Tip: Take extra care for drivers that include features like TTL (Time to Live), such as connection-oriented networking device drivers.

提示： 对于那些具有 TTL（生存时间）的驱动程序要格外注意，例如面向连接的网络设备驱动程序。

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Computers cache the name-to-IP mapping for a certain period of time, known as the time to live (TTL), to reduce overall response time.

计算机将这个名称缓存到IP映射一段时间，这个时间段称为time to live (ttl)，以减少总响应时间。

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For instance, the inventory response for the parts from an automotive dealership includes a Time-To-Live (TTL) element.

比方说，汽车零售商的零件目录响应中包含一个Time - To - Live (ttl)元素。

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