[ 1810.771410] br0: port 1(dummy0) entered blocking state
[ 1810.771443] br0: port 1(dummy0) entered disabled state
[ 1810.771493] dummy0: entered allmulticast mode
[ 1810.771565] dummy0: entered promiscuous mode
[ 1810.775214] br0: port 1(dummy0) entered blocking state
[ 1810.775245] br0: port 1(dummy0) entered forwarding state
[ 1811.034529] dummy0: left allmulticast mode
[ 1811.034559] dummy0: left promiscuous mode
[ 1811.034582] br0: port 1(dummy0) entered disabled state