| 摘要 |
<p>PURPOSE:To prevent different packets from being coupled together, by collating pieces of key information of split and stored packets given at the time of reception when those packets are coupled together. CONSTITUTION:When transferring packets to a CCE (communication controller) by packet transmission, a CPU informs the CCE of key information reported during reception together with addresses of a PM (packet storage memory) wherein the packets to be coupled are stored. A BKC (buffer key control part) collates the key information added to the packet stored in the PM address reported from the CPU with the key information reported from the CPU. When the collation result shows coincidence, the CCE after removing the key information from the packets stored in the PM couples those packets and sends them to a circuit. When they are not coincident, the CPU is instructed to discard the packets.</p> |
