[ 1630.846518] br0: port 1(dummy0) entered blocking state
[ 1630.846565] br0: port 1(dummy0) entered disabled state
[ 1630.846597] dummy0: entered allmulticast mode
[ 1630.846649] dummy0: entered promiscuous mode
[ 1630.849243] br0: port 1(dummy0) entered blocking state
[ 1630.849306] br0: port 1(dummy0) entered forwarding state
[ 1631.032203] dummy0: left allmulticast mode
[ 1631.032274] dummy0: left promiscuous mode
[ 1631.032305] br0: port 1(dummy0) entered disabled state