[ 1809.628814] br0: port 1(dummy0) entered blocking state
[ 1809.628866] br0: port 1(dummy0) entered disabled state
[ 1809.628906] dummy0: entered allmulticast mode
[ 1809.628960] dummy0: entered promiscuous mode
[ 1809.632533] br0: port 1(dummy0) entered blocking state
[ 1809.632598] br0: port 1(dummy0) entered forwarding state
[ 1809.854235] dummy0: left allmulticast mode
[ 1809.854264] dummy0: left promiscuous mode
[ 1809.854294] br0: port 1(dummy0) entered disabled state