[ 1814.003107] br0: port 1(dummy0) entered blocking state
[ 1814.003149] br0: port 1(dummy0) entered disabled state
[ 1814.003181] dummy0: entered allmulticast mode
[ 1814.003228] dummy0: entered promiscuous mode
[ 1814.006470] br0: port 1(dummy0) entered blocking state
[ 1814.006501] br0: port 1(dummy0) entered forwarding state
[ 1814.229015] dummy0: left allmulticast mode
[ 1814.229047] dummy0: left promiscuous mode
[ 1814.229077] br0: port 1(dummy0) entered disabled state