[ 1814.623077] br0: port 1(dummy0) entered blocking state
[ 1814.623131] br0: port 1(dummy0) entered disabled state
[ 1814.623155] dummy0: entered allmulticast mode
[ 1814.623202] dummy0: entered promiscuous mode
[ 1814.627641] br0: port 1(dummy0) entered blocking state
[ 1814.627690] br0: port 1(dummy0) entered forwarding state
[ 1814.952199] dummy0: left allmulticast mode
[ 1814.952253] dummy0: left promiscuous mode
[ 1814.952275] br0: port 1(dummy0) entered disabled state