On the device RB4011iGS+RM there is a serious HW problem when on the switch chip (port 1-5 or 6-10) are both 1Gb and 100Mb connection. When the traffic is only on 1Gb line, the throughput of this connection is about 1000 Mbps. When there is also 100Mbps traffic on 100Mb line, the traffic on 1Gb line drops down to only 100Mpbs. So only 100Mbps + 100Mbps.
When the 100Mb line is switched to 1Gb the performance is expected 1000Mbps + 1000Mbps.
It’s more serious than I thought. With the second line speed as 10Mb, the 1Gb interface maximum speed goes down to 10Mbps.
Same switch chip RTL8367 is used also in RB1100AHx4.
Can someone confirm this HW issue?