[ 1676.674206] br0: port 1(dummy0) entered blocking state
[ 1676.674280] br0: port 1(dummy0) entered disabled state
[ 1676.674358] dummy0: entered allmulticast mode
[ 1676.674449] dummy0: entered promiscuous mode
[ 1676.677480] br0: port 1(dummy0) entered blocking state
[ 1676.677519] br0: port 1(dummy0) entered forwarding state
[ 1676.889674] dummy0: left allmulticast mode
[ 1676.889754] dummy0: left promiscuous mode
[ 1676.889822] br0: port 1(dummy0) entered disabled state