[ 1646.127066] br0: port 1(dummy0) entered blocking state
[ 1646.127149] br0: port 1(dummy0) entered disabled state
[ 1646.127217] dummy0: entered allmulticast mode
[ 1646.127312] dummy0: entered promiscuous mode
[ 1646.130493] br0: port 1(dummy0) entered blocking state
[ 1646.130524] br0: port 1(dummy0) entered forwarding state
[ 1646.333333] dummy0: left allmulticast mode
[ 1646.333369] dummy0: left promiscuous mode
[ 1646.333401] br0: port 1(dummy0) entered disabled state