[ 1890.724826] br0: port 1(dummy0) entered blocking state
[ 1890.724873] br0: port 1(dummy0) entered disabled state
[ 1890.724909] dummy0: entered allmulticast mode
[ 1890.724962] dummy0: entered promiscuous mode
[ 1890.728353] br0: port 1(dummy0) entered blocking state
[ 1890.728385] br0: port 1(dummy0) entered forwarding state
[ 1890.967612] dummy0: left allmulticast mode
[ 1890.967642] dummy0: left promiscuous mode
[ 1890.967671] br0: port 1(dummy0) entered disabled state