[ 1661.627859] br0: port 1(dummy0) entered blocking state
[ 1661.627910] br0: port 1(dummy0) entered disabled state
[ 1661.627946] dummy0: entered allmulticast mode
[ 1661.627999] dummy0: entered promiscuous mode
[ 1661.631617] br0: port 1(dummy0) entered blocking state
[ 1661.631692] br0: port 1(dummy0) entered forwarding state
[ 1661.862201] dummy0: left allmulticast mode
[ 1661.862264] dummy0: left promiscuous mode
[ 1661.862299] br0: port 1(dummy0) entered disabled state