V2EX traffic-shaping

Traffic-Shaping

Definition / 定义

traffic-shaping(流量整形/流量塑形):一种网络管理技术,通过控制数据包发送速率与突发流量(常用队列、缓冲与限速算法),把不规则、瞬时拥塞的流量“整形”为更平滑、可预测的输出,以减少拥塞、抖动并帮助满足带宽与延迟等服务质量(QoS)要求。(在网络语境下也可泛指“带宽整形”。)

Pronunciation / 发音

/trfk ep/

Examples / 例句

The router uses traffic-shaping to limit video streaming at night.
路由器使用流量整形在夜间限制视频流媒体的带宽。

Without traffic-shaping, sudden bursts from backups can cause high latency for voice calls, even if average bandwidth looks fine.
如果没有流量整形,备份产生的瞬时突发流量可能会让语音通话出现高延迟,即使平均带宽看起来并不紧张。

Etymology / 词源

traffic 原指“交通、往来”,在计算机网络中引申为“数据流量”;shaping 来自 shape(塑形、定形),表示“把某种输出调整成特定形态”。合起来即“把网络流量调整成更平滑、更符合策略或QoS目标的形态”。该术语在网络工程与电信领域广泛使用,常与“policing(流量监管/丢弃超额)”对比:整形更偏向

Related Words / 相关词

Literary Works / 文学作品

  • RFC 2475 An Architecture for Differentiated Services(讨论QoS与相关流量处理概念,常与整形/监管一起出现)
  • Andrew S. Tanenbaum & David J. Wetherall, Computer Networks(教材中涉及拥塞控制、队列与流量管理术语)
  • James F. Kurose & Keith W. Ross, Computer Networking: A Top-Down Approach(网络性能、排队与流量控制相关章节)
  • Ilya Grigorik, High Performance Browser Networking(涉及网络性能与带宽/延迟管理的工程语境)
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