We use EoIP for various circuits. The problem is that it seems that there is no way to apply a simple rate limit on a bridged LAN port.

As a workaround, we have to use bridge use-ip-firewall + mangle + queue approach, which drops RB1100AHx2 performance by 50%: from 60 mbps @ 64-byte packets, to only 30 mbps.

I'm posting this in the hope that someone @ Mikrotik sees and decides to help a network with a few hundred installed Mikrotiks.

Have you tried to just set a limit on the interface?

Yes, of course. Plain /queue simple doesn't work on bridged (not routed) traffic.

Unfortunately "bandwidth" property of LAN interfaces allow only a very limited set of pre-defined limits.