[ 1718.165270] br0: port 1(dummy0) entered blocking state
[ 1718.165305] br0: port 1(dummy0) entered disabled state
[ 1718.165339] dummy0: entered allmulticast mode
[ 1718.165390] dummy0: entered promiscuous mode
[ 1718.168149] br0: port 1(dummy0) entered blocking state
[ 1718.168209] br0: port 1(dummy0) entered forwarding state
[ 1718.358252] dummy0: left allmulticast mode
[ 1718.358311] dummy0: left promiscuous mode
[ 1718.358371] br0: port 1(dummy0) entered disabled state