[ 1582.984864] br0: port 1(dummy0) entered blocking state
[ 1582.984945] br0: port 1(dummy0) entered disabled state
[ 1582.985015] dummy0: entered allmulticast mode
[ 1582.985106] dummy0: entered promiscuous mode
[ 1582.987717] br0: port 1(dummy0) entered blocking state
[ 1582.987781] br0: port 1(dummy0) entered forwarding state
[ 1583.169470] dummy0: left allmulticast mode
[ 1583.169505] dummy0: left promiscuous mode
[ 1583.169597] br0: port 1(dummy0) entered disabled state