Roland Dreier <rdreier at cisco.com> wrote on 09.07.2007 23:35:31: > Out of curiousity, does this mean that a GRH will be sent on all UD > messages (for non-LL QPs)? No - the bit instructs the hardware to fetch the GRH parts of the QP context. The GRH will only be used if the WQE says so. Joachim