[ 1860.264985] br0: port 1(dummy0) entered blocking state
[ 1860.265058] br0: port 1(dummy0) entered disabled state
[ 1860.265137] dummy0: entered allmulticast mode
[ 1860.265219] dummy0: entered promiscuous mode
[ 1860.268844] br0: port 1(dummy0) entered blocking state
[ 1860.268877] br0: port 1(dummy0) entered forwarding state
[ 1860.520220] dummy0: left allmulticast mode
[ 1860.520257] dummy0: left promiscuous mode
[ 1860.520333] br0: port 1(dummy0) entered disabled state