The document discusses how SD-WAN and NFV can help evolve networks to better support cloud applications. Traditional networks were designed for centralized applications but cloud applications now take indirect routes, hurting performance. SD-WAN uses virtualization to provide dynamic routing of traffic over multiple access types based on application needs. NFV allows virtual network functions like firewalls and WAN optimization at the network edge. This improves application performance and security for cloud-based traffic. Case studies show how SD-WAN and a software-defined cloud fabric can optimize traffic routing and access to cloud applications.

1. EVOLVING THE WAN FOR THE
CLOUD, USING SD-WAN & NFV
Carl Kotze
Senior Manager, EDP Product Specialist, Interoute

2. Key Topics
Evolving the WAN for the Cloud, using SD-WAN & NFV
What is SD-WAN &NFV
Benefits of NFV and SD-WAN for application centric networks
Real-world implementations
Virtualization and other trends

3. Traditional WAN
Complete Control
Low latency connectivity ensured
application performance
Designed to deliver applications
centrally
Security is controlled
and enforced centrally.
Internet
Office
Office
Office
Data Centre
Remote Users
Production site
WAN

4. Virtualisation
Evolving the WAN for the Cloud, using SD-WAN & NFV

5. NFV

7. T R DE N S

8. Cloud Adoption
WAN for the cloud age
As applications move to the cloud,
traffic can take an indirect route,
resulting in poor performance.
Traditional networks were designed to
deliver applications from a central data
centre, with low latency from each site.
Internet
Office
Office
Data Centre
Security policy is
controlled and
enforced centrally.
WAN
Production Site

9. Cloud Adoption
The Impact on Application Traffic
Data Centre
User Location
SaaS

10. 3.11
1.95
1.63
1.50 1.44 1.41 1.39 1.38 1.37 1.36
1Mbps 2Mbps 3Mbps 4Mbps 5Mbps 6Mbps 7Mbps 8Mbps 9Mbps 10Mbps
4.0
3.7
3.4
3.2
2.9
2.6
2.3
2.0
1.7
1.5
1.2
1.0
0.8
240ms 220ms 200ms 180ms 160ms 140ms 120ms 100ms 80ms 60ms 40ms 20ms 0ms
Above a certain value, increasing
bandwidth has little impact on
improving application
performance.
Reducing latency has a significant
impact on improving application
performance.
Network latency impact on SaaS application performance
HTTP page load times (seconds) on a 60 ms latency link
HTTP page load times (seconds) on a 5 Mbps link
Source data: Mike Belshe. Google white paper. “More bandwidth doesn’t matter (much)”

11. 4.0
3.7
3.4
3.2
2.9
2.6
2.3
2.0
1.7
1.5
1.2
1.0
0.8
240ms 220ms 200ms 180ms 160ms 140ms 120ms 100ms 80ms 60ms 40ms 20ms 0ms
HTTP page load times (seconds) on a 5 Mbps link*
Western Europe to US East coast (6000 km)
Cloud Latency Challenges
Lower latency, faster applications
Typical latency
for cloud fabric
connections
80 ms
Typical latency for
local ISP
connections
160+ ms
Cloud fabric delivers lower latency
connections and higher throughput.
Vast majority of cloud applications delivered
from the USA, with high latency.
*Based on Interoute ISP network latency data and Mike Belshe. Google white
paper. “More bandwidth doesn’t matter (much)”
Cloud applications are 2x faster than many
ISP services*.

12. Cloud Adoption
Infrastructure Thinking
Increasing the distance between
the user and the application.
Traditional networks with Cloud
Services as an afterthought.
Internet
Office
Office
Data Centre
WAN
Production Site

13. Interoute Edge
Interoute Edge Access optimises access to all applications in the data centre and the cloud.
With Interoute Edge, SaaS
traffic is sent securely and
directly to the application.
Office
Office
Data Centre
Bandwidth to the data centre
is not consumed by internet
traffic.
Security policy is pushed to the
edge but is centrally managed.
Cloud Fabric
Cloud Fabric services both private
WAN and public internet.
Production Site

14. Edge Security
SD-WAN
Connectivity
Containers
Virtual
Appliances
Virtual
Machines
Cloud
Connections
Internet
Access
Private
Networks
Virtual Data Centre
Global IaaS platform
Edge
Software defined WAN & NFV
Application
Acceleration
Cloud Fabric
Software defined global network
Block Storage
Enterprise Digital Platform
Object
Storage
Hybrid
Networking
SDN Core Edge Compute
The Enterprise Digital platform is entirely software
defined from customer site to virtual datacentre.
Our unique cloud fabric binds together the virtual data
centre and network edge.

