[ 1742.583849] br0: port 1(dummy0) entered blocking state
[ 1742.583946] br0: port 1(dummy0) entered disabled state
[ 1742.584011] dummy0: entered allmulticast mode
[ 1742.584105] dummy0: entered promiscuous mode
[ 1742.586654] br0: port 1(dummy0) entered blocking state
[ 1742.586692] br0: port 1(dummy0) entered forwarding state
[ 1742.769096] dummy0: left allmulticast mode
[ 1742.769131] dummy0: left promiscuous mode
[ 1742.769158] br0: port 1(dummy0) entered disabled state