[ 1775.320131] br0: port 1(dummy0) entered blocking state
[ 1775.320171] br0: port 1(dummy0) entered disabled state
[ 1775.320208] dummy0: entered allmulticast mode
[ 1775.320257] dummy0: entered promiscuous mode
[ 1775.323071] br0: port 1(dummy0) entered blocking state
[ 1775.323138] br0: port 1(dummy0) entered forwarding state
[ 1775.501822] dummy0: left allmulticast mode
[ 1775.501860] dummy0: left promiscuous mode
[ 1775.501912] br0: port 1(dummy0) entered disabled state