[ 1764.103421] br0: port 1(dummy0) entered blocking state
[ 1764.103465] br0: port 1(dummy0) entered disabled state
[ 1764.103502] dummy0: entered allmulticast mode
[ 1764.103553] dummy0: entered promiscuous mode
[ 1764.107147] br0: port 1(dummy0) entered blocking state
[ 1764.107180] br0: port 1(dummy0) entered forwarding state
[ 1764.360274] dummy0: left allmulticast mode
[ 1764.360343] dummy0: left promiscuous mode
[ 1764.360404] br0: port 1(dummy0) entered disabled state