[ 1675.108878] br0: port 1(dummy0) entered blocking state
[ 1675.108932] br0: port 1(dummy0) entered disabled state
[ 1675.108967] dummy0: entered allmulticast mode
[ 1675.109017] dummy0: entered promiscuous mode
[ 1675.111791] br0: port 1(dummy0) entered blocking state
[ 1675.111861] br0: port 1(dummy0) entered forwarding state
[ 1675.293431] dummy0: left allmulticast mode
[ 1675.293461] dummy0: left promiscuous mode
[ 1675.293488] br0: port 1(dummy0) entered disabled state