[ 1717.725094] br0: port 1(dummy0) entered blocking state
[ 1717.725127] br0: port 1(dummy0) entered disabled state
[ 1717.725216] dummy0: entered allmulticast mode
[ 1717.725305] dummy0: entered promiscuous mode
[ 1717.728567] br0: port 1(dummy0) entered blocking state
[ 1717.728597] br0: port 1(dummy0) entered forwarding state
[ 1717.970283] dummy0: left allmulticast mode
[ 1717.970314] dummy0: left promiscuous mode
[ 1717.970361] br0: port 1(dummy0) entered disabled state