[ 1841.823429] br0: port 1(dummy0) entered blocking state
[ 1841.823476] br0: port 1(dummy0) entered disabled state
[ 1841.823509] dummy0: entered allmulticast mode
[ 1841.823560] dummy0: entered promiscuous mode
[ 1841.826990] br0: port 1(dummy0) entered blocking state
[ 1841.827022] br0: port 1(dummy0) entered forwarding state
[ 1842.068270] dummy0: left allmulticast mode
[ 1842.068330] dummy0: left promiscuous mode
[ 1842.068401] br0: port 1(dummy0) entered disabled state