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1. INTRODUCTION
The software-defined wide-area network (SD-WAN or SDWAN) is a specific
application of software define network(SDN) technology applied to WAN
connections such as broadband internet, 4G, LTE, or MPLS. It connects enterprise
networks — including branch offices and data centers — over large geographic
distances.
A WAN might be used, for example, to connect branch offices to a central corporate
network, or to connect data centers separated by distance. In the past, WAN
connections often used technology that required special proprietary hardware. SD-
WAN, on the other hand, utilizes the internet or cloud-native private networks. SD-
WAN decouples the network from the management plane and detaches the traffic
management and monitoring functions from hardware.

2. SD WAN AND MPLS

3. WHAT IS MPLS
Multiprotocol Label Switching (MPLS) is a protocol-agnostic routing
technique designed to speed up and shape traffic flows across enterprise
wide area and service provider networks.
MPLS allows most data packets to be forwarded at Layer 2 -- the switching
level -- rather than having to be passed up to Layer 3 -- the routing level.
For this reason, it is often informally described as operating at Layer 2.5.

4. SECURITY
Segmentation is an essential component of SD-WAN security. This method
enables enterprises to isolate, prioritize and assign network traffic. If traffic
from an unknown device requests access to the network, IT can assign
network policies to automatically route that traffic through a firewall first.
Also, IT staff can prioritize high-priority traffic so it always travels on a
specific link.

5. CSP MANAGEMENT SD-WAN
• Communication service providers (Verizon, AT&T, etc)
offer a managed SD WAN option for their customers to
purchase.
• Helps their customers stay competitive and gives them the
ability to keep up with demand while minimizing costs.
• Our target, so they can create a service around it, they
would compete with the pure-play companies.

6. PURE-PLAY SD-WAN
A company that specializes in only one type of product or
service to obtain a large market share.
Viptela
CloudGenix
VeloCloud
Versa Networks
Cybera
Talari

7. VIPTELA
Secure Extensible Network
• Layer 3 VPN overlay
• Partnered with Verizon to target a healthcare company and financial services
firm –also to create the most innovative SD WAN platform
• Are said to be the most experienced and have the most enterprise customers
using their products, even though they are a young company

8. CLOUD GENIX
• Application-defined fabric that eliminates the need for hardware routers –
promises to provide a service that delivers the cloud without compromise
to the remote office.
• Their Central Controller doesn’t perform routing protocols, but instead
uses a flow forwarding policy that is capable of forwarding multi-gigabit
line rates.
• Unique approach to application fingerprinting: sessions flowing between
endpoints to identify applications, rather than using signatures or deep
packet inspection.

9. VELO CLOUD
Cloud-Delivered SD WAN
• Zero touch deployment capability.
• Their SD-WANs separate control plane and data plane layers,
they move intelligence from the data plane into the
programmable control plane for greater agility.
• Operates across any combination of public or private circuits.

10. VERSA NETWORK
SD WAN & SD Security
• Century Link has chosen them as a SD security and SD WAN
vendor.
• Capable of securing internet access over SD WAN.
• Software and NFV architecture that bundles well with their
other managed services.
• Can be deployed in a matter of hours as opposed to days or
weeks.

11. CYBERA
SD WAN
• Built on SSEE principle (security, speed, ease, economics) of
provisioning new applications and locations.
• It consolidates multiple network functions including routing,
VPN, firewall, IDS, multi-factor authentication, network
segmentation and Wi-Fi in a single on premise device that can be
installed in minutes.

12. TALARI
• All available bandwidth is used which reduces congestion .
• Quality sensitive applications remain on high quality paths
and bulk transfers complete faster by using aggregated link
capacity without displacing high priority traffic.