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到底怎么样才算传输失败,发送方怎么知道,发送失败?



The maximum number of retries allowed after a transmission failure

-DAPSC_MAX_FRAME_RETRIES=3       传输失败后 允许重传的最多次数

请问大家,怎样算传输失败,我发送的时候,用的语句是:AF_DataRequest( &my_DstAddr, &GenericApp_epDesc,GENERICAPP_CLUSTERID,sizeof(temp),temp,&GenericApp_TransID,AF_DISCV_ROUTE,AF_DEFAULT_RADIUS);

到底怎么样才算传输失败,发送方怎么知道,发送失败?