[ 1569.932627] br0: port 1(dummy0) entered blocking state
[ 1569.932663] br0: port 1(dummy0) entered disabled state
[ 1569.932696] dummy0: entered allmulticast mode
[ 1569.932757] dummy0: entered promiscuous mode
[ 1569.935553] br0: port 1(dummy0) entered blocking state
[ 1569.935582] br0: port 1(dummy0) entered forwarding state
[ 1570.124315] dummy0: left allmulticast mode
[ 1570.124343] dummy0: left promiscuous mode
[ 1570.124367] br0: port 1(dummy0) entered disabled state