[ 1753.887786] br0: port 1(dummy0) entered blocking state
[ 1753.887824] br0: port 1(dummy0) entered disabled state
[ 1753.887850] dummy0: entered allmulticast mode
[ 1753.887891] dummy0: entered promiscuous mode
[ 1753.891233] br0: port 1(dummy0) entered blocking state
[ 1753.891281] br0: port 1(dummy0) entered forwarding state
[ 1754.130769] dummy0: left allmulticast mode
[ 1754.130793] dummy0: left promiscuous mode
[ 1754.130828] br0: port 1(dummy0) entered disabled state