[ 1665.649297] br0: port 1(dummy0) entered blocking state
[ 1665.649350] br0: port 1(dummy0) entered disabled state
[ 1665.649372] dummy0: entered allmulticast mode
[ 1665.649417] dummy0: entered promiscuous mode
[ 1665.652628] br0: port 1(dummy0) entered blocking state
[ 1665.652699] br0: port 1(dummy0) entered forwarding state
[ 1665.865410] dummy0: left allmulticast mode
[ 1665.865451] dummy0: left promiscuous mode
[ 1665.865478] br0: port 1(dummy0) entered disabled state