SD-WAN:
Evolution or Revolution?
Ivano Rondelli
Director, Network Services
NTT Communications
16th March, 2017
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NTT Group Global Coverage
over
$
95 Billion 280,000 85%
revenue in total
Global business outside
Japan amounts to $15
billion…
2 Billion
$
R&D investment
employees worldwide
…with presence in all
major continents…
87
in
countries
of
Fortune Global 100
…evaluated as #1 in
Customer Satisfaction *1
(196)
+
10,000
enterprise clients
*1: Ocean82, "Voice of the Customer: Global Data VPN, Issue 21"
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2
Use Case – a multinational biotech company
Challenges
Solution
Benefits
 Short lead-time – spin off in less
than 6 months
 Discovery consulting
 Delivery on time
 Managed Hybrid WAN infrastructure
 International procurement and
service delivery challenges
 SD-WAN overlay integrated with
various cloud-based functions:
 Full visibility from network
infrastructure level up to
applications performance
 Security risks (hacking)
 Limited resources and expertise
 Interoperability between existing
infra and next generation technology
 Uncertainties of how the new
company would operate, scale
• Secure Web Gateway (Internet
offload, Firewall, IPS, URL Filtering)
• IPsec Gateway
• SSL VPN
• UC
 Elasticity – infrastructure is able to
adapt to changing business
requirements
 Fully managed solution with
defined outcomes
 Web portal with third-party vendor
integration
 End-to-end managed SLA
 A biotechnology company that develops drugs to treat hemophilia
 Spin-off from a fortune 500 company
 400+ staff was to get sliced from the parent company within few months
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Use Case – a multinational biotech company
SD-WAN
MPLS
Data Center /
Private Cloud
Branch
Internet
Remote
Worker
Remote
Office
 Dynamic path selection
• Critical cloud application traffic rerouted if the main path degrades
• Other traffic is load balanced to maximize remaining bandwidth
 Local internet offload with cloud-based back up
 SSL VPN access for remote workers
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3 basic features and benefits in common
1
2
Aggregates
multiple types of
links
including MPLS and Internet.
This can provides enough
bandwidth for applications
with minimal connectivity
cost.
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3
Can be configured
and monitored
centrally
Can do intelligent,
dynamic path
selection
by taking the software-defined
concepts to the WAN.
This enables an easier and
faster process to deploy and
manage networks and
provides a holistic visibility of
applications.
by using algorithms based
on multiple factors such as
latency, packet loss, jitter,
etc.
This improves application
performance and end-user
experience.
5
Changes are driving SD-WAN adoption
Cloud
Applications
 Voice & Video
 UC
 Awareness
 SaaS
 AWS
 Storage
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Network
 Bandwidth
 Cost
 Network
Visibility
Security
 Security
Boundaries
 Internet
 Devices
Mobility & IoT
 Control
 Connectivity
 Proliferation
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 Gartner believes that, by the end of 2019,
30% of enterprises will use SD-WAN technology
in all their branches, up from less than 1% today.
[1]
 Furthermore, in IDC’s recent survey research,
70% of respondents say that they will adopt SDWAN in the next 18 months (in some form) [2]
[1] Gartner, “Market Guide for SD-WAN (ID:G00279081)”, December 2015, by Bjarne Munch, Sorell Slaymaker, Andrew Lerner, Neil Rickard
[2] IDC, “Worldwide SD-WAN Survey Special Report”, May 2016, by Rohit Mehra
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As SD-WAN grows, so is the choice of vendors
Pure Plays
Pivoting Vendors
Poised in the Wings
Incumbents
 Viptela
 Silver Peak
 Bigleaf
 Cisco
 Velocloud
 Talari
 Zerooutages
− iWAN (APIC-EM)
 Cloudgenix
 Citrix
 TeloIP
− iWAN (Tail F)
 Cybera
 VMware
− iWAN (Meraki)
 FatPipe
 Aerohive
− Cisco + Glue
 Riverbed
 128 Technologies
 Nuage
 Cradlepoint
 Cato Networks
 Versa
 Infovista/Ipanema
 Dispersive
 Brocade
 Ecessa
 CFN
 Oneaccess
 Barracuda
NFV-centric
 Aryaka
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Other Critical Players
 Z-Scaler
 Akamai
 Teridion
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Possible challenges enterprises may be over seeing
PERCEIVED BENEFITS
 Simplifies WAN management
 Application performance
 Transitioning to a new SD-WAN
environment
 Economical bandwidth
 Accountability of the network
infrastructure
 Integration with other network
 Optimized connectivity to cloud
providers
 Infrastructure dependent
 Security
 Immature technology
 Vendor lock-in
features
 Understand your applications
and how the flow in the network
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UNDERLYING CHALLENGES
11
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The SD-WAN is a collection of different functions
SD-WAN
MPLS
Internet
Wireless
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VNFs can be service chained to deliver the optimal outcome
Example :
SaaS
Provider
Ensure high performance
and secure access to
SaaS/IaaS
Orchestration
Network
Management
MPLS
vCPE
Legacy
Router
VNFs
Internet
Virtual CPE
Head Office
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Branch
Office
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Range of deployment models for SD-WAN and other VNFs
SDWAN
Security
Legacy
WAN
Accelerator
Implementing SD-WAN edge device:
• Replace existing router with a new box
VPN
(MPLS, Internet
or Hybrid)
On-premises
Model
(localized
virtualization)
Security
SD-WAN
VPN
vCPE
SD-WAN
Acceleration
VPN
(centralized
virtualization)
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(MPLS, Internet
or Hybrid)
Security
Cloud-based
Model
Hybrid
Model
Adding SD-WAN as VNF on CPE:
• VNFs hosted on CPE as software (installation
of physical appliance is not required)
• Upgrade of legacy CPE (routers) may be
required
• vCPE model
Acceleration
(MPLS, Internet
or Hybrid)
Security
SD-WAN
VPN
vCPE
(MPLS, Internet
or Hybrid)
Acceleration
Adding SD-WAN from the service provider’s
network edge:
• Basic switch/routing functions remain on
premises
• Reliability on the cloud and network
performance
•
•
Any of the above deployment models should
be able to be delivered as an Hybrid solution
SD-WAN and other VNFs placed wherever
performance and cost are optimal
15
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First, clarify your objectives

What do you want to achieve with the new technology?

What are the primary motivations for considering SD-WAN?

What does it take to execute, manage, measure, and positively
evolve best practices?

Does this service enhance the value of existing
investments and retain it moving forward?
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Case study – expected outcome
Our customer’s objective:
Support transformation and business growth by...
Fully outsourcing the procurement, delivery and management of the infrastructure
to have employees stay focused on strategic projects
service integration to ensure a functional and secure IT environment
gain full visibility to the network and applications to monitor and measure
outcomes
Deploy an elastic infrastructure capable to adapt to changing business requirements
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Takeaway
 SD-WAN is great but not as simple as it seems at first
 Unless you have dedicated IT staff with SD-WAN
and network expertise, look for a managed SD-WAN
 Think about what you want to achieve
 Define the right solution for your objectives
 Your needs go well beyond SD-WAN
 Whatever the solution, it should be able to easily
integrate with other functions to fit to your needs
now and tomorrow
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Thank you!
Ivano Rondelli
Director, Network
Services
NTT Communications
[email protected]
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