[ 1841.761832] br0: port 1(dummy0) entered blocking state
[ 1841.761894] br0: port 1(dummy0) entered disabled state
[ 1841.761934] dummy0: entered allmulticast mode
[ 1841.761984] dummy0: entered promiscuous mode
[ 1841.765450] br0: port 1(dummy0) entered blocking state
[ 1841.765512] br0: port 1(dummy0) entered forwarding state
[ 1842.010852] dummy0: left allmulticast mode
[ 1842.010886] dummy0: left promiscuous mode
[ 1842.010913] br0: port 1(dummy0) entered disabled state