[ 1779.761922] br0: port 1(dummy0) entered blocking state
[ 1779.761968] br0: port 1(dummy0) entered disabled state
[ 1779.762006] dummy0: entered allmulticast mode
[ 1779.762061] dummy0: entered promiscuous mode
[ 1779.765751] br0: port 1(dummy0) entered blocking state
[ 1779.765815] br0: port 1(dummy0) entered forwarding state
[ 1780.026278] dummy0: left allmulticast mode
[ 1780.026324] dummy0: left promiscuous mode
[ 1780.026354] br0: port 1(dummy0) entered disabled state