Virtual Networking Innovation Community

DMPO or why you need to add a new acronym to your WAN lingo

Even though the Internet has generally enough performance for applications, humans still have a low tolerance for problems with some applications like Voice or Video. So what can you do to the network to improve the Quality of Experience?

Voice and Video over IP are pretty standard nowadays. Whether it is Zoom or Skype for Business or any other communication platform, we all enjoy the simplicity to do calls and video conferences by the click of a button in an email invitation.

Voice and Video in Networks

But I’m pretty sure, that you also have experienced these funny events, when the link is not delivering the right performance, the voice of another participant sounds like C3PO or like that person is sitting in a tin cabin. Or you have heard the effect, that people have the skill to talk really, really fast to catch up on buffering in the network. For video you most likely remember these dreadful green squares all over the picture or the content being bathed in green, while you can only see silhouettes moving.

Why is voice and video so difficult?

All of these issues are related to problems on the link, which lead to packet loss, introduction of jitter and/or latency. While the used streaming protocols use UDP and even though many applications use adaptive mechanisms to adjust to the available bandwidth, they are still prone to the aforementioned effects. They rely on a constant stream of packets, delivered reliably and predictively in the network. This can be hard to guarantee, especially with minimal SLAs you get with a common or garden Internet link.


But there are ways to improve quality of experience. The solution is the implementation of VMware NSX SD-WAN by VeloCloud. Dynamic Multi-Path Optimization (DMPO) is doing continuous and bi-directional measurements of true throughput and performance metrics on every tunnel between deployed NSX SD-WAN Edge devices to one another or to NSX SD-WAN Gateways. Sub-second steering allows independent decisions in both uplink and downlink directions without introducing any asymmetric routing to mitigate impacts from brownout or blackout conditions. This allows to fix voice and video streams without breaking them.

Centrally managed

All this is configured through a simple and centralized web interface, the NSX SD-WAN Orchestrator, by applying flexible and fully customizable business profiles, which take all aspects of the various applications into account and choose the right treatment for each traffic type. These can be general profiles or individually configured and adjusted to the business requirement of each individual site.

So, if you want to have your WAN ready for today’s applications, ask for nothing less than DMPO. Read more about this unique feature and more at


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