bridge ports break if one of the MT's get rebooted

RouterOS Forwarding Protocols
1

Hi,

I have about a main mikrotik and then 5 mikrotiks in the office connected to eth2,3,4,5,6 and a fibre connection going to our ISP on eth1.

On the 5 ports (eth2,3,4,5,6) I have 3 VLANs:
vlan100-Voice
vlan600-Data
vlan700-PPPoE

For the vlan700-PPPoE I have eth1 (our fibre) bridged and then a PPPoE client on this bridge to connect our internet which then NAT’s to vlan600-Data.
The problem we have is if a MT is rebooted in our network, the pppoe client disconnects and takes ages to re-establish, I suspect this is because I need to set the eth1 as a priority for the bridge.

Can anyone confirm if setting eth1 (in the bridge) to priority 50, Path cost 100 will make this port the priority port so if any MT’s on my network are rebooted it wont cause the PPPoE client to disconnect?

2

Hy,

maybe you should try to set an admin-mac on the bridge?

3

Looking closer, the device that causes the bridge to go down is on Ether9, if I look at my bridge >> ports and look at ether9, the interface is port1.
Reading further, the lower the port number the higher the priority as a root port, so I suspect this dumb device acting as a switch extension is acting as a root port.

How can I set my ether1 (fibre port) facing my ISP as the root port?

cheers