[ 1672.515829] br0: port 1(dummy0) entered blocking state
[ 1672.515873] br0: port 1(dummy0) entered disabled state
[ 1672.515908] dummy0: entered allmulticast mode
[ 1672.515963] dummy0: entered promiscuous mode
[ 1672.518419] br0: port 1(dummy0) entered blocking state
[ 1672.518457] br0: port 1(dummy0) entered forwarding state
[ 1672.682028] dummy0: left allmulticast mode
[ 1672.682061] dummy0: left promiscuous mode
[ 1672.682087] br0: port 1(dummy0) entered disabled state