Limiting The Bandwidth on ethernet port.

I am using RB450G for a while now. It had an option in ethernet interface to limit the bandwidth (Tx/Rx) on ethernet ports. After recent OS update, that option has been disappeared. Can you please guide me how can i limit max Tx/Rx rate on an ethernet port?

Use simple Queues, select max download limit and max upload limit, for all ip put 192.168.88.0/24 or if u want a specific person to navigate with limited bandwidth then put the ip address of that specific client. (I am assuming that ur using default DHCP 192.168.88.X, in ur case put the ip range ur using)