Getting started

Products concerned: SNS 4.3 and later versions

Last update: March 2022

SD-WAN (software-defined wide area network) is a set of software features with which interconnected secure networks and multiple WAN links can be more easily managed.
One of the functional approaches in SD-WAN is its ability to automatically and transparently choose the network links to take depending on the traffic and its associated performance constraints, such as accepted latency, availability rate, etc.

This technical note is intended for organizations that have multiple WAN access links (Internet, branches, etc.) and want to optimize the selection of links based on traffic type (VoIP, Web, ERP, etc.).

To implement this approach, administrators must configure the available links and define router objects that factor in the desired service level agreement (SLA) constraints, which will be used in the policy-based routing (PBR) rules of the traffic in question.