[ 1734.406454] br0: port 1(dummy0) entered blocking state
[ 1734.406526] br0: port 1(dummy0) entered disabled state
[ 1734.406596] dummy0: entered allmulticast mode
[ 1734.406689] dummy0: entered promiscuous mode
[ 1734.410125] br0: port 1(dummy0) entered blocking state
[ 1734.410157] br0: port 1(dummy0) entered forwarding state
[ 1734.644679] dummy0: left allmulticast mode
[ 1734.644713] dummy0: left promiscuous mode
[ 1734.644743] br0: port 1(dummy0) entered disabled state