What Is Subnetting and Why Should We Care?
Cisco subnetting refers to the process of dividing an IP address space in a network into smaller, non-contiguous sections called subnets in order to create more manageable networks. This process is also called classless interdomain routing (CIDR).
Subnetting is used in practice in both large and small organizations. It can be used to break up broadcast domains or separate departments for security reasons or other reasons.
It is a process of dividing a network into smaller networks in order to enable it to be accessed by different users or devices.
A network can be described as a group of computers and other hardware that communicates with each other via wires or wireless. A router is a device on a network that manages traffic between networks. Networking has become so integral to the social, business, and educational lives of people that the need for network administrators has grown exponentially over time. For this reason, more and more people are entering into career fields such as information technology or computer engineering to fill the ever-growing need for qualified workers.
A network can be split up into smaller, more manageable parts called subnets. A subnet is a group of computers, servers, or other network devices that use the same connection to send and receive data packets. Subnets are typically created for reasons such as ease of management and to increase security. The number of subnets required for a network depends on the size and the type of the network and there is no set rule for what is considered an appropriate number.
As a network administrator, one of your tasks is to plan for company's network that will accommodate the growth of the company. To do this, you will need to calculate the number of subnets required. The first step in this process is determining the number of available IP addresses given the size of your network. Once you know this, you can determine how many IP addresses are required per subnet and how many IP addresses are left over for other purposes.
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