[ 1586.357859] br0: port 1(dummy0) entered blocking state
[ 1586.357892] br0: port 1(dummy0) entered disabled state
[ 1586.357931] dummy0: entered allmulticast mode
[ 1586.357979] dummy0: entered promiscuous mode
[ 1586.360659] br0: port 1(dummy0) entered blocking state
[ 1586.360692] br0: port 1(dummy0) entered forwarding state
[ 1586.550055] dummy0: left allmulticast mode
[ 1586.550083] dummy0: left promiscuous mode
[ 1586.550106] br0: port 1(dummy0) entered disabled state