V2EX subnetting

Subnetting

释义 Definition

子网划分;子网划分技术:在计算机网络中,把一个较大的 IP 网络按规则切分成多个更小的子网(subnet),以便更高效地分配地址、隔离广播域、提升管理与安全性。(常与“子网掩码/前缀长度、CIDR、路由”一起出现)

发音 Pronunciation (IPA)

/sbnt/

例句 Examples

Subnetting helps a company use its IP addresses more efficiently.
子网划分能帮助公司更高效地使用 IP 地址。

By subnetting the network into smaller segments, the IT team reduced broadcast traffic and improved security controls.
通过把网络划分为更小的子网,IT 团队减少了广播流量,并加强了安全控制。

词源 Etymology

subnetting 来自 subnet(子网)+ -ing(表示“进行……的过程/做法”)。subnet 本身由 **sub-**(“次级的、下层的”)和 net(network,“网络”)构成,字面意思是“网络中的次级网络”,引申为“子网”。

相关词 Related Words

文学与经典作品 Literary Works

  • Computer Networks(Andrew S. Tanenbaum, David J. Wetherall)网络分层与 IP 编址章节常讨论子网与子网划分。
  • TCP/IP Illustrated, Volume 1: The Protocols(W. Richard Stevens)涉及 IP 地址、子网掩码与路由行为的讲解。
  • CCNA 200-301 Official Cert Guide(Wendell Odom)认证教材中“IPv4 addressing / subnetting”是核心内容之一。
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