[ 1592.631730] br0: port 1(dummy0) entered blocking state
[ 1592.631823] br0: port 1(dummy0) entered disabled state
[ 1592.631893] dummy0: entered allmulticast mode
[ 1592.631981] dummy0: entered promiscuous mode
[ 1592.634914] br0: port 1(dummy0) entered blocking state
[ 1592.634946] br0: port 1(dummy0) entered forwarding state
[ 1592.824284] dummy0: left allmulticast mode
[ 1592.824322] dummy0: left promiscuous mode
[ 1592.824384] br0: port 1(dummy0) entered disabled state