[ 1782.519164] br0: port 1(dummy0) entered blocking state
[ 1782.519201] br0: port 1(dummy0) entered disabled state
[ 1782.519233] dummy0: entered allmulticast mode
[ 1782.519285] dummy0: entered promiscuous mode
[ 1782.522864] br0: port 1(dummy0) entered blocking state
[ 1782.522926] br0: port 1(dummy0) entered forwarding state
[ 1782.783759] dummy0: left allmulticast mode
[ 1782.783797] dummy0: left promiscuous mode
[ 1782.783855] br0: port 1(dummy0) entered disabled state