[ 1870.458073] br0: port 1(dummy0) entered blocking state
[ 1870.458126] br0: port 1(dummy0) entered disabled state
[ 1870.458164] dummy0: entered allmulticast mode
[ 1870.458215] dummy0: entered promiscuous mode
[ 1870.461877] br0: port 1(dummy0) entered blocking state
[ 1870.461943] br0: port 1(dummy0) entered forwarding state
[ 1870.737189] dummy0: left allmulticast mode
[ 1870.737232] dummy0: left promiscuous mode
[ 1870.737334] br0: port 1(dummy0) entered disabled state