[ 2089.308505] br0: port 1(dummy0) entered blocking state
[ 2089.308570] br0: port 1(dummy0) entered disabled state
[ 2089.308637] dummy0: entered allmulticast mode
[ 2089.308716] dummy0: entered promiscuous mode
[ 2089.312361] br0: port 1(dummy0) entered blocking state
[ 2089.312393] br0: port 1(dummy0) entered forwarding state
[ 2089.567920] dummy0: left allmulticast mode
[ 2089.567954] dummy0: left promiscuous mode
[ 2089.567983] br0: port 1(dummy0) entered disabled state