[ 1713.425914] br0: port 1(dummy0) entered blocking state
[ 1713.425992] br0: port 1(dummy0) entered disabled state
[ 1713.426060] dummy0: entered allmulticast mode
[ 1713.426145] dummy0: entered promiscuous mode
[ 1713.428934] br0: port 1(dummy0) entered blocking state
[ 1713.428969] br0: port 1(dummy0) entered forwarding state
[ 1713.614822] dummy0: left allmulticast mode
[ 1713.614865] dummy0: left promiscuous mode
[ 1713.614903] br0: port 1(dummy0) entered disabled state