[ 1667.837719] br0: port 1(dummy0) entered blocking state
[ 1667.837807] br0: port 1(dummy0) entered disabled state
[ 1667.837871] dummy0: entered allmulticast mode
[ 1667.837963] dummy0: entered promiscuous mode
[ 1667.841172] br0: port 1(dummy0) entered blocking state
[ 1667.841234] br0: port 1(dummy0) entered forwarding state
[ 1668.057284] dummy0: left allmulticast mode
[ 1668.057315] dummy0: left promiscuous mode
[ 1668.057337] br0: port 1(dummy0) entered disabled state