[ 1592.758156] br0: port 1(dummy0) entered blocking state
[ 1592.758243] br0: port 1(dummy0) entered disabled state
[ 1592.758308] dummy0: entered allmulticast mode
[ 1592.758393] dummy0: entered promiscuous mode
[ 1592.761464] br0: port 1(dummy0) entered blocking state
[ 1592.761501] br0: port 1(dummy0) entered forwarding state
[ 1592.970413] dummy0: left allmulticast mode
[ 1592.970499] dummy0: left promiscuous mode
[ 1592.970566] br0: port 1(dummy0) entered disabled state