[ 1806.136222] br0: port 1(dummy0) entered blocking state
[ 1806.136266] br0: port 1(dummy0) entered disabled state
[ 1806.136303] dummy0: entered allmulticast mode
[ 1806.136363] dummy0: entered promiscuous mode
[ 1806.139981] br0: port 1(dummy0) entered blocking state
[ 1806.140046] br0: port 1(dummy0) entered forwarding state
[ 1806.412337] dummy0: left allmulticast mode
[ 1806.412376] dummy0: left promiscuous mode
[ 1806.412407] br0: port 1(dummy0) entered disabled state