[ 1818.660798] br0: port 1(dummy0) entered blocking state
[ 1818.660844] br0: port 1(dummy0) entered disabled state
[ 1818.660873] dummy0: entered allmulticast mode
[ 1818.660927] dummy0: entered promiscuous mode
[ 1818.664393] br0: port 1(dummy0) entered blocking state
[ 1818.664458] br0: port 1(dummy0) entered forwarding state
[ 1818.922020] dummy0: left allmulticast mode
[ 1818.922069] dummy0: left promiscuous mode
[ 1818.922129] br0: port 1(dummy0) entered disabled state