I have QoS set to prioritize traffic on my WAN, and for the most part, it appears to be working exactly as expected.
I have traffic to and from a particular server tagged, and I run ping tests from our primary location to this server. I also have ping tests running to a server whos traffic is not prioritized.
For the most part, prioritized traffic appears to have lower latency than its non-prioritized counterpart. There are exceptions, however. See the attached image for more details. Although between 13:40 and 13:50 the overall latency is lower, the duration of the latency spike is higher. Can anyone think of what might be causing this?