| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a data delivery system where calculation of a check sum in the case of generating a packet is conducted at a high speed and a packet is generated at a high speed even when a packet transfer unit differs for each occasion of data delivery. SOLUTION: A data delivery method is employed for a data delivery system where a check code is written in each packet when data are assembled into the packet and delivered. In the case of receiving a data delivery request from a client, it is examined whether or not a check code calculated for each packet transfer unit depending on the client is stored in a temporary storage section 22 with respect to the data, and when not stored, the check code for the data for each unit of transferred packets is calculated and stored in the temporary storage section 22, the data are divided to generate packets and the check code to be written to each packet is calculated by utilizing the check code for each packet transfer unit with respect to the data that have already been calculated.</p> |
