> I'm curious why this is done at QP creation time. Should this not > be done at multicast join time? A single QP can be a member of more > than one MC group, would it not seem more correct to you that the > loopback should be specified on a per group basis and not a per QP > basis?
I agree with Doug here. This makes more sense to specify on multicast attach time, not QP creation time.
