[ 1665.415328] br0: port 1(dummy0) entered blocking state
[ 1665.415368] br0: port 1(dummy0) entered disabled state
[ 1665.415401] dummy0: entered allmulticast mode
[ 1665.415447] dummy0: entered promiscuous mode
[ 1665.417982] br0: port 1(dummy0) entered blocking state
[ 1665.418014] br0: port 1(dummy0) entered forwarding state
[ 1665.592465] dummy0: left allmulticast mode
[ 1665.592527] dummy0: left promiscuous mode
[ 1665.592603] br0: port 1(dummy0) entered disabled state