[ 1819.955019] br0: port 1(dummy0) entered blocking state
[ 1819.955062] br0: port 1(dummy0) entered disabled state
[ 1819.955101] dummy0: entered allmulticast mode
[ 1819.955151] dummy0: entered promiscuous mode
[ 1819.958884] br0: port 1(dummy0) entered blocking state
[ 1819.958918] br0: port 1(dummy0) entered forwarding state
[ 1820.220543] dummy0: left allmulticast mode
[ 1820.220579] dummy0: left promiscuous mode
[ 1820.220613] br0: port 1(dummy0) entered disabled state