SDN Network virtualization, NFV & MPLS synergies

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My keynote session about SDN Network Virtualzation & NFV for the MPLS and Ethernet 2013 World Congress in Paris - March 2013.

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SDN Network virtualization, NFV & MPLS synergies

  1. 1. Network Virtualization Hector Avalos Dir. Business Strategy & Programs Hector.Avalos@Ericsson.Com© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 1
  2. 2. ›  Software Defined Networking ›  Network Openness ›  Network Programmability ›  Enable innovation & fast introduction of new network functionality ›  Application-aware Networking ›  Enable synergies between Applications and the Network through APIs ›  Service Provision Agility thru Automation ›  Orchestration of applications, services & network provisioning›  Network Functions Virtualization (NFV) ›  SW-based service delivery using commercial off-the-shelf HW ›  Use distributed processing & storage ›  Enable service elasticity: on-demand and pay per use services© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 2
  3. 3. ›  SDN is an emerging architectural concept that encompasses: ›  Network programmability, ›  Unleashed service innovation, ›  Service-driven networks ›  There is no common agreement yet among industry players about what SDN is ›  Two major perspectives: ›  ONF ›  IETF© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 3
  4. 4. ›  Network Virtualization is a key benefit of SDN – Enabled by decoupling the control and forwarding plane›  Network Virtualization was generally referred as Virtual Private Networks›  Is there any difference between VPNs & SDN Network Virtualization? – If so, are they complementary?© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 4
  5. 5. VPN A VPN B Site 1 Site 2 Shared VPN B VPN A Site 1 infrastructure Site 2 VPN C VPN C Site 1 Site 2›  VPNs – A virtual private network is a closed user group constructed over a shared infrastructure – Virtual: not a separate physical network – Private: independent addressing and forwarding tables ›  Allows addressing overlapping ›  Ensure secure isolation between different VPNs - Network: could be either L2, L3 or both – Policies are key—global connectivity is not the goal ›  Network connectivity could be P2P, P2MP and MP2MP© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 5
  6. 6. without ›  Hypervisor virtualizes the server, decoupling VMs from the server VM 1 VM 2 VM 3 HW and allowing – Optimization of server resources – Operational simplicity – Operational speed Hypervisor Server HW ›  Limitations – Single tenant support ToR DC Switch – Constrained VM placement – Restricted VM mobility© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 6
  7. 7. with VM 1 VM 1 VM 1 VM 2 VM 2 ›  Network Virtualization through a virtual switch – Decouples network services from HW Virtual Switch ›  Overlay network represented as a Hypervisor distributed switch fabric – Allows multi-tenancy Server HW ›  Maximizes server efficiency -  Increases VM density ToR DC Switch – Enables VM placement and mobility anywhere© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 7
  8. 8. VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM 1 1 1 2 1 1 2 1 1 2 1 1 2 VM VM VM VM 2 VM VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM 1 1 2 1 1 2 1 1 2 1 1 2 VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM VM VM 1 VM VM 2 VM 1 1 1 2 2 1 1 1 2 2 1 1 1 2 2 1 1 1 2 2 vSwitch vSwitch vSwitch vSwitch vSwitch vSwitch vSwitch vSwitch Hypervisor Switch Virtual Hypervisor Switch Virtual Hypervisor Switch Virtual Hypervisor Switch Virtual Hypervisor Hypervisor Hypervisor Hypervisor Server HW Hypervisor Server HW Hypervisor Server HW Hypervisor Server HW Hypervisor Server HW Server HW Server HW Server HW Server HW Server HW Server HW Server HW ToR DC Switch ToR DC Switch ToR DC Switch ToR DC Switch Network Controller›  Network Virtualization decouples network services from HW –  Overlay network with control plane, data plane and management plane decoupled© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 8
  9. 9. Customer A Customer B Customer C VM VM VM VM VM VMOrchestration Network VM VM VM VM VM VM VM VM VM Controller Controller ToR DC Switch ToR DC Switch ToR DC Switch ToR DC Switch ›  Network Virtualization decouples network services from HW –  Overlay network with control plane, data plane and management plane decoupled –  “Slices” the network in virtual distributed ‘fabrics’ –  Enables delegation of administration of virtual network services © Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 9
