If the reorganization technology is not mature, there will be a variety of packet loss, the wrong group of cases, to protect the database disaster.

若重组技术不成熟，将出现各种丢包、错组的情况，给数据库防护带来灾难。

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The aging time is the number of seconds a MAC address will be kept in the forwarding database after having received a packet from this MAC address.

生存期是在接收一个包后其MAC地址保存在转发数据库中的秒数。

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Stateful inspection: a newer method that doesn't examine the contents of each packet but instead compares certain key parts of the packet to a database of trusted information.

状态检查：一种更新的方法，并不检查每个数据包的内容，而是将数据包的某个关键部分与一个可信的信息数据库比较。

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