[ 2235.588462][ T8182] br0: port 1(dummy0) entered blocking state
[ 2235.588656][ T8182] br0: port 1(dummy0) entered disabled state
[ 2235.588816][ T8182] dummy0: entered allmulticast mode
[ 2235.589691][ T8182] dummy0: entered promiscuous mode
[ 2235.613689][ T8183] br0: port 1(dummy0) entered blocking state
[ 2235.613910][ T8183] br0: port 1(dummy0) entered forwarding state
[ 2237.627487][   T12] dummy0: left allmulticast mode
[ 2237.627683][   T12] dummy0: left promiscuous mode
[ 2237.627925][   T12] br0: port 1(dummy0) entered disabled state