[ 1657.640251] br0: port 1(dummy0) entered blocking state
[ 1657.640293] br0: port 1(dummy0) entered disabled state
[ 1657.640326] dummy0: entered allmulticast mode
[ 1657.640375] dummy0: entered promiscuous mode
[ 1657.642876] br0: port 1(dummy0) entered blocking state
[ 1657.642935] br0: port 1(dummy0) entered forwarding state
[ 1657.820776] dummy0: left allmulticast mode
[ 1657.820809] dummy0: left promiscuous mode
[ 1657.820835] br0: port 1(dummy0) entered disabled state