Question regarding simple queues and max throughput

RouterOS General
1

Hi,

With simple queue on version 6.29.1 on a CCR1016-12S-1S+:

/queue simple
name=“A1” target=x.x.x.x/32 parent=none packet-marks=“” priority=8/8 queue=queue_pfifo_10k/queue_pfifo_30k limit-at=0/0
max-limit=30M/30M burst-limit=0/0 burst-threshold=0/0 burst-time=0s/0s total-queue=queue_pfifo_30k total-limit-at=30M total-max-limit=30M

Based on my limited knowledge this should give the user a maximum upload/download rate of 30M, with a pfifo queue that will queue traffic up to 50k packets.

When I’m looking at the ‘traffic’ graph of the simple queue I sometimes see that the download peaks at around 82Mbps. Why is this happening? Shouldn’t the graph only show peaks of around 30M?

Is it redundant to specify total-max-limit to 30M when max-limit is set?

Thanks

2

Hi,

Have you disabled fasttrack connection at Firewall → Filter Rules?
You need to disable fasttrack in order to have queues.

3

Hi, I’m not using Fasttrack and I’ve got 140 functional simple queues, and the total statistics view shows me the number of packets queued when it hits 30M download or upload.
Would it be better to use PCQ instead of pfifo and set the rate to 30M instead?