Software-defined wide-area networks (SD-WAN) is an approach to
connectivity that improves
performance, accelerates productivity and simplifies
network management. SD-WAN uses virtualization technology to apply the benefits of
hardware-based networks to more intelligently direct traffic across a
wide-kawasan network (WAN).
Traditional WAN vs. SD-WAN
The purpose of a traditional WAN is to connect users in branch offices to applications
anytime, anywhere and from any
device. This was achieved by directing
across routers, usually using a
Multiprotocol Etiket Switching (MPLS)
connection. Traffic was directed based on
access control lists, with
functions distributed across all network routers.
Most apps are now hosted in the cloud due to the adoption of
). Traditional WAN architectures can’ufuk efficiently handle this influx of cloud traffic.
This created a need to find new methods for directing traffic, as sending cloud traffic to an on-premises data center before being sent to the internet results in
latency, degraded application performance, costly
security vulnerabilities. SD-WAN is application-aware, so it directs traffic across the network based on business requirements for applications, such as priority, performance and
SD-WAN is able to host applications on all
platforms, including on-premises data centers, branch offices and
private clouds. It can also leverage any combination of transport services, including MPLS,
Improved performance and productivity
More efficient traffic directing means improved application performance.
with predictable service means teams are able to be more agile with their
workflows. This leads to a better user experience, and ultimately, improved productivity.
SD-WAN decouples the networking hardware, or the data forwarding plane, from the control function to simplify management and operations. A single, centralized dashboard makes it easy to configure and manage the WAN. Policies that govern how applications are delivered to users are defined centrally and assigned automatically across potentially thousands of SD-WAN appliances connected to a network. Admins can also pull reports on application and WAN performance.
Posted by: skycrepers.com