[ 2330.391418][T11924] br0: port 1(dummy0) entered blocking state
[ 2330.391764][T11924] br0: port 1(dummy0) entered disabled state
[ 2330.392105][T11924] dummy0: entered allmulticast mode
[ 2330.393155][T11924] dummy0: entered promiscuous mode
[ 2330.420038][T11925] br0: port 1(dummy0) entered blocking state
[ 2330.420504][T11925] br0: port 1(dummy0) entered forwarding state
[ 2332.915674][   T12] dummy0: left allmulticast mode
[ 2332.915958][   T12] dummy0: left promiscuous mode
[ 2332.916273][   T12] br0: port 1(dummy0) entered disabled state