[ 1914.805046] br0: port 1(dummy0) entered blocking state
[ 1914.805106] br0: port 1(dummy0) entered disabled state
[ 1914.805131] dummy0: entered allmulticast mode
[ 1914.805173] dummy0: entered promiscuous mode
[ 1914.809321] br0: port 1(dummy0) entered blocking state
[ 1914.809367] br0: port 1(dummy0) entered forwarding state
[ 1915.094330] dummy0: left allmulticast mode
[ 1915.094420] dummy0: left promiscuous mode
[ 1915.094486] br0: port 1(dummy0) entered disabled state