NFV & SDN Migration Challenges. Interoperability, co-existence and specific services as the drivers and opportunities for NFV & SDN migration

Transcription

1 NFV & SDN Migration Challenges Interoperability, co-existence and specific services as the drivers and opportunities for NFV & SDN migration

2 NFV Vision and Challenges Most major carriers have a vision for NFV and SDN transformation The road to NFV and SDN is going to be long, tough and expensive....key to all of this is going to be the availability of interoperable, interchangeable virtual network functions (VNFs) Light Reading, May

3 It s (Going to be) a Long Journey Source: AD Little / Bell Labs Reshaping the Future with NFV and SDN May

4 And it s Complicated Source: AD Little / Bell Labs Reshaping the Future with NFV and SDN May

5 Today s Reality NFV & SDN migration will take time Expect virtualised IMS by 2020 Operators expect vendors to be NFV-ready today Migration path in place NFV & SDN / legacy architecture must co-exist Not independent networks Heterogeneous networks with NFV and legacy elements, side-by-side Knowledge gap internally for operational transformation and adoption of new architecture and paradigm Fundamental reshaping of operator cost and skills base How do you make service perform as expected, end-to-end? They will span all parts of the network 5

6 Early Adoption Candidates New services and functional upgrades IMS / VoLTE But services such as VoLTE must span legacy and NGN networks Can deploy VoLTE in NFV but can t simply turn off 3G or other networks Old network infrastructure must co-exist with the new, virtualised network environments VoLTE promises much and MNOs have to deliver to obtain expected performance benefits and meet customer expectations Operational cost reduction Enhanced network efficiency HD quality 6

7 VoLTE Case: SRVCC Target UE Um/Uu Iu-cs/A UTRAN/GERAN MSC Server Iu-ps/Gb SGSN S3 Sv MME S6a HSS IMS UE E-UTRAN Uu E-UTRAN S1-MME S1-U S11 Serving/PDN GW SGi Source: 3GPP TS (R12) Bearer path before HO Bearer path after HO SIP signaling path before HO 7

8 NFV/SDN Orchestration and Assurance Service Assurance is critical Must be integrated with a complete Service Catalogue and Provisioning systems for both legacy and NVF / SDN based platforms such as OpenDayLight, OpenStack Neutron, Floodlight etc Data collection from both physical and virtualised network equipment, directly through SNMP and/or standard APIs Interoperability goal and challenge Problem Handling is more complex with multiple stakeholders providing the end-toend solution to the end customer Directly affects the quality of service experience. 8

9 NFV/SDN Orchestration and Assurance That s where NetVision comes in NetVision is a complete range of OSS service assurance solution delivering superior customer experience and SLA compliance. Seamless integration With legacy tools, providing a cost-effective upgrade to deliver full visibility and control of network performance and operations for both legacy & virtualized environments. Databases, RESTful APIs, file import / export Interoperable NetVision Aggregation Gateways are responsible for the integration of NetVision with SBI systems (EMS, NMS, SDN Controllers, routers, SWs, etc) enabling a complete multi-technology and multi-vendor environment for network and service management NDI (NetVision Data Integration) functions for integration with external OSS/BSS systems 9

10 SDN/NFV Orchestration and Service Assurance Over-the- top, end-to-end orchestration of network services and virtualised network functions based on business/operational rules. Spanning legacy and NFV infrastructure Event, performance, capacity, SLA monitoring & management across the entire ecosystem. Over-the-top and consolidated service views integrating NFV/SDN world with other services. 10

11 NFV/SDN Orchestration and Assurance NetVision enables management of NFV/SDN and legacy infrastructure Monitor, assure and orchestrate the whole virtual & physical infrastructures allowing : E2E intelligent event management, performance and capacity along with integrated real time service level and smart service desk management; Problem handling & incident management across the board; Service catalog & provisioning integration and orchestration; Holistic service views and dashboards integrating NFV/SDN along with legacy networks; Integration of isolated NFV/SDN controllers at same or different domains; Traffic engineering. Interface with OSS/BSS - NetVision Aggregation Gateways & NDI NBI/SBI Rest/SOAP and SQL APIs; File import & export; SNMP native. 11

12 NetVision Unified Portal Service Assurance and Orchestration End-to-end service management SLA management Service inventory Digital services catalogue Data acquisition Event correlation Data consolidation and intelligence Availability Open Data / APIs Information presentation Service Desk for operations Service A Service B Service C 12

13 Conclusion NFV / SDN migration is inevitable Unless you build a network from scratch, you will have to manage both legacy and NFV framework for some time to come Must ensure service delivery and performance across all domains Early adoption candidates too expensive for wholesale migration VoLTE is a clear example of persistence of legacy with NFV / SDN Must assure, orchestrate and deliver service end-to-end NetVision optimised to support migration, deployment and costreduction 13

14 Thank you Questions?