In MikroTik RouterOS, when multiple simple queues are configured for the same target (IP address), only the first matching queue in sequence is processed. This means that:
* If queue 0 (2M) comes before queue 1 (4M), the 2M limit will be enforced.
* The second queue is ignored, even if it provides a higher rate.
MikroTik does not sum the bandwidth of multiple queues. The first applicable queue (based on order) wins.
MTCNA Course Manual - Simple Queues:
"Simple Queues are matched top-down. Only the first matching queue is applied per packet." Rene Meneses MTCNA Guide - QoS Queue Behavior:
"Queue order matters. The first rule that matches is the one used. Lower queues override lower ones if placed first." Terry Combs Notes - Queue Troubleshooting:
"If two queues match the same IP, only the first is active. Don't stack queues unless using a queue tree."