V2EX data plane

Data Plane

Definition / 释义

数据平面(转发平面):在网络设备或系统中,负责实际处理与转发数据包/流量的部分(例如查表转发、封装/解封装、ACL过滤、QoS排队等)。它通常与负责做出策略与路由决策的控制平面(control plane)相区分。

Pronunciation / 发音

/det plen/, /dt plen/

Examples / 例句

The router’s data plane forwards packets at line rate.
路由器的数据平面以线速转发数据包。

In software-defined networking, the controller manages the control plane while switches implement the data plane to enforce forwarding rules and traffic policies.
在软件定义网络中,控制器负责控制平面,而交换机实现数据平面,用于执行转发规则与流量策略。

Etymology / 词源

data(数据)+ plane(“平面/层面”的引申义)。在工程与计算机语境里,plane 常用来表示系统中的一个“功能层面/域”(如 control plane、management plane)。因此 data plane 字面即“处理数据的层面”,在网络领域进一步固定为“转发/处理实际业务流量的部分”。

Related Words / 相关词

Notable Works / 作品例证

  • RFC 7426 Software-Defined Networking (SDN): Layers and Architecture Terminology(明确使用并区分 data planecontrol plane 等术语)
  • RFC 7149 Software-Defined Networking: A Perspective from within a Service Provider Environment(讨论运营商网络中的控制与数据平面分离)
  • Andrew S. Tanenbaum & David J. Wetherall, Computer Networks(网络体系结构章节常以 data plane/control plane 讲解功能划分)
  • James F. Kurose & Keith W. Ross, Computer Networking: A Top-Down Approach(在路由/转发与网络层讨论中出现 data plane 概念)
  • Paul Goransson & Chuck Black, Software Defined Networks: A Comprehensive Approach(SDN 架构中频繁使用 data plane 术语)
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