[  137.705896][ T2569] br0: port 1(dummy0) entered blocking state
[  137.706149][ T2569] br0: port 1(dummy0) entered disabled state
[  137.706376][ T2569] dummy0: entered allmulticast mode
[  137.707781][ T2569] dummy0: entered promiscuous mode
[  137.734251][ T2570] br0: port 1(dummy0) entered blocking state
[  137.734498][ T2570] br0: port 1(dummy0) entered forwarding state
[  139.752294][   T12] dummy0: left allmulticast mode
[  139.752567][   T12] dummy0: left promiscuous mode
[  139.752791][   T12] br0: port 1(dummy0) entered disabled state