15. Global, Software Defined, Cloud Fabric, IaaS & SD-WAN

16. Connect and prioritise with any access type
Cloud Fabric
4G
Internet
Fibre
Ethernet/DSL
Interoute
Edge
Dynamic path control routes and optimises
traffic on the optimal, best performing path for
the application.
Our SD-WAN approach enables cost vs
performance and SLA optimisation across all
access.

17. Cloud Fabric
WAN
Internet
Interoute Edge
One device, multiple functions
Edge CPE
IP Routing
IP QoS
CloudFabricConnect
High
Availability
Compression
De-duplication
Caching
WANOptimisation Firewalling
IPS
Anti-X
NextGenFW
Hybrid
Networking
Application
Performance
Monitoring
Application
routingSD-WAN
Service
Chaining
LAN
AES 256

18. Interoute Edge
Reliable and Secure
Network QoS works with
existing traditional CPE
Application based routing Path independent
packet re-assembly
Data is encrypted with
AES 256
Direct Cloud Fabric Integration
156
234
3456 2 1
E
D
G
E
4G
Fibre
LAN
Billing
ERP
CRM
Assured
Expedited
Discard Eligible

19. Interoute Edge
Security
Centralised local security policy
management and reporting
Firewall, IPS, Anti-X Protection
from inbound threats
Remote access to DMZ
and LAN-side workloads
3 6 1
Office
Cloud Fabric

20. Cloud Fabric
Faster access to your applications
We control the network
and use fastest path routing
The world’s largest clouds
are on our backbone
VDC IaaS in the core of
your network
We can connect any
site by any access
Direct Cloud Fabric Integration
VMs Containers
Block storage Object storage

21. SD-WAN Cloud Gateways
Abstraction of underlying networks and NNI limitations
Evolve 3rd party provider
networks in-term to hybrid SD-
WAN.
Integrate multiple networks
into one logical domain,
regardless of service provider.
Frictionless, de-risked migration of
provider networks supporting
agility including M&A activities.
3rd Party Provider
AsiaPac
3rd Party Provider
Europe
Cloud Fabric
VDC
VDC
Frankfurt
NFV Node
Security
Policy

22. Enterprise Digital Platform
VDC
VDC
VDC
VDCVDC
Cloud Fabric
Private Network
VDC
VDC
3rd Party Colo/PoPColo
Connect your
offices with
Interoute Edge in
132 countries.
Build hybrid solutions,
catering for legacy, on-
premises and cloud.
Deploy physical devices with
sub-millisecond latency to
VDC in 33 colocation sites.
Connect your
existing data for
free at over 300
locations with
Interoute Connect.
Connect to 3rd
party clouds over
low latency links.
Unique Hybrid cloud integration of all your IT
One
Bridge
Communicate,
conference and
collaborate with
unified
communications &
One Bridge

23. • Subhead 3-4 words only
• Core PoP with resilient
Cloud Fabric connectivity
• Local peering
• Virtual Data Centre IaaS
node
• Edge gateways
• Virtual machines
São Paulo
Platform Expansion Build
ANALYST CONFIDENTIAL

24. • Core PoP with resilient
Cloud Fabric connectivity
• Local peering
• Virtual Data Centre IaaS
node
• Edge gateways
• Virtual machines
Sydney
Platform Expansion Build

25. Key takeaways
The WAN is evolving from an infrastructure focus to an
application-centric design to take advantage of cloud
based services.
Reliable and manageable latency is essential for
reliable applications. Using “any internet connection”
comes with significant risks.
An SD-WAN strategy needs robust security at the
network edge and often benefits from WAN
optimisation. Together this is well suited to virtualised
x86 based CPE.

26. Talk to our team or visit our website
www.interoute.com