[ 1674.957564] br0: port 1(dummy0) entered blocking state
[ 1674.957638] br0: port 1(dummy0) entered disabled state
[ 1674.957704] dummy0: entered allmulticast mode
[ 1674.957785] dummy0: entered promiscuous mode
[ 1674.960442] br0: port 1(dummy0) entered blocking state
[ 1674.960478] br0: port 1(dummy0) entered forwarding state
[ 1675.161619] dummy0: left allmulticast mode
[ 1675.161655] dummy0: left promiscuous mode
[ 1675.161682] br0: port 1(dummy0) entered disabled state