[ 1885.990621] br0: port 1(dummy0) entered blocking state
[ 1885.990675] br0: port 1(dummy0) entered disabled state
[ 1885.990714] dummy0: entered allmulticast mode
[ 1885.990765] dummy0: entered promiscuous mode
[ 1885.994176] br0: port 1(dummy0) entered blocking state
[ 1885.994208] br0: port 1(dummy0) entered forwarding state
[ 1886.252478] dummy0: left allmulticast mode
[ 1886.252517] dummy0: left promiscuous mode
[ 1886.252547] br0: port 1(dummy0) entered disabled state