[ 1658.958746] br0: port 1(dummy0) entered blocking state
[ 1658.958827] br0: port 1(dummy0) entered disabled state
[ 1658.958893] dummy0: entered allmulticast mode
[ 1658.958974] dummy0: entered promiscuous mode
[ 1658.961436] br0: port 1(dummy0) entered blocking state
[ 1658.961472] br0: port 1(dummy0) entered forwarding state
[ 1659.138346] dummy0: left allmulticast mode
[ 1659.138386] dummy0: left promiscuous mode
[ 1659.138414] br0: port 1(dummy0) entered disabled state