Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the rocket domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/practical-tips.com/wp-includes/functions.php on line 6114

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wpforms-lite domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/practical-tips.com/wp-includes/functions.php on line 6114

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the soledad domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/practical-tips.com/wp-includes/functions.php on line 6114

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wordpress-seo domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/practical-tips.com/wp-includes/functions.php on line 6114
子网划分:它是什么,如何工作? - Practical Tips

子网划分:它是什么,如何工作?

by Tobias

子网划分是网络管理员有效管理 IP 地址和优化网络结构不可或缺的工具。

子网划分的基础知识。

通过了解子网划分的基础知识并掌握实施步骤,你可以帮助建立强大、可扩展的网络基础设施。

  • IP 地址是网络中的一个关键概念,用于识别网络上的设备。
  • 子网划分是将较大的 IP 地址空间划分为较小、逻辑上分开的子组(子网)的过程。
  • 这种划分使在不同子网中组织设备和在网络内有效路由数据流量成为可能。
  • 子网掩码定义 IP 地址中多少位用于网络,多少位用于主机标识。
  • 缩写 CIDR 代表无类别域间路由,用于指定 IP 地址和加号,加号指定了特定模式下用于网络标识的位数。例如,网络标识符为 22 位的 IP 地址 192.168.1.0 可以用 CIDR 符号表示为 192.168.1.0/22.

子网划分的优点

子网划分对网络性能、安全性和可扩展性有诸多好处。

  • 它有助于节约使用 IP 地址,避免地址空间出现瓶颈。
  • 子网还可以隔离和分割设备,提高安全性。
  • 子网还有助于管理大型网络中的设备、服务和资源。

子网划分步骤和技术

实施子网划分需要清晰的规划和精确的执行。

  •  首先确定每个子网所需的子网和主机数量。为子网和主机标识选择适当的位数。
  • 作为管理员,必须确定子网掩码,以便为所需主机留出足够的空间。为此,您需要使用一个数学公式:x = 2^n – 2。在这种情况下,您仍然需要使用二进制系统,并使用 2 的幂次。变量 “n “表示子网掩码中值为零的比特数。
  • 为每个子网分配一定范围的主机 IP 地址,确保有足够的地址供设备使用。避免重叠,确保子网地址和范围正确对齐。
  •  配置网络中的路由器和交换机,允许不同子网之间的通信。同时添加路由表,以控制子网之间的通信。
  • 定期检查网络资源和子网中 IP 地址的分配情况。如有必要,可调整或扩展子网,以满足不断变化的需求。

Related Articles

Leave a Comment