THE BRAINS OF THE NEW GLOBAL NETWORK

VIRTUALIZINGREAL-TIME COMMUNICATIONS

Ray Tseng, VP APAC Sales Apr 2016

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NFV OVERVIEW

Acknowledgement: Andy Reid, BT

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WHY ADOPT AN NFV STRATEGY

Lower capex Commodity compute / switching hardware No more end-of-life events for network appliances

Lower opex Software-based deployment of network functions Automated operations such as repair and scaling Vastly simplified spares / hardware replacement process

Reduced time to market for new services No hardware approval process Rapid prototyping

Acceleration of innovation Easy access to broader eco-system of innovative software vendors

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OPERATOR ADOPTION

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“AT&T plan to have virtualized 80% of their core network by 2020” – Andre Fuetsch VP Architecture & Design

Ambitious, far-reaching high budget operators

Pragmatic, started but cautious

Wait and seePace of implementation

VARIETIES OF NETWORK FUNCTIONS

Control Plane Functions

IMS Core

IMS App Server

Media Gateway Controller

Diameter Routing Agent

Policy Charging & Rules Function

SBC (Signaling)

User Plane Functions

Content Delivery Network

Deep Packet Inspection

WAN Accelerator

Firewall

Evolved Packet Core

SBC (Media)

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IT CLOUD PERFORMANCE SUITABILITY FOR NFV

Control plane functions work just fine We have demonstrated very large scale IMS core working well in a

public cloud environment

User plane functions are more demanding Hypervisor / vSwitch per-packet overhead presents challenges Standard IT cloud is (just about) practical and economical for functions

like SBC media processing Data plane acceleration solutions can make a huge difference

Testing of Perimeta SBC with 6WIND on KVM achieved 90% of bare metal performance on media session capacity

Control plane functions and compute-intensive user plane functions are best early candidates for NFV

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ORCHESTRATION IN NFV

Orchestration is concerned with managing the life cycle of virtualised network functions Service deployment Health monitoring Dynamic elastic scaling Software upgrade

Orchestration can deliver some valuable benefits Faster service provisioning Opex reduction

The value delivered by orchestration depends heavily on the nature of the virtualised network function (VNF) VNFs that have steady load can be usefully deployed with manual

scaling – greatly simplifies deployment

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VMWare vs. OpenStack

Most widely deployed cloud software

Majority of telcos already using VMware for IT

Stable and offers lots of management features

Perceived as expensive

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Open source cloud solution attracting all the buzz

Unlike VMware it is not a product, it is an ecosystem Many packages, each distributor

has a different flavor Software maturity issues Challenging to manage, e.g. no

hitless software upgrade

BT OnePhone service lets customers handle all calls - mobile or office -

through mobile phone

BT needed to deploy new SBCs to enable launch of OnePhone service; encumbent SBC vendor required a 3-months lead time to deliver

Metaswitch Perimeta vSBC Within 2-days: deployed Perimeta software

in BT’s existing VMWare-based data center +3-days: BT operations team takes over +½-day: BT team deploys Geo-Redundant +10-days: Completed 130 acceptance tests,

ready for service launch

CASE STUDY: VIRTUAL SBC

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Manx Telecom UK fixed-line & wireless provider (>50k lines)

Deployment details: Replacing legacy IMS core which provided residential PSTN services Deploying Metaswitch’s Clearwater Core, Perimeta, SAS, AGCF Retains some elements of existing solution that weren’t EOL

Alcatel-Lucent HSS Alcatel-Lucent ISAMs for copper pair termination

Deployment flexibility to re-use existing components Reduced cost of migration

CASE STUDY: NFV IMS FOR PSTN

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Launched September 2015 NFV: Real technology, Real benefits

NFV is real Production deployments already in carrier

networks Control plane applications

Best Virtual Network Functions to initially target VMWare is the pragmatic choice for near-

term NFV deployments OpenStack NFV will get there long-term

Many of the key benefits of virtualization can be realized without Orchestration

KEY TAKEAWAYS

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