[ 1785.222017] br0: port 1(dummy0) entered blocking state
[ 1785.222057] br0: port 1(dummy0) entered disabled state
[ 1785.222092] dummy0: entered allmulticast mode
[ 1785.222144] dummy0: entered promiscuous mode
[ 1785.225625] br0: port 1(dummy0) entered blocking state
[ 1785.225657] br0: port 1(dummy0) entered forwarding state
[ 1785.449461] dummy0: left allmulticast mode
[ 1785.449491] dummy0: left promiscuous mode
[ 1785.449518] br0: port 1(dummy0) entered disabled state