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Advancing LTE architecture with NFV and SDN

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My presentation at LTE MENA 2015 in Dubai. It was the last one before some 5G discussions and after some good introductions to the NFV/SDN topics from the mobile operator perspective so I decided to do a remake of my NFV/SDN Orchestration presentation to address the maybe unwanted effects that NFV and SDN could have in the LTE network architecture. At the end I had to cut a couple of slides because I only had 20 minutes. Here is complete.

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Advancing LTE architecture with NFV and SDN

  1. 1. Alberto Diez - alberto@posteo.net Advancing LTE Architecture with NFV/SDN
  2. 2. Alberto Diez – 2015 MNO survey about NFV/SDN 97% 93% 0% 20% 40% 60% 80% 100% Will you deploy? Infonetics Research: SDN and NFV Strategies: Global Service Provider Survey. March 2014 0% 20% 40% 60% 80% 100% Network optimization Multi-tenancy Operational efficiencies Commercial hardware Quick revenue Scaling up & down SDN NFV
  3. 3. Alberto Diez – 2015 NFV architecture Virtual Network Functions OSS/BSS NFV Orchestrator VNF Manager VNF EM VNF EM Virtualized Infrastructure Manager Network Functions Virtualization Infrastructure Management & Orchestration Infrastructure Applications Services
  4. 4. Alberto Diez – 2015 Doesn’t OpenStack do everything already? Network optimization Multi-tenancy Operational efficiencies Commercial hardware Quick revenue Scaling up & down  Nova (Compute)  Neutron (Networking)  Cinder (Storage)  Glance (Images)  Swift (Objects)  Ceilometer (Telemetry)  Heat (Orchestration)  Keystone (Id)  Horizon (Dashboard)
  5. 5. Alberto Diez – 2015 VNF (LifeCycle) Manager Network optimization Multi-tenancy Operational efficiencies Commercial hardware Quick revenue Scaling up & down Instantiation Initial Configuration Update Modification Scaling Termination PM/FM Templates/Catalogue IT vs Telco
  6. 6. Alberto Diez – 2015 NFV Orchestrator Network optimization Multi-tenancy Operational efficiencies Commercial hardware Quick revenue Scaling up & down Network Services (CRUD) Forwarding Graphs (CRUD) Multiple VNF Managers Multiple NFVIs Authorize VNF Manager Transactional Data driven Configuration/State/Data Multi-protocol/Multi-vendor OSS/BSS integration VENDORS
  7. 7. Alberto Diez – 2015 Which role does SDN play? SDN is to networking what NFV is to hardware Control Data Flows Switch Switch Switch Switch Switch Switch Switch SDN Controller
  8. 8. Alberto Diez – 2015 SDx is not OpenFlow Network optimization Multi-tenancy Operational efficiencies Commercial hardware Quick revenue Scaling up & down  All devices programmable via APIs  Standard declarative modeling  Configuration Management  Discovery / auto-onboarding  Relationships  Policy / Authorization
  9. 9. Alberto Diez – 2015 Forwarding Graphs & Service Function Chaining NFV SDN VNF3 VNF1 VNF4 VNF2 VNF1 VNF2 VNF3 VNF4
  10. 10. Alberto Diez – 2015 Group Policies & Intents LB LB LB LB Group of Loadbalancers •Allowances •Security policies •QoS policies Applications Network SDN Controller A : Intent to reach D Apply policy in A Create path A & B Create path B & D
  11. 11. Alberto Diez – 2015 Policy Control PCRF Real-Time Subscriber awareness Service awareness Gw Application awareness VNF4 VNF2 TDF SFCtag Orchestrator/ SDN Controller VNF3 Applications Network PCRF
  12. 12. Alberto Diez – 2015 Orchestration, SDN and Policy Control NFV Orchestration Policy Control SDN Scaling up & down Innovative use cases Time-to-Market Time-to-Market Operational Efficiencies Multi-Tenancy Network Optimization OSS/BSS SDx CM Automation SON UP/CP Separation OpenFlow Auth Complex! App Awareness Subscriber Aware Real Time Service Chaining APIs Scripts System models Service models Network models Configuration Run-Time flexibility Intents Topology
  13. 13. Alberto Diez – 2015 What if Open Source is the new standard? OpenFlow YANG TOSCA SFC
  14. 14. Alberto Diez – 2015 Effects of NFV/SDN  Scaling down  Manageability of larger amount of deployments  Support for different network setups  Higher personalization  ITification of telecommunications  Open Source increased pace of standards
  15. 15. Alberto Diez – 2015 Radio Access Network Verticalization of the NFV/SDN Core Network Core Network MVNO Apps Web Video IoT … Radio Access Network MVNOApps Web Video IoT … Core Network Core Network Core Network Core Network
  16. 16. Alberto Diez – 2015 Verticalization: Enterprise, Google FI & M2M MANO Telco Network BSS Onboard new enterprise With these policies 1. Reserve virtual resources 2. Instantiate new elements (PDN-Gw, PCRF) 3. Configure networking (SDN) 4. Configure new elements 6. Configure existing elements (DRA, SGw) 5. Provision policies MVNOs can use network sharing M2M can use dedicated cores
  17. 17. Alberto Diez – 2015 Core Network for Priority Core Network for Internet Core Network IMS Internet Net-neutrality backdoor? Voice Emergency Internet Internet Voice Emergency Internet Internet Priority Video Internet Priority VideoPriority Video S D N No difference As long as they go on different pipe… Out of control of MNO
  18. 18. Alberto Diez – 2015 Mobility & Personalization MyNetwork MyNetwork MANO migrate  Migrating VNFs to different clouds is still complex, it will require more orchestration  Use case: extreme personalization “One user, one core”
  19. 19. Alberto Diez – 2015 Network @ the RAN Core Core Core Services Services Services MANO  Deploying everything at the edge MNOs to operate low latency public data-centers near the RAN
  20. 20. Alberto Diez – 2015 Thank you! Takeaways MANO is key for NFV and SDN Operational efficient as top Orchestrator  New architectures to improve service Upcoming Trends Hybrid MANO: physical, VMs, Containers New business models for operators Linux distro business model for vendors alberto@posteo.net Report for download http://www.slideshare.net/AlbertoDiez4/

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