[ 1525.707928] br0: port 1(dummy0) entered blocking state
[ 1525.708013] br0: port 1(dummy0) entered disabled state
[ 1525.708087] dummy0: entered allmulticast mode
[ 1525.708184] dummy0: entered promiscuous mode
[ 1525.711160] br0: port 1(dummy0) entered blocking state
[ 1525.711196] br0: port 1(dummy0) entered forwarding state
[ 1525.899356] dummy0: left allmulticast mode
[ 1525.899400] dummy0: left promiscuous mode
[ 1525.899474] br0: port 1(dummy0) entered disabled state