[ 1586.858727] br0: port 1(dummy0) entered blocking state
[ 1586.858775] br0: port 1(dummy0) entered disabled state
[ 1586.858809] dummy0: entered allmulticast mode
[ 1586.858861] dummy0: entered promiscuous mode
[ 1586.861653] br0: port 1(dummy0) entered blocking state
[ 1586.861684] br0: port 1(dummy0) entered forwarding state
[ 1587.060325] dummy0: left allmulticast mode
[ 1587.060360] dummy0: left promiscuous mode
[ 1587.060420] br0: port 1(dummy0) entered disabled state