[ 1594.971884] br0: port 1(dummy0) entered blocking state
[ 1594.971926] br0: port 1(dummy0) entered disabled state
[ 1594.971972] dummy0: entered allmulticast mode
[ 1594.972062] dummy0: entered promiscuous mode
[ 1594.974486] br0: port 1(dummy0) entered blocking state
[ 1594.974515] br0: port 1(dummy0) entered forwarding state
[ 1595.141520] dummy0: left allmulticast mode
[ 1595.141599] dummy0: left promiscuous mode
[ 1595.141655] br0: port 1(dummy0) entered disabled state