[ 1984.315414][T23081] br0: port 1(dummy0) entered blocking state
[ 1984.315649][T23081] br0: port 1(dummy0) entered disabled state
[ 1984.315856][T23081] dummy0: entered allmulticast mode
[ 1984.317159][T23081] dummy0: entered promiscuous mode
[ 1984.339201][T23082] br0: port 1(dummy0) entered blocking state
[ 1984.339515][T23082] br0: port 1(dummy0) entered forwarding state
[ 1986.288816][   T12] dummy0: left allmulticast mode
[ 1986.289357][   T12] dummy0: left promiscuous mode
[ 1986.289616][   T12] br0: port 1(dummy0) entered disabled state