[ 1589.606475] br0: port 1(dummy0) entered blocking state
[ 1589.606521] br0: port 1(dummy0) entered disabled state
[ 1589.606558] dummy0: entered allmulticast mode
[ 1589.606613] dummy0: entered promiscuous mode
[ 1589.609449] br0: port 1(dummy0) entered blocking state
[ 1589.609478] br0: port 1(dummy0) entered forwarding state
[ 1589.794872] dummy0: left allmulticast mode
[ 1589.794904] dummy0: left promiscuous mode
[ 1589.794935] br0: port 1(dummy0) entered disabled state