehman, MAX / University of Maryland Marshall Brinn, GENI Project Office