[ 2029.141570] br0: port 1(dummy0) entered blocking state
[ 2029.141606] br0: port 1(dummy0) entered disabled state
[ 2029.141640] dummy0: entered allmulticast mode
[ 2029.141682] dummy0: entered promiscuous mode
[ 2029.145125] br0: port 1(dummy0) entered blocking state
[ 2029.145183] br0: port 1(dummy0) entered forwarding state
[ 2029.385801] dummy0: left allmulticast mode
[ 2029.385831] dummy0: left promiscuous mode
[ 2029.385859] br0: port 1(dummy0) entered disabled state