[ 1799.616620] br0: port 1(dummy0) entered blocking state
[ 1799.616691] br0: port 1(dummy0) entered disabled state
[ 1799.616761] dummy0: entered allmulticast mode
[ 1799.616848] dummy0: entered promiscuous mode
[ 1799.619758] br0: port 1(dummy0) entered blocking state
[ 1799.619792] br0: port 1(dummy0) entered forwarding state
[ 1799.820377] dummy0: left allmulticast mode
[ 1799.820405] dummy0: left promiscuous mode
[ 1799.820430] br0: port 1(dummy0) entered disabled state