SDN is Tomorrows Reality

The brutal reality of SDN is that it's still coming. We've got pieces of the technology but you won't get what you need for a year, probably two. Here is why.

Transcript

1. PacketPushers.net SDN is Tomorrows Reality but you’ll love it when it gets here CloudCamp London 20130424
2. PacketPushers.Net About Me •Host of Packet Pushers Podcast •“Cloud Plumber” at Canopy Cloud Cloud Network Architect, Office of CTO ( Division of Atos ) •Blog - EtherealMind.com •NetworkComputing.com (http:// networkcomputing.com/blogs/author/Greg-Ferro) •Slides: speakerdeck.com/etherealmind 2
3. PacketPushers.Net What is SDN ? •Replace the Network Driver with a “Network Agent” •Replace the “vSwitch” with “Network Agent” •Build Overlay Network with tunnelling protocols 3
4. Physical Network 4
5. SDN Network 5
6. PacketPushers.Net Why SDN ? •Software configurable networking •Automated deployment •Automated change 6
7. PacketPushers.Net Networking is in my way •A Network is SINGLE SYSTEM •every element is interconnected to another in the LAN or WAN or both. Rebooting a device might/could take down the whole network •distributed, self healing, eventual consistency •Shared Risk / Failure Domains 7
8. PacketPushers.Net SVR MPLS/WAN RTR Internet RTR FWL FWL SVR SVR SVR SVR SVR SVR DC Network Today 8
9. PacketPushers.Net MPLS/WAN RTR Internet FWL FWL SVR SVR RTR FWL FWL FWL FWL RTR RTR RTR SVR SVR FWL FWL SVR SVR SVR SVR SVR Physical Network Services Cloud Networking 9
10. PacketPushers.Net SDN Networking • BILLING NETWORK SERVICES • Use XX small network appliances instead of 1 HA pair of physical devices • Distribute complexity, reduce failure impact • more complex network design • You MUST deploy / build automation & monitoring to manage complexity 10
11. Controller Networking 11 East West LAN Switches Network SDN Controller OpenFlow Quantum/OpenStack Configuration Controller Orchestration Controller Northbound SDN Northbound SDN Southbound SDN North/South LA
12. PacketPushers.Net Disruption Resistance • Vendors - market disruption • SDN moves networking services into the “vSwitch” - process disruption • Build an OVERLAY Network - design disruption • Network & Server integrated - organisational disruption • Technology will take 2 years to mature 12
13. PacketPushers.Net SDN Vendors •Real Products ‣ BigSwitch Networks ‣ NEC ‣ Midokura •“Shipping” ‣ Nuage Networks (Alcatel/Lucent) ‣ Contrail (Juniper) ‣ VMware/Nicira •Still Working on It ‣ Cisco (multi-product, multi-strategy) 13