WebTime to live (TTL) or hop limit is a mechanism which limits the lifespan or lifetime of data in a computer or network. TTL may be implemented as a counter or timestamp attached to or embedded in the data. Once the prescribed event count or timespan has elapsed, data is discarded or revalidated. In computer networking, TTL prevents a data packet from … Web当贝社区官方论坛是当贝投影仪、电视盒子的用户大本营,提供交流分享、使用技巧、玩机刷机、问题反馈的互动互助平台,可以第一时间了解到当贝的最新动态。
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