[ 1715.340563] br0: port 1(dummy0) entered blocking state
[ 1715.340604] br0: port 1(dummy0) entered disabled state
[ 1715.340639] dummy0: entered allmulticast mode
[ 1715.340691] dummy0: entered promiscuous mode
[ 1715.343242] br0: port 1(dummy0) entered blocking state
[ 1715.343302] br0: port 1(dummy0) entered forwarding state
[ 1715.524430] dummy0: left allmulticast mode
[ 1715.524462] dummy0: left promiscuous mode
[ 1715.524492] br0: port 1(dummy0) entered disabled state