[ 1772.946729] br0: port 1(dummy0) entered blocking state
[ 1772.946768] br0: port 1(dummy0) entered disabled state
[ 1772.946802] dummy0: entered allmulticast mode
[ 1772.946850] dummy0: entered promiscuous mode
[ 1772.949622] br0: port 1(dummy0) entered blocking state
[ 1772.949684] br0: port 1(dummy0) entered forwarding state
[ 1773.135647] dummy0: left allmulticast mode
[ 1773.135686] dummy0: left promiscuous mode
[ 1773.135715] br0: port 1(dummy0) entered disabled state