V2EX tftp

TFTP

释义 Definition

TFTPTrivial File Transfer Protocol 的缩写,中文常译为简单文件传输协议。它是一种基于 UDP 的轻量级文件传输协议,常用于局域网内的设备启动(PXE)网络设备配置/固件传输等场景;功能比 FTP 更少,通常也缺少登录认证与加密。(在某些环境中也可能指代相应的 tftp 客户端/服务器程序。)

发音 Pronunciation (IPA)

/tiftipi/

例句 Examples

The router downloads its startup config via TFTP.
路由器通过 TFTP 下载启动配置。

During the PXE boot process, the client uses TFTP to fetch the bootloader and then switches to other protocols for the rest of the installation.
在 PXE 网络启动过程中,客户端用 TFTP 获取引导程序,然后再切换到其他协议完成后续安装。

词源 Etymology

TFTP 来自首字母缩写 Trivial File Transfer Protocoltrivial 在这里强调“极简、功能很少”,表示它相对 FTP 更轻量,设计目标是便于实现与在受限环境中使用(例如早期或嵌入式设备的启动场景)。

相关词 Related Words

文献与作品 Literary/Notable Works

  • RFC 1350 *The TFTP Protocol (Revision 2)*(TFTP 的经典规范文档)
  • RFC 2347 / RFC 2348 / RFC 2349(TFTP 选项扩展与块大小、超时等参数)
  • W. Richard Stevens, TCP/IP Illustrated, Volume 1(常见 TCP/IP 参考书中会提及 TFTP 及其在 UDP 上的工作方式)
  • Radia Perlman, Interconnections: Bridges, Routers, Switches, and Internetworking Protocols(网络设备与协议相关内容中常涉及 TFTP 的运维用途)
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