sdn, network virtualization, and the right abstraction

Scott Lowe, VCDXEngineering ArchitectNetwork & Security Business Unit, VMware, Inc.

SDN, Network Virtualization, and the Right Abstraction

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Before we get started

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Your name is familiar...

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Virtualization in networking isn’t new

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§Virtual LANs (VLANs)§Virtual private networks (VPNs)§Virtual routing and forwarding (VRF)§MPLS§SPB/PBB/QinQ§Virtual device contexts (VDCs)

So why are we talking aboutnetwork virtualization?

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Looking at compute virtualization

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§Multiple forms of virtualization existed in x86-based computing before VMware§ 80386 “protected mode”§ Virtual memory§ Application virtual machines (e.g., JVM)§ Remote presentation (X Window System)

§These were all important developments, but...

None of them had the power to change the operational model.

How compute virtualization changedwith VMware

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§VMware introduced a new abstraction: the virtual machine (VM)

Why is the VM important?

§The VM abstraction encompassed other virtualization technologies, but enabled operational change

§Operational change enabled customers to address pain points (speed of provisioning, for example)§ Now users could easily create VMs, destroy VMs, clone

VMs, start/stop/pause VMs§ VMs encouraged more standardized configurations

§Success encouraged adoption; adoption encouraged ecosystem development (positive feedback loop)

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So what does this have to do with network virtualization?

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A plethora of networking technologies are out there

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A plethora of networking technologies are out there

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Merchant silicon

OpenFlow

Northbound APIs

Open vSwitch

Network overlays

SDN

SDN controllers

OpenStack Networking

Fabrics

STT

VXLAN

NVGRE

SR-IOV

TRILL

LISP

What’s needed is the right abstraction

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§The right abstraction—the virtual network—lets us change the operational model

§Changing the operational model brings benefits:§ Greater speed and agility§ Lower operational overhead§ Decreased capital expenditures§ But...it’s really about greater speed & agility

VMware NSX provides the right abstraction—the virtual network—to

enable operational change that addresses pain points and meets

business needs.

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Looking a bit deeper at VMware NSX

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Questions & Answers

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Thank You

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