[ 1593.588591] br0: port 1(dummy0) entered blocking state
[ 1593.588635] br0: port 1(dummy0) entered disabled state
[ 1593.588668] dummy0: entered allmulticast mode
[ 1593.588718] dummy0: entered promiscuous mode
[ 1593.591402] br0: port 1(dummy0) entered blocking state
[ 1593.591431] br0: port 1(dummy0) entered forwarding state
[ 1593.774880] dummy0: left allmulticast mode
[ 1593.774907] dummy0: left promiscuous mode
[ 1593.774937] br0: port 1(dummy0) entered disabled state