how sd-wan is changing the design and technology of the wan · the design and technology of the wan...

How SD-WAN is Changing the Design and Technology of the WAN

Laurence AndrewsCushman & Wakefield

@laurence_uk

Agenda

- Who are Cushman & Wakefield

- Recent Integration Activity

- Our Shift to Internet & SD-WAN

- How we are Deploying SD-WAN

- Technical Challenges

Cushman & Wakefield | WAN Summit London 2017

Key Statistics

CUSHMAN & WAKEFIELDIDEAS INTO ACTIONCushman & Wakefield is a leading global real estate services firm that helps clients transform the way people work, shop, and live.


Global Offices and Country Coverage300 Offices in 70+ Countries


Core Services & SectorsTargeted expertise through specialty practices

CORE SECTORSAirports & PortsAutomotiveBanking/Financial ServicesData CentersEducationEnergy (Oil & Gas)Food & BeverageGovernmentHealthcareHigher EducationHospitalityIndustrialLandLegal/Professional ServicesLife Sciences/PharmaMulti-familyNet Lease Investment ServicesNot-for-ProfitResidentialRetailTechnology

CORE SERVICES


The Cushman & Wakefield Journey

Recent Integration Activity


Recent Major M&A Integration


Immediate Term

• Essential Connectivity

• One Network

• Established Standards

• WAN Inventory

Integration Approach

Longer Term

• Improved Performance

• Consolidated Data Centers

• Standardized Tooling

• Optimized WAN Services

• Simplified Environment

Network Technologies


• Application Access• Managing Service Providers• Consistent Branch Experience• Real Estate Changes• Network Performance• Network Availability

Challenges Faced During Integration


Shift to Cloud Applications

On-Premise Services


State of the NetworkOne Network Established

IPVPN

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IPVPN IPVPN

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IPVPN

IPVPN IPVPN

Moving to SD-WAN and Internet


• Cost of Service• Deployment Speed• Improved Performance• Local Ownership of Service• Geographically Local Egress• Simplified Environment• Service Portability • Visibility into WAN Traffic

Why Shift to SD-WAN and Internet Connectivity?


• Independent Assessment of our WAN Environment

• Identification of Key Locations• Confidence in our Business Case• Network Service

Recommendations• Provider Expectations

Engagement with TeleGeography


Adopting Internet Connectivity

• Varies by Market & Geography• Internet can be more Expensive• SLAs vs Cost vs Bandwidth• Some Providers Still Prefer MPLS

• SDWAN Enables Control• Savings are Possible!

What we Learned

SD-WAN Implementation


SD-WAN ImplementationImplementation Approach

Step 1 Step 2 Step 3 Step 4

Assess• Technical Survey• Plan WAN

Changes• Deployment

Challenges• Scheduling• Conflicting

Initiatives


SD-WAN ImplementationTypical WAN Architecture

Prior State




Assess• Technical Survey• Project WAN



Initiatives

Deploy• Ship Hardware• Implement• Build SD-WAN

Overlays• Monitor


SD-WAN ImplementationPost-Deploy Phase Logical Configuration

SD-WAN Deployed


SD-WAN ImplementationPost-Deploy Phase Logical Configuration

Overlays Built




Assess• Technical Survey• Project WAN



Initiatives

Deploy• Ship Hardware• Implement• Build SD-WAN

Overlays• Monitor

Optimise• Analyse Traffic• Provision New

WAN• Fine Tune SD-

WAN Policies

Decommission• Retire Legacy

WAN• Communicate

Improvements


SD-WAN ImplementationPost-Optimise Phase Logical Configuration

Hybrid State


SD-WAN ImplementationPost-Optimise Phase Logical Configuration

Overlays Built

Technical Challenges


SD-WAN ImplementationTechnical Challenges

Supporting Mixed State Deployment


SD-WAN ImplementationTechnical Challenges

IPVPN

IPVPN

IPVPN

IPVPN

IPVPN

IPVPN

IPVPN

Regional SD-WAN

Regional SD-WAN

Regional SD-WAN

Global I/C SD-WAN

Overlay Size

Future Expectations


SD-WAN ImplementationFuture Expectations

Internet Only


SD-WAN ImplementationFuture Expectations

SD-WAN Network

Simplified Global Network

Laurence AndrewsCushman & Wakefield

@laurence_uk

Q & A

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