[ 1779.587802] br0: port 1(dummy0) entered blocking state
[ 1779.587879] br0: port 1(dummy0) entered disabled state
[ 1779.587947] dummy0: entered allmulticast mode
[ 1779.588029] dummy0: entered promiscuous mode
[ 1779.591487] br0: port 1(dummy0) entered blocking state
[ 1779.591519] br0: port 1(dummy0) entered forwarding state
[ 1779.842475] dummy0: left allmulticast mode
[ 1779.842568] dummy0: left promiscuous mode
[ 1779.842628] br0: port 1(dummy0) entered disabled state