Vlan On a bridge

RouterOS General
1

I have a weird issue that occurs when I pull vlans off a bridge. For example, if I have Ports 1 & 2 & 3 on bridge 1, because I want them to be trunk ports. I then take vlan 6 and pull it off the bridge, then bridge vlan6 with port 5 with brigdevlan6 I get a weird traffic flood. Any traffic that comes in vlan 6 gets pushed out ports 1, 2, and 3. It is acting more like a hub and less like a bridge.

In order to fix the issues I have to add vlan 6 to ports 1,2, and 3. I then bridge all 3 off these together and add port 5 to the bridge that now contains all 3 of the other. I can try to draw a diagram if my description is confusing.

I am not sure if this is a glitch of if this is how it is supposed to act. It makes trunking vlans through the mikrotiks difficult.

2

You should decide if you want a single bridge that carries all the VLAN’s in one go, or make
a separate bridge per VLAN. Normally I add a VLAN interface to each ethernet port per VLAN
and then put these VLAN interfaces in a bridge per VLAN. The raw ethernet ports are not put
in a bridge.

3

A seperate bridge per vlan can get a little messy if you are running a lot of vlans.