Reliability and Prioritization
Overall, traditional WANs running over MPLS offer great Quality of Service (QoS), since they avoid packet loss by virtually isolating packets. Most of the time, this is run over one carrier-grade circuit connection. One thing to keep in mind though is that MPLS bandwidth like this is typically more expensive.
Prioritizing what traffic gets higher priority is essential, helping organizations ensure their calls aren’t dropped. Traditional WAN technology allows for prioritization and can give you that traffic predictability and reliability.
Research reveals that internet costs can be reduced with SD-WAN. This is due to the fact that you don’t have to pay as much to upgrade your bandwidth, along with the ability to cost-effectively mix and match network links, according to the content type and priority. SD-WAN can run on 4G LTE and internet broadband, which is typically less expensive than service delivered via an MPLS network.
SD-WAN allows you to send your most important data traffic over the best network link, along with dozens of application prioritization options. This leads to little or no latency and packet loss. Additionally, if an outage occurs, your traffic is switched over to another connection instantly.