IP Addressing Series – Part 6: Introduction to Subnetting - Basic guide for beginners
Understand the Basic Concept of Subnetting in Beginner-Friendly Way
In a large networks, hundreds and
thousands of devices are connected, such as computers, laptops, printers and
different types of servers. All the connected devices share the same network as
a result data traffic is increases and the network become difficult to manage.
Subnetting is used to solve the overload of
network.
In subnetting networks are divided
into smaller sections which are called subnets. Each subnet works as a separate
network. This reduces the overload traffic and improves network performance.
In today’s blog, we will learn the
basics of subnetting, its importance and how subnetting works. Before learning subnetting ,Understanding of IP addressing fundamentals is important.
Let’s understand what Subnetting is.
Subnetting is a process of dividing
one large network into multiple smaller networks which known as subnets. Each
subnet connects to the main network but works as an independent network.
Subnetting is used to make IP
addresses and network management easier. With the help of subnetting big
networks will organized in a better way.
Instead of assigning large block of IP addresses
to every network, it allows administrator to allocate only the number of IP
addresses that needed.
Subnetting helps to avoid the wasting
of IP addresses.
New to networking? check out our guide on Networking basics and network types to build a strong foundation.
Why Subnetting is used?
As networks increase, the number of
connected devices also increases. Managing a large number of networks becomes difficult
without subnetting. Therefore subnetting helps to solve these problems by
dividing large networks into smaller parts.
Here are some reasons why subnetting is used:
- It is used to prevent the wastage of IP addresses
- It divides the larger network into smaller subnets which makes network management easy.
- It improves security by placing different departments in a separate subnets.
- It is also used for better traffic control; it limits traffic within each subnet and reduces congestion.
- It enhances the network performance.
- Subnetting also simplifies troubleshooting.
Some Benefits of Subnetting
Subnetting provides many advantages in
networking. It is used to improve the security, efficiency and management of a
large network. By dividing larger network into smaller subnets organizations
use their network resources in more convenient way.
Some benefits of subnetting are
written below:
- It provides efficient use of IP addresses
- It Reduces network congestion
- Subnetting improves security
- Improved overall performance
Let’s understand how Subnetting works (basic idea)
Subnetting divides one large network
into smaller networks called subnets, it is used to organize and manage big
networks.
IP addresses depend on two parts:
- Network portion
- Host portion
In the process of subnetting some
bits are borrowing from the host portion of an IP address and used as a part of
network portion.
In this way, one network can create
multiple smaller networks.
As subnetting applied a larger
network split into multiple smaller networks (subnets).
Each subnet has its own network
address and range of IP addresses, which allows subnets to operate
independently.
For example:
192.168.1.2
After applying subnetting the IP
address divided into smaller subnets which look like:
- 192.168.1.2
- 192.168.1.58
- 192.168.1.127
- 192.168.1.192
Devices are organized into these
different subnets.
For example:
- The HR department uses (192.168.1.2)
- The Finance department uses (192.168.1.58)
- The IT department uses (192.168.1.127)
- The Sales department uses (192.168.1.192)
The main purpose of subnetting is to
make large network into smaller parts and make it efficient.
if you are not familiar with different IP address ranges, check out our guide on IPv4 Classes Explained in details.
Interview Questions to Remember
Define Subnetting?
Subnetting is a process of dividing one large
network into multiple smaller networks which known as subnets.
Tell some
uses of Subnetting?
Some uses of Subnetting are written
below:
- It provides efficient use of IP addresses
- It Reduces network congestion
- Subnetting improves security
- Improved overall performance
Define
subnet?
The process of dividing one large
network into multiple smaller networks known as subnets. Each subnet connects
to the main network but works as an independent network.
Explain the
core objective of Subnetting?
Subnetting is used to improve the security, efficiency and
management of a large network. By dividing larger network into smaller subnets
organizations use their network resources in more convenient way.
Tell some
benefits of Subnetting?
Here are some benefits of Subnetting:
- Prevent the wastage of IP addresses
- It divides the larger network in smaller subnets which makes network management easy.
- Improve security by placing different departments in a separate subnets.
- It is also used for better traffic control, it limits traffic within each subnet and reduces congestion.
- It enhances the network performance.
- Subnetting also simplifies troubleshooting.
How Subnetting
helps in network performance?
It divides the larger network into
smaller subnets which makes network management easy. Subnetting controls
traffic by limiting traffic within each subnet and reducing congestion.
Tell the
concept of host and network portions in Subnetting?
In process of Subnetting some bits are
borrowing from the host portion of an IP address and used as a part of network
portion.
In this way one network can create
multiple smaller networks.
Is Subnetting
also increase security?
It improve security by placing
different departments in a separate subnets.
Give some examples
of Subnetting?
After applying Subnetting the IP
address divided into smaller subnets which look like:
- 192.168.1.2
- 192.168.1.58
- 192.168.1.127
- 192.168.1.192
What is the
use of Subnetting in modern networking?
Yes, in modern networking Subnetting
is used to make IP addresses and network management easier. With the help of
Subnetting big networks will organized in a better way.
Tell some
difference between a network and a subnet?
In Subnetting, networks divided into smaller sections and these
smaller section of network are known as subnets.
How Subnetting
increase or decrease the number of hosts?
In process of Subnetting some bits
borrowing from the host portion of an IP address and using them as a part of
network portion.
In this way one network can create
multiple smaller networks.
How Subnetting
protects IP address from wasting?
Instead of assigning large block of IP
addresses to every network, it allows administrator to allocate only the number
of IP addresses that needed. Subnetting helps to avoid the wasting of IP
addresses.
Conclusion
In conclusion, Subnetting is a concept
that helps to divide a large network in a smaller and manageable way. With the
help of Subnetting organizations use IP addresses in an efficient way and it
also help to reduce unnecessary network traffic.
With smaller networks (subnets), network
administrators organize devices, simplify troubleshooting and have a better
control over networks.
Understanding the concept of Subnetting
is important for learners, as it forms foundation for designing and modern
computer networks.
we highly recommended learning Binary conversion for networking, because binary concepts are essentials for mastering subnetting.
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