[ 1761.709039] br0: port 1(dummy0) entered blocking state
[ 1761.709066] br0: port 1(dummy0) entered disabled state
[ 1761.709089] dummy0: entered allmulticast mode
[ 1761.709126] dummy0: entered promiscuous mode
[ 1761.712425] br0: port 1(dummy0) entered blocking state
[ 1761.712472] br0: port 1(dummy0) entered forwarding state
[ 1761.964542] dummy0: left allmulticast mode
[ 1761.964563] dummy0: left promiscuous mode
[ 1761.964584] br0: port 1(dummy0) entered disabled state