[ 1629.524314] br0: port 1(dummy0) entered blocking state
[ 1629.524382] br0: port 1(dummy0) entered disabled state
[ 1629.524449] dummy0: entered allmulticast mode
[ 1629.524532] dummy0: entered promiscuous mode
[ 1629.527409] br0: port 1(dummy0) entered blocking state
[ 1629.527473] br0: port 1(dummy0) entered forwarding state
[ 1629.727760] dummy0: left allmulticast mode
[ 1629.727858] dummy0: left promiscuous mode
[ 1629.727921] br0: port 1(dummy0) entered disabled state