[ 1830.651391] br0: port 1(dummy0) entered blocking state
[ 1830.651437] br0: port 1(dummy0) entered disabled state
[ 1830.651472] dummy0: entered allmulticast mode
[ 1830.651522] dummy0: entered promiscuous mode
[ 1830.654996] br0: port 1(dummy0) entered blocking state
[ 1830.655058] br0: port 1(dummy0) entered forwarding state
[ 1830.912642] dummy0: left allmulticast mode
[ 1830.912676] dummy0: left promiscuous mode
[ 1830.912706] br0: port 1(dummy0) entered disabled state