[ 1593.903985] br0: port 1(dummy0) entered blocking state
[ 1593.904022] br0: port 1(dummy0) entered disabled state
[ 1593.904059] dummy0: entered allmulticast mode
[ 1593.904106] dummy0: entered promiscuous mode
[ 1593.906576] br0: port 1(dummy0) entered blocking state
[ 1593.906635] br0: port 1(dummy0) entered forwarding state
[ 1594.070409] dummy0: left allmulticast mode
[ 1594.070445] dummy0: left promiscuous mode
[ 1594.070533] br0: port 1(dummy0) entered disabled state