Hi!

I have looked at queues to make bandwidth usage "fair" among a number of users. I looked at PCQ a bit and tried using https://wiki.mikrotik.com/wiki/Cable_setup guide but I don't think it fits my setup and what I want to do perfectly

First I have main router and on that I have a trunk port with 16 VLANs (16 different subnets, 192.168.101 to 116) that goes to a 24p VLAN switch. Then each of the 16 VLANs is assigned (and untagged) to a port which then goes out to a apartment. That is one apartment = one VLAN = one subnet in the router

Now I want to share the bandwidth fair and equal between the apartments.
In the best scenario if three computers in one apartment downloads, their speed would be trimmed to ~17mbit each and another user in another apartment then gets his speed trimmed to 50mbit. That is both apartments get ~50mbit each if the WAN is at 100mbit. If more apartments is using the WAN they should all be getting a equal slice of available bandwidth. Like if 10 apartments using the WAN and tries to download at high speeds they should get ~10mbit each.
What I really want to accomplish here is that people that uses high bandwidth should not be able to make for example streaming a movie a bad experience for a user in another apartment.
And I don't want to hard limit the bandwidth to 100/16=6,25mbit for each apartment

Is this possible to do?

Kind regards
David

Yeah it's pretty easy to do.
Mark each subnet (with separate packet marks for upload and download) in mangle. You could mark connections before packet marking like a lot of guides recommend, but I don't since I've found it unnecessary and if you're not maxing out the cpu.
Ex:
Then set up a a queue tree with a parent upload and parent download. Parent max limits are set to 80-90% of the max limit you get on speed tests.
Then make child queues for each packet mark you made in mangle and put them under their respective parent queue. If all you want to do is distribute evenly across subnets, you don't need to touch anything else like priorities, burst, limit-at, etc. - just set the queue type for each child so that bandwidth is more fairly distributed within each subnet.
Ex:
Make mangle rules and child queues for each subnet as needed.

Hi!
Thanks! That seems to do some packet dropping and at least total bandwidth does not go over the max limit
A bit hard to tell if it really splits bandwidth equal between the child queues...

One thing I can't really understand, shouldn't the parent queue also be sfq, same as the child queues? Or are we creating two different types of queues here, one type for parent and one for childs that is supposed to be of different kinds and that work a bit different? The default parent type that is being assigned in your example that doesn't specify something here is "default-small" and that is of kind pfifo, is that correct?
Maybe the parent queue type doesn't even matter if it is only used to calculate the bandwidth sum?

Hi!
Thanks! That seems to do some packet dropping and at least total bandwidth does not go over the max limit
A bit hard to tell if it really splits bandwidth equal between the child queues...

One thing I can't really understand, shouldn't the parent queue also be sfq, same as the child queues? Or are we creating two different types of queues here, one type for parent and one for childs that is supposed to be of different kinds and that work a bit different? The default parent type that is being assigned in your example that doesn't specify something here is "default-small" and that is of kind pfifo, is that correct?
Maybe the parent queue type doesn't even matter if it is only used to calculate the bandwidth sum?

Queue types (and priority) are irrelevant for parent queues.