[ 1568.731750] br0: port 1(dummy0) entered blocking state
[ 1568.731819] br0: port 1(dummy0) entered disabled state
[ 1568.731884] dummy0: entered allmulticast mode
[ 1568.732006] dummy0: entered promiscuous mode
[ 1568.734558] br0: port 1(dummy0) entered blocking state
[ 1568.734593] br0: port 1(dummy0) entered forwarding state
[ 1568.907004] dummy0: left allmulticast mode
[ 1568.907037] dummy0: left promiscuous mode
[ 1568.907064] br0: port 1(dummy0) entered disabled state