[ 2178.388852][ T6256] br0: port 1(dummy0) entered blocking state
[ 2178.389161][ T6256] br0: port 1(dummy0) entered disabled state
[ 2178.389778][ T6256] dummy0: entered allmulticast mode
[ 2178.390756][ T6256] dummy0: entered promiscuous mode
[ 2178.427389][ T6257] br0: port 1(dummy0) entered blocking state
[ 2178.427702][ T6257] br0: port 1(dummy0) entered forwarding state
[ 2180.916182][   T62] dummy0: left allmulticast mode
[ 2180.916563][   T62] dummy0: left promiscuous mode
[ 2180.916971][   T62] br0: port 1(dummy0) entered disabled state