[ 1715.492835] br0: port 1(dummy0) entered blocking state
[ 1715.492887] br0: port 1(dummy0) entered disabled state
[ 1715.492920] dummy0: entered allmulticast mode
[ 1715.492976] dummy0: entered promiscuous mode
[ 1715.496460] br0: port 1(dummy0) entered blocking state
[ 1715.496497] br0: port 1(dummy0) entered forwarding state
[ 1715.729481] dummy0: left allmulticast mode
[ 1715.729524] dummy0: left promiscuous mode
[ 1715.729559] br0: port 1(dummy0) entered disabled state