[ 1580.911275] br0: port 1(dummy0) entered blocking state
[ 1580.911330] br0: port 1(dummy0) entered disabled state
[ 1580.911370] dummy0: entered allmulticast mode
[ 1580.911418] dummy0: entered promiscuous mode
[ 1580.913883] br0: port 1(dummy0) entered blocking state
[ 1580.913918] br0: port 1(dummy0) entered forwarding state
[ 1581.094103] dummy0: left allmulticast mode
[ 1581.094136] dummy0: left promiscuous mode
[ 1581.094164] br0: port 1(dummy0) entered disabled state