MikroTik

hello,
I'd noticed mac address of bridge on all the vlans passed through a trunk port in crs. Suppose I'd passed vlan 100 to 999 from sfpplus1 port it will show bridge mac address on all the 100 to 999 ports in all the network which confuses us and unnecessary flooding of mac addresses. Is there a work around for this behaviour.
thanks

Bridge doesn't "flood" its MAC address on trafgic passing via debice ... because MAC address (neither src nor dst) doesn't get rewritten by bridge or switch.

So you'll have to be more speciffic as to what you think is a problem. Could be STP/RSTP BPDU frames ... those aren't VLAN tagged by definition (MSTP are VLAN ID specific though). But that's only a guess. Beware that Windows NIC drivers, when not properly configured for 802.1Q headers (VLAN tags), tend to silently strip them and pass resulting frames to further networking stack ... so it seems as if switch is bleeding traffic into wrong VLANs. So relying on Windows when monitoring/debugging VLAN stuff might misleading.