[ 1689.436608] br0: port 1(dummy0) entered blocking state
[ 1689.436680] br0: port 1(dummy0) entered disabled state
[ 1689.436746] dummy0: entered allmulticast mode
[ 1689.436831] dummy0: entered promiscuous mode
[ 1689.439590] br0: port 1(dummy0) entered blocking state
[ 1689.439652] br0: port 1(dummy0) entered forwarding state
[ 1689.616562] dummy0: left allmulticast mode
[ 1689.616599] dummy0: left promiscuous mode
[ 1689.616653] br0: port 1(dummy0) entered disabled state