[ 1864.450323] br0: port 1(dummy0) entered blocking state
[ 1864.450378] br0: port 1(dummy0) entered disabled state
[ 1864.450416] dummy0: entered allmulticast mode
[ 1864.450464] dummy0: entered promiscuous mode
[ 1864.454087] br0: port 1(dummy0) entered blocking state
[ 1864.454156] br0: port 1(dummy0) entered forwarding state
[ 1864.703742] dummy0: left allmulticast mode
[ 1864.703812] dummy0: left promiscuous mode
[ 1864.703902] br0: port 1(dummy0) entered disabled state