[ 2006.221057] br0: port 1(dummy0) entered blocking state
[ 2006.221126] br0: port 1(dummy0) entered disabled state
[ 2006.221196] dummy0: entered allmulticast mode
[ 2006.221279] dummy0: entered promiscuous mode
[ 2006.224108] br0: port 1(dummy0) entered blocking state
[ 2006.224139] br0: port 1(dummy0) entered forwarding state
[ 2006.421066] dummy0: left allmulticast mode
[ 2006.421094] dummy0: left promiscuous mode
[ 2006.421128] br0: port 1(dummy0) entered disabled state