| 摘要 |
When a kind of statistic information to be extracted depends on a user policy and the kind of the statistic information is unable to be preliminarily specified, in order to provide a statistic information extraction method and device which can accommodate thereto, a table for retrieving a pattern to which a user policy is reflected is set, the pattern is retrieved from received packets based on the table, and statistic information of the pattern retrieved is stored. Also, whether or not the received packet should be made a learning object is set in the table, and a pattern unable to be retrieved is added to the table if the received packet is set as the learning object in the table when the pattern is unable to be retrieved.
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