[ 1645.042726] br0: port 1(dummy0) entered blocking state
[ 1645.042763] br0: port 1(dummy0) entered disabled state
[ 1645.042796] dummy0: entered allmulticast mode
[ 1645.042849] dummy0: entered promiscuous mode
[ 1645.045441] br0: port 1(dummy0) entered blocking state
[ 1645.045503] br0: port 1(dummy0) entered forwarding state
[ 1645.221976] dummy0: left allmulticast mode
[ 1645.222005] dummy0: left promiscuous mode
[ 1645.222032] br0: port 1(dummy0) entered disabled state