[ 1716.522371] br0: port 1(dummy0) entered blocking state
[ 1716.522415] br0: port 1(dummy0) entered disabled state
[ 1716.522448] dummy0: entered allmulticast mode
[ 1716.522496] dummy0: entered promiscuous mode
[ 1716.524870] br0: port 1(dummy0) entered blocking state
[ 1716.524929] br0: port 1(dummy0) entered forwarding state
[ 1716.695070] dummy0: left allmulticast mode
[ 1716.695116] dummy0: left promiscuous mode
[ 1716.695152] br0: port 1(dummy0) entered disabled state