[ 1911.181052] br0: port 1(dummy0) entered blocking state
[ 1911.181130] br0: port 1(dummy0) entered disabled state
[ 1911.181195] dummy0: entered allmulticast mode
[ 1911.181274] dummy0: entered promiscuous mode
[ 1911.184680] br0: port 1(dummy0) entered blocking state
[ 1911.184715] br0: port 1(dummy0) entered forwarding state
[ 1911.423185] dummy0: left allmulticast mode
[ 1911.423249] dummy0: left promiscuous mode
[ 1911.423278] br0: port 1(dummy0) entered disabled state