[ 1763.923895] br0: port 1(dummy0) entered blocking state
[ 1763.923968] br0: port 1(dummy0) entered disabled state
[ 1763.924039] dummy0: entered allmulticast mode
[ 1763.924130] dummy0: entered promiscuous mode
[ 1763.926902] br0: port 1(dummy0) entered blocking state
[ 1763.926936] br0: port 1(dummy0) entered forwarding state
[ 1764.116761] dummy0: left allmulticast mode
[ 1764.116830] dummy0: left promiscuous mode
[ 1764.116916] br0: port 1(dummy0) entered disabled state