[ 1593.383864] br0: port 1(dummy0) entered blocking state
[ 1593.383943] br0: port 1(dummy0) entered disabled state
[ 1593.384006] dummy0: entered allmulticast mode
[ 1593.384095] dummy0: entered promiscuous mode
[ 1593.386561] br0: port 1(dummy0) entered blocking state
[ 1593.386594] br0: port 1(dummy0) entered forwarding state
[ 1593.549225] dummy0: left allmulticast mode
[ 1593.549286] dummy0: left promiscuous mode
[ 1593.549346] br0: port 1(dummy0) entered disabled state