At what utilization percentage do queues turn red?

• A. 0-25%
• B. 26-50%
• C. 51-75%
• D. 76-100%

Answer: (D)

In MikroTik’s queue visuals, color is used to show how full the queue is and how close you are to saturation. The red color indicates a high, potentially problematic level of utilization, signaling congestion and possible packet loss or high latency. This red zone starts once utilization reaches the upper bracket—roughly 76% and above, up to 100%. When you see red, it’s a clear cue to review and adjust your QoS settings or capacity to prevent performance issues.