[ 1624.658839] br0: port 1(dummy0) entered blocking state
[ 1624.658876] br0: port 1(dummy0) entered disabled state
[ 1624.658908] dummy0: entered allmulticast mode
[ 1624.658959] dummy0: entered promiscuous mode
[ 1624.661816] br0: port 1(dummy0) entered blocking state
[ 1624.661849] br0: port 1(dummy0) entered forwarding state
[ 1624.861677] dummy0: left allmulticast mode
[ 1624.861762] dummy0: left promiscuous mode
[ 1624.861825] br0: port 1(dummy0) entered disabled state