[ 1864.269035] br0: port 1(dummy0) entered blocking state
[ 1864.269114] br0: port 1(dummy0) entered disabled state
[ 1864.269184] dummy0: entered allmulticast mode
[ 1864.269275] dummy0: entered promiscuous mode
[ 1864.273074] br0: port 1(dummy0) entered blocking state
[ 1864.273112] br0: port 1(dummy0) entered forwarding state
[ 1864.545421] dummy0: left allmulticast mode
[ 1864.545462] dummy0: left promiscuous mode
[ 1864.545502] br0: port 1(dummy0) entered disabled state