V2EX netlink

Netlink

Definition / 定义

Netlink:在计算机与网络语境中,通常指“网络连接/网络链路”;在 Linux 领域更常指 Netlink 套接字接口一种用于内核与用户态程序之间传递网络相关信息(如路由、接口状态、防火墙/策略等)的通信机制。(也可能作为公司名或产品名使用,含义依上下文而定。)

Pronunciation / 发音

/netlk/

Examples / 例句

Netlink is used to exchange networking information between the Linux kernel and user space.
Netlink 用于在 Linux 内核与用户态之间交换网络相关信息。

To troubleshoot why routes weren’t updating, she wrote a tool that subscribes to Netlink events and logs interface changes in real time.
为排查路由为何不更新,她写了一个订阅 Netlink 事件的工具,实时记录网卡接口变化。

Etymology / 词源

net(network,网络)+ link(连接、链路)组合而成,字面义是“网络的连接/链路”。在 Linux 里,“Netlink”被用作该内核通信机制的专有名称,强调其与网络子系统信息交换的用途。

Related Words / 相关词

Literary Works / 文学作品

  • The Linux Programming Interface(Michael Kerrisk)涉及 Linux 系统编程与网络相关机制,常提到 Netlink 的使用场景与接口概念。
  • Understanding Linux Network Internals(Christian Benvenuti)讨论 Linux 网络栈内部实现时会涉及 Netlink/RTNetlink 等机制。
  • Linux Device Drivers(Jonathan Corbet 等)在讲解驱动与内核/用户态交互时,可能提及包括 Netlink 在内的通信方式与相关实践。
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