If the listen queue of the RAP-processing listener overflows because a concentrated number of connect() is issued, the error code ECONNREFUSED returns. When this code returns, issue connect() again. Specify the retry count and retry interval for connect() in the DCEPL_CONNECT_RETRY_COUNT and DCFPL_CONNECT_RETRY_INTERVAL operands of the user service definition. In the RAP-processing listener service definition, specify the rap_connect_retry_count and rap_connect_retry_interval operands and then execute the rapdfgen command.