[ 1592.121661] br0: port 1(dummy0) entered blocking state
[ 1592.121694] br0: port 1(dummy0) entered disabled state
[ 1592.121730] dummy0: entered allmulticast mode
[ 1592.121779] dummy0: entered promiscuous mode
[ 1592.124666] br0: port 1(dummy0) entered blocking state
[ 1592.124730] br0: port 1(dummy0) entered forwarding state
[ 1592.324385] dummy0: left allmulticast mode
[ 1592.324414] dummy0: left promiscuous mode
[ 1592.324445] br0: port 1(dummy0) entered disabled state