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请问怎么样确认对方收到了AF_DataRequest发出的数据包?

  if ( AF_DataRequest( &SampleApp_Periodic_DstAddr, &SampleApp_epDesc,
                      SAMPLEAPP_PERIODIC_CLUSTERID,
                      1,
                      &index,
                      &SampleApp_TransID,
                      AF_DISCV_ROUTE,
                      AF_DEFAULT_RADIUS ) == afStatus_SUCCESS ) 
的afStatus_SUCCESS是指数据成功发出去了吗?
怎么样知道对方是否成功收到了本次发送的数据?