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This article will explain in detail the role of subnetting in computer networks. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The function of subnetting: 1, dividing the three types of ABC addresses into smaller network segments by using the mask, which can save IP addresses as much as possible and avoid waste; 2, improve network performance; 3, can ensure the security of the network; 4, it is easy to expand the geographical scope, which is helpful to cover large geographical areas.

Subnetting definition:

The Internet organization defines five types of IP addresses, including A, B, and C. There are 126 Class A networks, and each Class A network may have 16777214 hosts that are in the same broadcast domain. However, it is impossible to have so many nodes in the same broadcast domain, and the network will be saturated because of broadcast traffic, resulting in most of the 16777214 addresses not allocated.

The IP network based on each type can be further divided into smaller networks, and each subnet is defined by the router and assigned a new subnet network address, which is created by borrowing the host part based on the network address of each type. After subnetting, the subnet is hidden by using a mask so that there is no change in the network from the outside, which is the subnet mask.

By subnetting, we can divide the network into small networks according to our needs. This also helps reduce traffic and hide the complexity of the network.

The role of subnetting

1. It can save IP address and avoid waste

The address range of categories A, B and C is relatively large, resulting in a serious waste of IP addresses. In order to improve the utilization of IP addresses, the three categories of ABC addresses are divided into smaller network segments using masks to save the waste of IP addresses as much as possible!

2. Improve network performance

3. It can ensure the security of the network.

4. It is easy to expand the geographical scope and help to cover large geographical areas.

This is the end of the article on "what is the role of subnetting in computer networks". I hope the above content can be of some help to you, so that you can learn more knowledge. If you think the article is good, please share it for more people to see.

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