[ 1731.929693] br0: port 1(dummy0) entered blocking state
[ 1731.929763] br0: port 1(dummy0) entered disabled state
[ 1731.929850] dummy0: entered allmulticast mode
[ 1731.929935] dummy0: entered promiscuous mode
[ 1731.933661] br0: port 1(dummy0) entered blocking state
[ 1731.933695] br0: port 1(dummy0) entered forwarding state
[ 1732.212475] dummy0: left allmulticast mode
[ 1732.212511] dummy0: left promiscuous mode
[ 1732.212545] br0: port 1(dummy0) entered disabled state