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Managing and Implementing Network Function Virtualization with Intelligent OSS

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All about SDN/NFV developments within the Telecommunications sector. BSS/OSS evolutions and a drive towards intelligent IT systems.

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Managing and Implementing Network Function Virtualization with Intelligent OSS

  1. 1. NFV/SDN: Managing and implementing Network Function Virtualization with intelligent OSS By Michiel Nuytemans OSS Consultant, Comarch Comarch Telco Brunch, Brussels, Friday October 23rd
  2. 2. Copyright Comarch 2015 NFV SDN evolution 1/3: No virtualization in the network Data Center EPC PDN eNodeB eNodeB RAN eNodeB App App SGW PGW App VIP
  3. 3. Copyright Comarch 2015 NFV SDN evolution 2/3: Virtualization in the network - NFV Data Center EPC PDN eNodeB eNodeB RAN eNodeB AppvPGWvSGW BBUBBU vBBU App AppPGWSGW SGW PGW eNodeB VIP
  4. 4. Copyright Comarch 2015 NFV SDN evolution 3/3: Network nodes as micro-data centers
  5. 5. Copyright Comarch 2015 NFV - BSS/OSS OSS – traditional role Real-time OSS - part of NVFIOSS for SDN ETSI Ref Arch - Comarch OSS
  6. 6. Copyright Comarch 2015 SDN – BSS/OSS SDN architecture – vision
  7. 7. Gi-LAN vs. Mobile Edge Computing based services
  8. 8. Copyright Comarch 2015 Gi-LAN Services
  9. 9. Copyright Comarch 2015 Mobile Edge Computing
  10. 10. Copyright Comarch 2015 Gi-LAN vs. MEC EPC Gi-LAN eNodeB RAN eNodeB vPGWvSGW SGWBBUBBU vBBU PGW PGWSGWDPI SGW PGW Video Optimizer DPI DNS DPI DPI App... Video Optimizer Video Optimizer DNS DNS eNodeB eNodeB Not virtulized RAN eNodeB eNodeB Not virtulized RAN Backhaul aggregation SGW PGW DPI Video Optimizer DNS VIP VIP Video Optimizer DNS App App VIP
  11. 11. Copyright Comarch 2015 Network as distributed Cloud: Gi-LAN vs. MEC Benefits • Services are deployed „in the network” not on MEC or in Gi-LAN • Dynamic, policy-driven decision to allocate resources either at: • Edge, close-edge, core, (Gi-LAN) • Dynamic MEC Service capabilities creation – no „hardcoding” • MEC capabilities creation is to be perceived as NFV functions instantiation at the edge • Ability to de-allocate MEC from overloaded „edge” • Offloading „edge” for applications less sensitive for „network latency” • „Edge” can be dynamically re-allocated to „aggregation” (close edge) • These dynamic decision are taken based on „virtualized” real-time OSS Better customer experience at lower costs
  12. 12. VPN-based services for enterprise customers. Service chaining, orchestration
  13. 13. Copyright Comarch 2015 VPN example – traditional implementation
  14. 14. Copyright Comarch 2015 How to implement services? NFV-centric approach: Firewall example • Firewall as VNF hosted by NFVI • SDN forwards packets to/from Internet via port with an accessible vFirewall • The ‚main’ functionality is implemented in vFirewall SDN approach: CPE Router example • vCPE implementation split into:  Control plane: vCPE_CP SDN controller applications • Manages Flow entries of OFP Switches leveraging Network Topology from OSS Network Inventory  Data Plane – flow entries at OFP Switch at customer premises – move closer to the customer • Simple packet forwarding based on packet header • Controlled by vCPE_CP • The ‚main’ functionality is implemented by controller applications affecting the traffic flow
  15. 15. Copyright Comarch 2015 VPN – based on SDN and NFV
  16. 16. Copyright Comarch 2015 VPN – access to business applications and Internet
  17. 17. Copyright Comarch 2015 VPN – implementation details CPE: Control Plane – SDN controller applications Firewall as VNF on NFVI CPE: Data Plane – Flow entries in OFP Switch
  18. 18. Copyright Comarch 2015 VPN – catalog-driven fulfillment class Domain Objects «CFS» VPN «CFS» SiteManagedLAN - IPSubnetwork :int «CFS» SiteAccess - bandwidth «CFS» BusinessApplications - IPAddress - MAC «CFS» Host - MAC - IPAddress «CFS» InternetAccess «CFS» Firewall RFS Firewall «R» vFirewall «R» VM «RFS» SiteAccessFlow «R» CPE_OFPSwitch «R» PE_OFPSwitch «R» OFPSwitchFlowEntries «R» OFPSwitch_FlowEntries «RFS» InternetAccessFlow «R» InternetGateway
  19. 19. Copyright Comarch 2015 VPN – access to business applications and Internet 1. Enterprise Customer, issue and order for an extra Business Application at Site2
  20. 20. Copyright Comarch 2015 VPN – Fulfillment example 2. The customer order updates data in Network and Service Inventory
  21. 21. Copyright Comarch 2015 VPN – Fulfillment example 3. Network is „reprogrammed” based on data -> Data flows are updateda 3 3 3 3 3
  22. 22. Copyright Comarch 2015 VPN – Service Assurance example
  23. 23. Copyright Comarch 2015 VPN – Service Assurance example
  24. 24. SDN / NFV QUIZ
  25. 25. Copyright Comarch 2015 1. What is a driver for Mobile Edge Computing? a) There is a need for low-latency, high-bandwidth applications b) It is cheaper to deploy applications in the edge then in a datacenter c) There is a need for decentralizing the computing to provide high-availability applications
  26. 26. Copyright Comarch 2015 2. What is Openflow? a) An algorithm to perform network routing optimization b) A platform architecture designed to manage an SDN network c) A standardized protocol used to configure SDN routers
  27. 27. Copyright Comarch 2015 3. What is the role of OSS systems in SDN / NFV environment a) An SDN / NFV environment does not need OSS functions b) OSS systems need to support legacy infrastructure and network c) OSS systems can be used to manage both the physical and virtual network resources
  28. 28. Thank You michiel.nuytemans@comarch.com

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