[ 1724.677970] br0: port 1(dummy0) entered blocking state
[ 1724.678014] br0: port 1(dummy0) entered disabled state
[ 1724.678050] dummy0: entered allmulticast mode
[ 1724.678108] dummy0: entered promiscuous mode
[ 1724.680899] br0: port 1(dummy0) entered blocking state
[ 1724.680964] br0: port 1(dummy0) entered forwarding state
[ 1724.871713] dummy0: left allmulticast mode
[ 1724.871779] dummy0: left promiscuous mode
[ 1724.871841] br0: port 1(dummy0) entered disabled state