What I'm going to try is a little confusing, and for most people it doesn't make any sense.
But it's a demand I currently have.
I have the Mikrotik 1100ahx2 (v7.9) with 2 bridge
bridge1 (eth1, eth2, eth3, eth4, eth5, eth6, eth7, eth8, eth9)
bridge2 (eth10)
The eth11, eth12 and eth13 ports are ISP
I have 2 to 3 links per store
Bridge1 has to go out through ISP1
Bridge2 has to go out through ISP2
If ISP1 stops working, you have to disable the eth9 port, and change the navigation from bridge1 to ISP2
If you don't have ISP2, exit through ISP3
on bridge2, I don't need this link exchange
All traffic from bridge1 must be isolated from bridge2, they must not talk to each other, and must be of different ranges.
Can anyone help me with this configuration?