[ 1806.890155] br0: port 1(dummy0) entered blocking state
[ 1806.890181] br0: port 1(dummy0) entered disabled state
[ 1806.890202] dummy0: entered allmulticast mode
[ 1806.890241] dummy0: entered promiscuous mode
[ 1806.893644] br0: port 1(dummy0) entered blocking state
[ 1806.893664] br0: port 1(dummy0) entered forwarding state
[ 1807.157453] dummy0: left allmulticast mode
[ 1807.157483] dummy0: left promiscuous mode
[ 1807.157503] br0: port 1(dummy0) entered disabled state