What is SD-WAN and how does it work?
What is SD-WAN?
Software Defined Wide Area Network, also known as “SD-WAN” is a software defined networking (SDN) approach that elevates network traffic management away from hardware and premise, to next generation software in the cloud for enhanced agility, control and visibility.
How does it work?
SD-WAN uses a centralized control function incorporating user defined application and routing policies, to provide highly secure, dynamic, application-aware network traffic management.
This level of control allows for optimal delivery paths across any combination of network transport type, providing flexible deployment options and improved total cost of ownership.
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Learn more about AT&T SD-WAN solutions
There are 4 SD-WAN solutions.
- SD-WAN – Network Based
- SD-WAN – Over the Top
- SD-WAN – Static Network Based
- SD-WAN – Static Over the Top
Core features of SD-WAN include Transport Agnostic, Application Recognition, WAN Aggregation, Centralized Management and Control.
AT&T SD-WAN allows for additional network functions to be installed on single hardware device at the edge. The AT&T FlexWareSM Device can support multiple VNF’s including Firewall and WAN Optimization.
IPSec VPNs stand for IP Security protocol VPN using encryption over the Internet. It allows two or more users to communicate in a highly secure manner. AT&T SD-WAN uses IPSec.
An MPLS VPN uses multiprotocol label switching (MPLS) to create a virtual private network (VPN). MPLS VPN is a flexible method to transport and route several types of network traffic using a private MPLS backbone. AT&T VPN is an MPLS VPN.
The AT&T SD-WAN - Network Based solution allows you to mix and match different site types (e.g. SD-WAN/Non SD-WAN).
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