  10. 10. Customer A Customer B Customer C VM VM VM VM VM VMOrchestration Network VM VM VM VM VM VM VM VM VM Controller Controller Virtual Virtual Virtual Fabric Fabric Fabric Slice Slice Slice ToR DC Switch ToR DC Switch ToR DC Switch ToR DC Switch ›  Network Virtualization decouples network services from HW –  Overlay network with control plane, data plane and management plane decoupled –  “Slices” the network –  Enables delegation of administration of virtual network services –  Enables automated network services provisioning using the same model as Cloud Service provisioning © Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 10
  11. 11. ›  SDN/DC Network Virtualization and MPLS VPNs –  Provide private networking over a shared infrastructure ›  Independent addressing and forwarding tables ›  Allows addressing overlapping ›  Ensure integrity, security and privacy for each Closed User Group (VPN) –  Implement destination MAC/IP address forwarding paradigm ›  Allows Policy Based Forwarding›  SDN/DC Network Virtualization –  “Slices” the network –  Enables delegation of administration of virtual network services –  Enables automated network services provisioning using the Cloud Service provisioning model –  Fast provisioning of new services –  Data plane path could be globally “defined” for Network Functions (i.e VMs) processing through SDN Network Programmability© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 11
  12. 12. Classical Network Appliance Approach Message CDN Session Border Router Controller Orchestrated, automatic & remote install. DPI Firewall Carrier Grade NAT Standard High Volume ServersSGSN/GGSN PE Router BRAS Standard High Volume Storage WAN Tester/QoE Standard High Volume Radio Network Acceleration monitor Ethernet Switches Controller © Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 12
  13. 13. VM 2 Orchestration Network VM VM Controller Controller 1 3›  Network Functions / In-Line Services Chaining is achieved through data path programmability ›  The global forwarding data path for specific flows can be centrally provisioned ›  Network-wide policy based forwarding ›  Flows can be steered to a specific set of VMs (‘Network Functions’) for processing within a predefined order© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 13
  14. 14. NF2 Orchestration DC Network NF1 NF3 Controller Controller Cluster Cluster Data Center Internet MSER Aggregation IP Edge›  SDN data path programmability allows in-line chaining of distributed Network Functions›  Enables service elasticity, agile provisioning and pay per use© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 14
  15. 15. VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM Service Provider Data Center A Service Provider Data Center B›  Service Providers can leverage their MPLS VPN infrastructure to extend services across the WAN –  Thru CPE or vCPE (Software-based CPE as VM)© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 15
  16. 16. Orchestration DC Network MPLS VPN Controller Controller Controller VM VM Cluster Cluster Cluster VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM Service Provider Data Center A Service Provider Data Center B›  Service Providers can leverage their MPLS VPN infrastructure to extend Cloud services across the WAN –  Thru DC GW PE implementing ‘SDN/DC Overlay Networking’ functionality ›  Customers can automate WAN network services provisioning using the Cloud Service provisioning model© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 16
  17. 17. Orchestration DC Network MPLS VPN Controller Controller Controller VM VM Cluster Cluster Cluster VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM Service Provider Data Center A Service Provider Data Center B›  The MPLS WAN could also be ‘sliced’ using SDN architectural principles –  Decouple control plane, data plane and management plane –  In addition to this, the services plane (Network Functions) could also be decoupled ›  Customers can automate network and network function services provisioning using the Cloud Service provisioning model© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 17
  18. 18. ›  Network virtualization is transforming Data Centers – Enabling ‘Network as a Service’ – Programmatic control of compute, storage and network resources – Maximizes resource usage efficiency – Changes the operational model›  SDN allows to achieve these outcomes›  Synergies between DC Network Virtualization and Service Providers MPLS networks – Increases flexibility and service velocity›  Requires open/standard northbound, southbound and east/west interfaces© Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 18
  19. 19. © Ericsson AB 2013 | PA IP & Broadband | Hector Avalos | MPLS & Ethernet World Congress – Paris, March 2013: Analyzing the SDN Impact | Page 19

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