[ 1860.636127] br0: port 1(dummy0) entered blocking state
[ 1860.636176] br0: port 1(dummy0) entered disabled state
[ 1860.636217] dummy0: entered allmulticast mode
[ 1860.636269] dummy0: entered promiscuous mode
[ 1860.639793] br0: port 1(dummy0) entered blocking state
[ 1860.639824] br0: port 1(dummy0) entered forwarding state
[ 1860.891851] dummy0: left allmulticast mode
[ 1860.891890] dummy0: left promiscuous mode
[ 1860.891922] br0: port 1(dummy0) entered disabled state