set Queue on ether2

hello

how to set 20Mb Queue on ether2 ?
( how to limit Port Speed ? )

this config not work !

/queue simple add max-limit=20M/20M name=ether2 queue=default/default target=ether2

please help me

Hi.
What is the routerboard model?
Also do you want to slow down all traffic on this port including local network, or only routed traffic to other subnets and/or the internet?

thanks,

CCR1036 ROS 6.44

I triedو it did not work

update

update

please list your config: /export hide-sensitive
Also what do you want to limit? upload, download, both?