[ 1645.702118] br0: port 1(dummy0) entered blocking state
[ 1645.702156] br0: port 1(dummy0) entered disabled state
[ 1645.702191] dummy0: entered allmulticast mode
[ 1645.702248] dummy0: entered promiscuous mode
[ 1645.704712] br0: port 1(dummy0) entered blocking state
[ 1645.704773] br0: port 1(dummy0) entered forwarding state
[ 1645.867153] dummy0: left allmulticast mode
[ 1645.867227] dummy0: left promiscuous mode
[ 1645.867286] br0: port 1(dummy0) entered disabled state