[   19.331962][  T327] br0: port 1(dummy0) entered blocking state
[   19.332147][  T327] br0: port 1(dummy0) entered disabled state
[   19.332306][  T327] dummy0: entered allmulticast mode
[   19.333257][  T327] dummy0: entered promiscuous mode
[   19.354872][  T328] br0: port 1(dummy0) entered blocking state
[   19.355123][  T328] br0: port 1(dummy0) entered forwarding state
[   21.279864][   T68] dummy0: left allmulticast mode
[   21.280208][   T68] dummy0: left promiscuous mode
[   21.280479][   T68] br0: port 1(dummy0) entered disabled state