[ 1715.459792] br0: port 1(dummy0) entered blocking state
[ 1715.459834] br0: port 1(dummy0) entered disabled state
[ 1715.459872] dummy0: entered allmulticast mode
[ 1715.459921] dummy0: entered promiscuous mode
[ 1715.462753] br0: port 1(dummy0) entered blocking state
[ 1715.462820] br0: port 1(dummy0) entered forwarding state
[ 1715.661019] dummy0: left allmulticast mode
[ 1715.661051] dummy0: left promiscuous mode
[ 1715.661081] br0: port 1(dummy0) entered disabled state