[ 1731.905028] br0: port 1(dummy0) entered blocking state
[ 1731.905070] br0: port 1(dummy0) entered disabled state
[ 1731.905114] dummy0: entered allmulticast mode
[ 1731.905170] dummy0: entered promiscuous mode
[ 1731.908592] br0: port 1(dummy0) entered blocking state
[ 1731.908662] br0: port 1(dummy0) entered forwarding state
[ 1732.170182] dummy0: left allmulticast mode
[ 1732.170219] dummy0: left promiscuous mode
[ 1732.170254] br0: port 1(dummy0) entered disabled state