[ 1786.339200] br0: port 1(dummy0) entered blocking state
[ 1786.339235] br0: port 1(dummy0) entered disabled state
[ 1786.339325] dummy0: entered allmulticast mode
[ 1786.339400] dummy0: entered promiscuous mode
[ 1786.342889] br0: port 1(dummy0) entered blocking state
[ 1786.342912] br0: port 1(dummy0) entered forwarding state
[ 1786.590628] dummy0: left allmulticast mode
[ 1786.590658] dummy0: left promiscuous mode
[ 1786.590696] br0: port 1(dummy0) entered disabled state