[ 1799.568856] br0: port 1(dummy0) entered blocking state
[ 1799.568897] br0: port 1(dummy0) entered disabled state
[ 1799.568932] dummy0: entered allmulticast mode
[ 1799.568987] dummy0: entered promiscuous mode
[ 1799.572608] br0: port 1(dummy0) entered blocking state
[ 1799.572678] br0: port 1(dummy0) entered forwarding state
[ 1799.826085] dummy0: left allmulticast mode
[ 1799.826125] dummy0: left promiscuous mode
[ 1799.826154] br0: port 1(dummy0) entered disabled state