Prayson Pate's presentation at SDN World Congress outlined how virtualization can take SD-WAN to the next stage.

1. SD-WAN 2.0:
Building a Better SD-WAN
SDN World Congress
World Forum, The Hague, Netherlands
Wednesday October 12, 2016

2. © 2016 ADVA Optical Networking. All rights reserved. 2
Q: Why Is SD-WAN Hot?
A: MONEY!
SD-WAN can provide enterprise VPNs at a
lower cost point than today’s provider MPLS
VPNs
$

3. © 2016 ADVA Optical Networking. All rights reserved. 3
MPLS VPN Versus Broadband Pricing
Source: “Why does MPLS
cost so much more than
internet connectivity?”
As we saw when covering why
the NEW architecture will
happen MPLS is typically
priced at $300 - $600 per
Mbps per month for the
copper connectivity typically
deployed at all but the very
largest enterprise locations,
while the monthly price of
broadband connectivity is
now $1.50 - $15 per Mbps
per month.

4. © 2016 ADVA Optical Networking. All rights reserved. 4
More on Pricing
Prices vary around the
world, but DIA is
always less expensive
than VPN
Source: “Enterprise Networks Price – Benchmarks and Trends” – Greg Bryan, TeleGeography

5. © 2016 ADVA Optical Networking. All rights reserved. 5
It’s Not Just Pricing!
Other issues with today’s MPLS VPNs:
• Slow to install and provision
• Slow adds/moves/changes
• Lack of application-level visibility and control

6. © 2016 ADVA Optical Networking. All rights reserved. 6
Why Not Use Broadband for VPNs?
Higher loss
Lower reliability
Lack of security
Shared, best-effort bandwidth
Required management of
routing for VPN

7. © 2016 ADVA Optical Networking. All rights reserved. 7
What Is Software-Defined WAN (SD-WAN)?
SD-WAN is an integrated solution to enable the augmentation or
replacement of MPLS VPNs with an overlay network using lower-cost
broadband connections
SD-WAN solutions typically provide embedded
routing and firewall capabilities, policy-based
flow routing and in some cases, WAN
optimization
SD-WAN today consists of two parts:
• A central controller, often hosted in cloud
• Access nodes deployed at access sites

8. © 2016 ADVA Optical Networking. All rights reserved. 8
SD-WAN Controller
The central controller:
• Provides the command and control aspects of SD-WAN
• Can run on the user’s site or hosted in the cloud
The controller normally includes these capabilities:
• Acting as a repository for configuration of the access nodes
• Administering the network topology
• Setting and distributing policies for QoS and access
• Reporting usage and performance

9. © 2016 ADVA Optical Networking. All rights reserved. 9
SD-WAN Per-Site Access Nodes
May be implemented as an appliance or a VNF on a server and
include many or most of the following functions:
• Zero-touch commissioning
• Routing and tunneling engine
• Hybrid WAN
• Firewall and security
• QoS and access policy
• WAN optimization
• Network loss and latency measurements

10. © 2016 ADVA Optical Networking. All rights reserved. 10
SD-WAN Benefits
• Lower cost for VPNs
• Access flexibility and redundancy
• All-in-one solution
• Policy-based control
• Works over a variety of media

11. © 2016 ADVA Optical Networking. All rights reserved. 11
Current SD-WAN Limitations
• SD-WAN is standalone
• SD-WAN is monolithic
• SD-WAN couples service and technology
• SD-WAN implementations are large
• SD-WAN is a pure overlay technology
• SD-WAN is user-managed

12. © 2016 ADVA Optical Networking. All rights reserved. 12
SD-WAN 2.0: The Next Step
Evolve SD-WAN by leveraging foundation of virtualization, NFV
and SDN. Improvements over SD-WAN:
• Scalable: Implemented as components using VNFs or containers
• Network-focused: Supports underlay and overlay models
• Flexible: QoS measurements decoupled from policy
• Modular: Enables service providers to continue to select best-of-
breed components for routing, firewall, DPI, etc.
• Extensible: Platform available for innovative services
• Managed: Designed to enable operators to offer as a part of managed
services

13. © 2016 ADVA Optical Networking. All rights reserved. 13
MPLS
VPN
Internet
Headquarters
Branch 2
Branch 1
Branch 3
Gateway SD-WAN 2.0
Branch 4
SD-WAN 2.0
PE
PE
L3VPN
L3VPN
Broadband
SD-WAN 2.0
Orchestration and control
Customer
portal
PE VNF
SD-WAN 2.0 Architecture
Maps between IP-VPN and tunnels
Gateway into cloud services
(IP-VPN & IPSec tunnels)
NFVI – data center
VNF
VNF
VNF
VNF
Centralized
network
functions
Distributed
network
functions
Application-aware
flow steering
• Virtualization and SD-WAN
• Network and overlay protocols
• Single service order integration
• Pure-play software

14. © 2016 ADVA Optical Networking. All rights reserved. 14
Characteristic SD-WAN SD-WAN 2.0
Topology Overlay Overlay or peered
SD-WAN Versus SD-WAN 2.0
Characteristic SD-WAN SD-WAN 2.0
Topology Overlay Overlay or peered
Ownership and
management
End-user End user or operator with user portal
Characteristic SD-WAN SD-WAN 2.0
Topology Overlay Overlay or peered
Ownership and
management
End-user End user or operator with user portal
Construction Monolithic Constructed from micro-services
Characteristic SD-WAN SD-WAN 2.0
Topology Overlay Overlay or peered
Ownership and
management
End-user End user or operator with user portal
Construction Monolithic Constructed from micro-services
Deployment Tied to service Open platform for service innovation
Characteristic SD-WAN SD-WAN 2.0
Topology Overlay Overlay or peered
Ownership and
management
End-user End user or operator with user portal
Construction Monolithic Constructed from micro-services
Deployment Tied to service Open platform for service innovation
Performance
assurance
Monolithic Decoupled and available for SLAs
Characteristic SD-WAN SD-WAN 2.0
Topology Overlay Overlay or peered
Ownership and
management
End-user End user or operator with user portal
Construction Monolithic Constructed from micro-services
Deployment Tied to service Open platform for service innovation
Performance
assurance
Monolithic Decoupled and available for SLAs
Value driver Lowest cost Platform for dynamic and flexible managed services

15. © 2016 ADVA Optical Networking. All rights reserved. 15
Summary
• SD-WAN is good, but it has limitations
• SD-WAN 2.0 provides an evolution of SD-WAN that
addresses these gaps and fits into an NFV/SDN architecture
• For more info, please see “SD-WAN 2.0: Evolving to a
Complete Solution”

16. Thank You
IMPORTANT NOTICE
The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or
implied. ADVA Optical Networking shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental,
consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation.
Copyright © for the entire content of this presentation: ADVA Optical Networking.