[ 1798.008911] br0: port 1(dummy0) entered blocking state
[ 1798.008952] br0: port 1(dummy0) entered disabled state
[ 1798.008985] dummy0: entered allmulticast mode
[ 1798.009035] dummy0: entered promiscuous mode
[ 1798.011876] br0: port 1(dummy0) entered blocking state
[ 1798.011938] br0: port 1(dummy0) entered forwarding state
[ 1798.191603] dummy0: left allmulticast mode
[ 1798.191637] dummy0: left promiscuous mode
[ 1798.191665] br0: port 1(dummy0) entered disabled state