IBT_CM_CLOSED_DREQ_RCVD
case IBT_CM_CLOSED_DREQ_RCVD:
case IBT_CM_CLOSED_DREQ_RCVD: /* request to close the channel */
if (evp->cm_event.closed != IBT_CM_CLOSED_DREQ_RCVD) {
close_event_type = IBT_CM_CLOSED_DREQ_RCVD;