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The History and Evolution of SDN

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Salim Mehta outlines Cisco's approach of SDN

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The History and Evolution of SDN

  1. 1. ACI – A Policy Driven Infrastructure for the Intercloud World Salim Mehta Technical Architect Cisco Systems The History & Evolution of SDN 27 August 2015
  2. 2. Evolution of IT www.gartner.com/imagesrv/cio/pdf/cio_agenda_execsum2014.pdf IT Industrialization DigitalizationIT Craftsmanship Speed, Innovation and Conventional Control, Predictable, Low Risk Functional Operationally Focused
  3. 3. Moving to Webscale IT Self Service MTTR Light IT (1 x Admin: 150K servers) Few Applications (Customer Focused) Applications Built for Cloud Super Highly Skilled Workforce Set the Standard Clean Slate Approach Request and Wait MTBF Heavy IT (1 x Admin: 500 servers) Many Applications (Customer and Internal Focused) Applications Built for ERP Highly Skilled Workforce Follow the Standard Legacy / Historical Today Spend Time Save $ Spend $ Save Time
  4. 4. Moving to Webscale IT Self Service MTTR Light IT (1 x Admin: 150K servers) Few Applications (Customer Focused) Applications Built for Cloud Super Highly Skilled Workforce Set the Standard Clean Slate Approach Tomorrow Spend Time Save $ Spend $ Save Time Self Service Automation Cloud Cloud Capable Applications Software Defined Networking BiModal IT DevOps Fast IT Private Cloud
  5. 5. SDN 1.0 - OpenFlow VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM Box by box mgmt
  6. 6. SDN 1.0 - OpenFlow VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM OpenFlow Controller
  7. 7. SDN 1.0 - OpenFlow VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM Controller Control Plane Data Plane
  8. 8. SDN 1.0 - OpenFlow VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM Controller Availability? Scale?
  9. 9. SDN 2.0 - Separate Overlay Controller VM VMVM VM VMVM VMVM Underlay
  10. 10. SDN 2.0 - Separate Overlay Controller VM VMs on same DVS VMVM VM VMVM VMVM No correlation between overlay & underlay
  11. 11. SDN 2.0 - Separate Overlay Controller VM VMVM VM VMVM VMVM Two Points of control! Physical Hosts? Diagnostics? VMVM VM
  12. 12. SDN 3.0 - Application Centric Infrastructure DB Tier Storage Storage Application Client Web Tier App Tier Application policy model Policy instantiation VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM Integrated Underlay Distributed Control Plane APIC
  13. 13. SDN 3.0 - Application Centric Infrastructure DB Tier Storage Storage Application Client Web Tier App Tier Multiple isolated virtual networks VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM Any Hypervisor APIC
  14. 14. SDN 3.0 - Application Centric Infrastructure DB Tier Storage Storage Application Client Web Tier App Tier VM VMVM 10.2.4.7 VM 10.9.3.37 VM 10.32.3.7 VMVM Virtual & Physical Hosts APIC Single Point of controlVM VM Advanced telemetry for application traffic visibility
  15. 15. How we deliver infrastructure with policy… Storage WEB APP DB LAN LAN LAN LAN SAN LBFW LAN Connectivity Security QoS SLA Services PolicyConfiguration Point
  16. 16. Policy Driven Data Centre Define the Application Communication Policy Provision the Policy into the Fabric (Fully Automated) SecurityNetwork Virtualization Application Cloud Policy Framework Invest Time Spend No Time
  17. 17. NETWORKSECURITYCOMPUTE STORAGE OPERATIONSIMPLEMENTATIONARCHITECTURE DESIGN BEFORE AFTER Organisational Shift TECHNOLOGY SILOS VIRTUAL TEAMS NETWORK UC / VIDEO X-aaS
  18. 18. Bimodal IT http://www.gartner.com/newsroom/id/1923014
  19. 19. How Business Consumes IT Compute Network StorageSecurity ITClients Pools of Infrastructure Resource Compute Network StorageSecurity Cloud
  20. 20. Orchestration & Automation Resource Controllers Infrastructure Pool of Infrastructure Resource PSC UCSD How Developers Consume IT Compute Network StorageSecurity Cloud Open Daylight PNSCUCSM APICVMM Storage Controller API API API API API API
  21. 21. Fast IT Data Centre & Cloud Reference Architecture OpenIntegration MANAGEMENT AUTOMATION POLICY SECURITY ECOSYSTEMPARTNERS UCS Director Openstack UCS Manager Application Policy Infrastructure Controller Converged Infrastructure Managers OpenDaylight Virtual Machine Manager Process Orchestrator 3rd Party Orchestrator IaaS PaaS SaaS ITaaS Intercloud Prime Services Catalogue ORCHESTRATION SERVICES AUTOMATION PORTAL INFRASTRUCTURE MANAGEMENT Stack Designer Intercloud Fabric
  22. 22. Key Takeaways SIMPLE SIMPLIFY your infrastructure and INTEGRATE across silos SMART CREATE intelligent capabilities and SERVICES that fuel growth SECURE DEFEND against ATTACKS and mitigate THREATS dynamically Programmatic Interfaces Orchestration and Automation Centralized Control Fast IT
  23. 23. Thank you.

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