[ 1628.262276] br0: port 1(dummy0) entered blocking state
[ 1628.262308] br0: port 1(dummy0) entered disabled state
[ 1628.262331] dummy0: entered allmulticast mode
[ 1628.262368] dummy0: entered promiscuous mode
[ 1628.265127] br0: port 1(dummy0) entered blocking state
[ 1628.265184] br0: port 1(dummy0) entered forwarding state
[ 1628.456017] dummy0: left allmulticast mode
[ 1628.456042] dummy0: left promiscuous mode
[ 1628.456061] br0: port 1(dummy0) entered disabled state