[ 1675.156550] br0: port 1(dummy0) entered blocking state
[ 1675.156593] br0: port 1(dummy0) entered disabled state
[ 1675.156624] dummy0: entered allmulticast mode
[ 1675.156686] dummy0: entered promiscuous mode
[ 1675.159174] br0: port 1(dummy0) entered blocking state
[ 1675.159233] br0: port 1(dummy0) entered forwarding state
[ 1675.350412] dummy0: left allmulticast mode
[ 1675.350475] dummy0: left promiscuous mode
[ 1675.350544] br0: port 1(dummy0) entered disabled state