SDN & NFV Day @ITB

Software Defined NetworkingEueung Mulyana

http://eueung.github.io/talks/sdnnfv21/03/2016 | Attribution-ShareAlike CC BY-SA

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Outline

This Event

SDN & NFV - Short Introduction

What Should I Remember About SDN?

SDN Today

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SDN & NFV - Short Introduction

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SDNSoftware De ned

Networking

NFVNetwork Function

Virtualization

What - Why - How

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Evolution of

Server vs. Network

Provisioning

1996-2013

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SDN ModelSpecify Behaviour

Compile to Topology

Transmit to Switches

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TheTransformation

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Pre-NFV

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NFV

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NFV Use CaseVirtualization of

Evolved Packet Core

(Cellular CoreNetworks)

What Should I Remember AboutSDN?

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SDN is merely set of abstractions for control plane

Not a speci c set of mechanisms

OpenFlow is only an implementation of the SBI in SDN concept

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SDN involves computing a function

NOS handles distribution of state

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SDN involves computing a function on an abstractnetwork

Can ignore actual physical infrastructure

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Network virtualization is the "killer app"

Already virtualized compute, storage; network is next

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SDN TodaySome Cases & Issues

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Networks have changed a lot in the last two decades, and wecan only expect the evolution to continue as our world becomesmore connected. And SDN is no longer just a buzzword forthings to come. It is real and happening as we speak.

Many organizations all over the globe and ofall sizes are deploying SDN. Why?

The simple answer is - because they have to.

In order for companies to meet their customers' changing needsand deliver new services, they must have strong networks thatwork at the speed of today's business.

Internet of Things (IoT)

Networks are facing a tipping point with the growth ofmobile data and the need to simultaneously operate overmultiple transmission technologies, especially wireless.The rise of IoT means that networks will inevitably behandling an in¯ux in big data and an increase in networktraþc.

5G Connectivity

With 5G networks, the needs of a wide variety of devicesand applications will be met so that IoT service providersor enterprises will not need to worry about the details ofthe network or radio technologies involved.The variety of these devices and applications requires ahighly ¯exible infrastructure, with its behavior dynamicallyprogrammed by software (hence SDN).

Ref: Dan Pitt @ ONF

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AT&T is aiming to have 30% of its network virtualized this year(2016) and 70% by 2020. That's quite the timeline. "Why soaggressive?"

"Survival," was Donovan's immediate answer, noting that it isn'tjust advantageous to be pursuing a virtualization strategyseemingly so quickly -- it's "absolutely necessary," he added.

"Let me remind you that's just the WAN.. In our traditional ITenvironment, which we don't have any more, in our targetarchitecture there, we are already 60% in the cloud and at theend of the year we will be at 80%. So we are marching into thecloud in every dimension in everything we do, as quickly as wecan."

Ref: Telco Transformation

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".. putting more HW at the network,just isn't the answer, you can't scalequickly & cost-e!ectively. It's simplynot sustainable.."

"Because there is no army that canhold back an economic principlewhose time has come"

Networks on Demand:

6 Months from Idea to TrialsBusiness as Usual -> LowAutomation -> Weeks forProvisioningHigh Automation -> Minutesfor Provisioning

Refs

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Refs1. Scott Shenker, The Future of Networking and the Past of Protocols2. Nick McKeown, Stanford University, Many Talks/Articles3. Jennifer Rexford, COS 597E, Princeton University4. Guido Appenzeller, Network Virtualization in Multi-tenant Datacenters,

VMware5. SDN Today for Tomorrow's Network6. Telco Transformation

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ENDEueung Mulyana

http://eueung.github.io/talks/sdnnfvSDN & NFV Day @ITB | Attribution-ShareAlike CC BY-SA

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