[ 1788.732469] br0: port 1(dummy0) entered blocking state
[ 1788.732513] br0: port 1(dummy0) entered disabled state
[ 1788.732562] dummy0: entered allmulticast mode
[ 1788.732614] dummy0: entered promiscuous mode
[ 1788.736254] br0: port 1(dummy0) entered blocking state
[ 1788.736291] br0: port 1(dummy0) entered forwarding state
[ 1789.010424] dummy0: left allmulticast mode
[ 1789.010459] dummy0: left promiscuous mode
[ 1789.010490] br0: port 1(dummy0) entered disabled state