[ 1764.900591] br0: port 1(dummy0) entered blocking state
[ 1764.900666] br0: port 1(dummy0) entered disabled state
[ 1764.900733] dummy0: entered allmulticast mode
[ 1764.900837] dummy0: entered promiscuous mode
[ 1764.903682] br0: port 1(dummy0) entered blocking state
[ 1764.903712] br0: port 1(dummy0) entered forwarding state
[ 1765.101598] dummy0: left allmulticast mode
[ 1765.101626] dummy0: left promiscuous mode
[ 1765.101653] br0: port 1(dummy0) entered disabled state