[ 1594.840480] br0: port 1(dummy0) entered blocking state
[ 1594.840516] br0: port 1(dummy0) entered disabled state
[ 1594.840545] dummy0: entered allmulticast mode
[ 1594.840586] dummy0: entered promiscuous mode
[ 1594.842938] br0: port 1(dummy0) entered blocking state
[ 1594.842965] br0: port 1(dummy0) entered forwarding state
[ 1595.017512] dummy0: left allmulticast mode
[ 1595.017600] dummy0: left promiscuous mode
[ 1595.017655] br0: port 1(dummy0) entered disabled state