code: private void forwardMessage(AbstractMessage aMessage,
                                  SIBUuid8 targetMEUuid)
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "forwardMessage",
                    new Object[]{aMessage, targetMEUuid});
  
      if (TraceComponent.isAnyTracingEnabled() && UserTrace.tc_mt.isDebugEnabled() && !aMessage.isControlMessage())
      {
        JsMessage jsMsg = (JsMessage) aMessage;
        JsDestinationAddress routingDestination = jsMsg.getRoutingDestination();
        if(routingDestination != null)
        {
          String destId = routingDestination.getDestinationName();
          boolean temporary = false;
          if(destId.startsWith(SIMPConstants.TEMPORARY_PUBSUB_DESTINATION_PREFIX))
            temporary = true;
  
          UserTrace.forwardJSMessage(jsMsg,
                                     targetMEUuid,
                                     destId,
                                     temporary);
        }
        else
        {
          DestinationHandler dest =
            _destinationManager.getDestinationInternal(aMessage.getGuaranteedTargetDestinationDefinitionUUID(), false);
  
          if (dest != null)
            UserTrace.forwardJSMessage(jsMsg,
                                       targetMEUuid,
                                       dest.getName(),
                                       dest.isTemporary());
          else
            UserTrace.forwardJSMessage(jsMsg,
                                       targetMEUuid,
                                       jsMsg.getGuaranteedTargetDestinationDefinitionUUID().toString(),
                                       false);
        }
  
      }
  
      // Send this to MPIO
      _mpio.sendToMe( targetMEUuid,
                      aMessage.getPriority().intValue(),
                      aMessage );
  
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
           SibTr.exit(tc, "forwardMessage");
    }
docs: Forwards a message onto a foreign bus
  @param aMessage
  @param sourceCellule
  @param targetCellule