[ 1591.501009] br0: port 1(dummy0) entered blocking state
[ 1591.501048] br0: port 1(dummy0) entered disabled state
[ 1591.501085] dummy0: entered allmulticast mode
[ 1591.501134] dummy0: entered promiscuous mode
[ 1591.503938] br0: port 1(dummy0) entered blocking state
[ 1591.504001] br0: port 1(dummy0) entered forwarding state
[ 1591.681557] dummy0: left allmulticast mode
[ 1591.681627] dummy0: left promiscuous mode
[ 1591.681688] br0: port 1(dummy0) entered disabled state