[ 1866.561291] br0: port 1(dummy0) entered blocking state
[ 1866.561340] br0: port 1(dummy0) entered disabled state
[ 1866.561378] dummy0: entered allmulticast mode
[ 1866.561435] dummy0: entered promiscuous mode
[ 1866.565058] br0: port 1(dummy0) entered blocking state
[ 1866.565091] br0: port 1(dummy0) entered forwarding state
[ 1866.830469] dummy0: left allmulticast mode
[ 1866.830509] dummy0: left promiscuous mode
[ 1866.830570] br0: port 1(dummy0) entered disabled state