[ 1633.045260] br0: port 1(dummy0) entered blocking state
[ 1633.045302] br0: port 1(dummy0) entered disabled state
[ 1633.045338] dummy0: entered allmulticast mode
[ 1633.045392] dummy0: entered promiscuous mode
[ 1633.048160] br0: port 1(dummy0) entered blocking state
[ 1633.048230] br0: port 1(dummy0) entered forwarding state
[ 1633.240917] dummy0: left allmulticast mode
[ 1633.240949] dummy0: left promiscuous mode
[ 1633.240981] br0: port 1(dummy0) entered disabled state