V2EX datagram

Datagram

释义 Definition

(计算机网络)数据报:在分组交换网络中传输的一段独立数据单元,通常不建立连接、可独立路由到达;不保证按序到达或必然送达(常见于 UDP/IP 语境)。另有较少见含义指“电报式短消息”。

发音 Pronunciation (IPA)

/detrm/

例句 Examples

The app sends a small datagram every second.
这个应用每秒发送一个小的数据报。

Even if one datagram is lost, the video call can still continue with minor glitches.
即使丢失了一个数据报,视频通话通常仍能继续,只是可能出现轻微卡顿。

词源 Etymology

datagramdata(数据)+ -gram(“书写/记录/信息”的后缀,源自希腊语 gramma)构成,字面意思接近“数据消息/数据记录”。该词在分组交换与互联网协议发展过程中被广泛采用,用来强调“像电报一样的独立消息单元”,尤其与无连接传输相关。

相关词 Related Words

文献与作品 Literary/Notable Works

  • 《RFC 768: User Datagram Protocol》:UDP 的定义与“datagram”的核心语境
  • 《RFC 791: Internet Protocol》:IP 层“IP datagram”的经典表述
  • W. Richard Stevens《TCP/IP Illustrated, Volume 1》:大量使用“datagram/UDP datagram”讲解实现细节
  • Andrew S. Tanenbaum《Computer Networks》:在分组交换与传输层章节中系统讨论数据报网络
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