[ 1591.025127] br0: port 1(dummy0) entered blocking state
[ 1591.025162] br0: port 1(dummy0) entered disabled state
[ 1591.025193] dummy0: entered allmulticast mode
[ 1591.025232] dummy0: entered promiscuous mode
[ 1591.027896] br0: port 1(dummy0) entered blocking state
[ 1591.027955] br0: port 1(dummy0) entered forwarding state
[ 1591.218902] dummy0: left allmulticast mode
[ 1591.218966] dummy0: left promiscuous mode
[ 1591.219021] br0: port 1(dummy0) entered disabled state