[ 1734.621185] br0: port 1(dummy0) entered blocking state
[ 1734.621222] br0: port 1(dummy0) entered disabled state
[ 1734.621258] dummy0: entered allmulticast mode
[ 1734.621309] dummy0: entered promiscuous mode
[ 1734.624213] br0: port 1(dummy0) entered blocking state
[ 1734.624277] br0: port 1(dummy0) entered forwarding state
[ 1734.808010] dummy0: left allmulticast mode
[ 1734.808038] dummy0: left promiscuous mode
[ 1734.808069] br0: port 1(dummy0) entered disabled state