SDN and NFV. Stepping Stones to the Telco Cloud. Prodip Sen CTO, NFV. March 16, 2016

Transcription

1 SDN and NFV Stepping Stones to the Telco Cloud Prodip Sen CTO, NFV March 16, 2016

2 The Evolution of SDN and NFV 2

3 The technology journey: convergence of the SDN & NFV stages NFV phase 0 Decouple NFV phase 1 Virtualize NFV & SDN phase 2 NFV & SDN phase 3 Cloudify Decompose SDN phase 0 Decouple SDN phase 1 Interconnect We are starting to cloudify in NFV Need to accelerate the convergence We are starting to interconnect in SDN 3

4 Realizing the full business benefits of NFV using SDN Proprietary hardware network function Solutions based on virtualized network functions Distributed solution based on flexible VNF deployments VNF C1 VNF B VNF A2 VNF B2 Programmable Network Infrastructure VNF A1 VNF D1 Dumb physical pipes Dumb virtual pipes Smart virtual network infrastructure

5 SDN for NFV Flexibility Apps Programma bility of the network Agility SDN Controller Dynamicity of connectivity Manageab ility Analytics & Automatio n Loose coupling between the overlay and Scalability Controller federation Multidomain

6 Fat vs. fit VNFs Thick/fat VNFs Virtual implementations of physical functions Complex multiservice configurations Integrated load balancing, high availability, AAA IF Scale in and out internal to VNF Drawbacks Complex to implement, integrate, and test Elasticity is difficult to implement Slow rollouts, long time to revenue Move common functions to the infrastructure Thin/fit VNFs (apps) Single-service atomic network functions In-network load balancing, high availability Single interface to AAA Scaling by adding network function instances Advantages Simple integration and testing Elasticity by simple integration with orchestration Fast rollouts, short time to revenue 6

7 The Business Value of SDN enabled NFV 7

8 SDN enabled vgi-lan solution P-GW Optimizer Content Filter FW NAT Internet Challenges All functions sized for peak Slow new service deployment PCRF Virtualized, but no SDN Separate load balancers needed per function P-GW PCRF Optimizer ContexNet Controller Content Filter FW ContexNet Switching Fabric NAT Internet Virtualized With SDN Advantages No need to send all traffic through all devices no overprovisioning Agility add new services without affecting other services 8

9 Service agility with HPE ContexNet PMO Total: 139 days for a New Service Launch with PMO 1 month About 1 month per service 15 days 15 days 20 days About 45 days could be complex and usually manual S1 = Service 1 S2 S3 Si Service Evaluation Groups to assess idea Resource Capacity Scaling (Policy Controller, Hardware) Billing Policy and Gi LAN Configuration Catalog Creation Service Creation New Service Launch ContexNet About 1 day per service (fewer decision makers needed) 5 days 15 days 2 days 20 days 1 day Total: 44 days for a New Service Launch with ContexNet 9

10 SDN-enabled virtualized Gi LAN The need to optimize Gi LAN capacity utilization The need to be able to launch and try new services with minimal risks The need to offer highly personalized services What challenges does it address NFV implementation enables matching capacity expansion to revenue growth SDN enables easy plug and play of new service functions into the Gi LAN and service path SDN enables policy integration to create scalable per user/per application traffic flows And how HPE Carrier SDN solutions to optimize NFV implementations Copyright Hewlett Packard Enterprise

11 SDN-enabled mobile packet core HSS S6a PCRF Without SDN Challenges Traffic growth pattern putting pressure on the gateway MME Increasing active/idle signaling load S1-MME S11 Gx Increasing peak throughput load Traffic composition changing enb S1-U IP Network S-GW P-GW SGi Central Gi PDN Video upload & download increasing Emerging applications need lower latency and/or local only connectivity Private LTE networks, IoT apps HSS S6a MME S11 S-GW-C P-GW-C Gx PCRF With SDN Advantages Independent scaling of user and control planes Capability to break out traffic S1-MME SDN Controller enb S1-U S/P-GW-U S/P-GW-U SGi Central Gi PDN IP Network Local Gi

12 vepc split solutions 1. Simple split 2. Distributed user plane APN-based local breakout 3. Per-flow selection between central and distributed Gi-LAN Control Plane Control Plane Control Plane Core User Plane Gi-LAN User Plane Gi-LAN User Plane Gi-LAN Backhaul Backhaul Backhaul Backhaul Gi-LAN Gi-LAN Edge User Plane User Plane RAN Specific APNs are broken locally to Mobile Edge Requires preconfiguration Dynamic handling of same APN traffic based on application context Copyright Hewlett Packard Enterprise 2016

13 SDN-enabled mobile packet core Exploding EPC capacity Unpredicted quality of experience Latency-sensitive applications Desire to develop two-sided business models What challenges does it address SGW/PGW control/user plane separation Per-flow apportioning of user-plane instances Distributed mobility management, processing, and service continuity Policy integration, SFC, and capability exposure And how HPE Carrier SDN solutions to optimize NFV implementations Copyright Hewlett Packard Enterprise

14 The Evolution of SDN, NFV and Open Innovation 14

15 The evolution of SDN, NFV, & open innovation Open innovation 2013 Network functions virtualization NFV ISG Software-defined networking NFV ISG Open innovation Network functions virtualization 2015/6 Software-defined networking How important is SDN to NFV? Very important: 69% Somewhat important: 30% Not at all important: 1% (Customer Survey 2015) OSM, Open-O. 15

16 Open source and ecosystems pathways to the Telco Cloud OPNFV Release Brahmaputra Overview Orchestration and Management Compute Virtualization Control Virtual Network Functions Data Plane Acceleration DPDK Storage Virtualization Control OpenStack Infrastructure Pharos Community Labs OPNFV Bare Metal Labs Network Virtualization Control KVM Ceph OpenDaylight ODP OpenContrail ONOS OVS Compute Storage Network Upstream Project Collaboration Alignment Alignment Installers Scenarios Testing Functional System Performance Testing, performance and SDN integration in the new OPNFV release New Features Fault Mgmt IPv6 SFC L3VPN Reservation Continuous Integration / Continuous Deployment Documentation Customer Engagements NFV SDN 28 PoCs Ongoing 17 PoCs Completed 11 3 PoCs Ongoing HPE OpenNFV Ecosystem PoCs Completed Partner Engagements Partners NEPs 70+ Application partners 10 Technology partners 16