[ 1549.360015] br0: port 1(dummy0) entered blocking state
[ 1549.360083] br0: port 1(dummy0) entered disabled state
[ 1549.360157] dummy0: entered allmulticast mode
[ 1549.360241] dummy0: entered promiscuous mode
[ 1549.362713] br0: port 1(dummy0) entered blocking state
[ 1549.362749] br0: port 1(dummy0) entered forwarding state
[ 1549.539308] dummy0: left allmulticast mode
[ 1549.539342] dummy0: left promiscuous mode
[ 1549.539372] br0: port 1(dummy0) entered disabled state