[ 1585.305044] br0: port 1(dummy0) entered blocking state
[ 1585.305095] br0: port 1(dummy0) entered disabled state
[ 1585.305135] dummy0: entered allmulticast mode
[ 1585.305190] dummy0: entered promiscuous mode
[ 1585.308080] br0: port 1(dummy0) entered blocking state
[ 1585.308146] br0: port 1(dummy0) entered forwarding state
[ 1585.502987] dummy0: left allmulticast mode
[ 1585.503068] dummy0: left promiscuous mode
[ 1585.503134] br0: port 1(dummy0) entered disabled state