[ 1569.615274] br0: port 1(dummy0) entered blocking state
[ 1569.615322] br0: port 1(dummy0) entered disabled state
[ 1569.615351] dummy0: entered allmulticast mode
[ 1569.615413] dummy0: entered promiscuous mode
[ 1569.617871] br0: port 1(dummy0) entered blocking state
[ 1569.617931] br0: port 1(dummy0) entered forwarding state
[ 1569.786094] dummy0: left allmulticast mode
[ 1569.786129] dummy0: left promiscuous mode
[ 1569.786187] br0: port 1(dummy0) entered disabled state