[ 1589.927690] br0: port 1(dummy0) entered blocking state
[ 1589.927734] br0: port 1(dummy0) entered disabled state
[ 1589.927765] dummy0: entered allmulticast mode
[ 1589.927813] dummy0: entered promiscuous mode
[ 1589.930315] br0: port 1(dummy0) entered blocking state
[ 1589.930377] br0: port 1(dummy0) entered forwarding state
[ 1590.105944] dummy0: left allmulticast mode
[ 1590.106033] dummy0: left promiscuous mode
[ 1590.106092] br0: port 1(dummy0) entered disabled state