[ 1753.803792] br0: port 1(dummy0) entered blocking state
[ 1753.803836] br0: port 1(dummy0) entered disabled state
[ 1753.803867] dummy0: entered allmulticast mode
[ 1753.803922] dummy0: entered promiscuous mode
[ 1753.806348] br0: port 1(dummy0) entered blocking state
[ 1753.806385] br0: port 1(dummy0) entered forwarding state
[ 1753.993046] dummy0: left allmulticast mode
[ 1753.993079] dummy0: left promiscuous mode
[ 1753.993108] br0: port 1(dummy0) entered disabled state