[ 1829.532073] br0: port 1(dummy0) entered blocking state
[ 1829.532112] br0: port 1(dummy0) entered disabled state
[ 1829.532148] dummy0: entered allmulticast mode
[ 1829.532186] dummy0: entered promiscuous mode
[ 1829.535408] br0: port 1(dummy0) entered blocking state
[ 1829.535458] br0: port 1(dummy0) entered forwarding state
[ 1829.771243] dummy0: left allmulticast mode
[ 1829.771269] dummy0: left promiscuous mode
[ 1829.771289] br0: port 1(dummy0) entered disabled state