[ 1707.622199] br0: port 1(dummy0) entered blocking state
[ 1707.622231] br0: port 1(dummy0) entered disabled state
[ 1707.622253] dummy0: entered allmulticast mode
[ 1707.622293] dummy0: entered promiscuous mode
[ 1707.624982] br0: port 1(dummy0) entered blocking state
[ 1707.625006] br0: port 1(dummy0) entered forwarding state
[ 1707.803171] dummy0: left allmulticast mode
[ 1707.803228] dummy0: left promiscuous mode
[ 1707.803280] br0: port 1(dummy0) entered disabled state