[ 1792.069614] br0: port 1(dummy0) entered blocking state
[ 1792.069695] br0: port 1(dummy0) entered disabled state
[ 1792.069765] dummy0: entered allmulticast mode
[ 1792.069854] dummy0: entered promiscuous mode
[ 1792.073503] br0: port 1(dummy0) entered blocking state
[ 1792.073536] br0: port 1(dummy0) entered forwarding state
[ 1792.347892] dummy0: left allmulticast mode
[ 1792.347934] dummy0: left promiscuous mode
[ 1792.347974] br0: port 1(dummy0) entered disabled state