What is a subnet

Subnet is a mechanism that divides the network into smaller logical groupings. It is implemented through subnet masks. It divides IP addresses into network addresses and host addresses. The advantages of subnets include improving network efficiency, enhancing Security, simplified management, and expanded network capacity.

What is a subnet?

A subnet is a network that divides a large network into smaller and more manageable logical groupings. It allows a large network to be divided into smaller subnetworks, each with its own address range and broadcast domain.

How do subnets work?

Subnets are created using subnet masks. A subnet mask is a 32-bit binary number that indicates which bits in an IP address are used for the network address and which bits are used for the host address. A subnet mask divides an IP address into two parts:

• Network address: is represented by 1 bit in the subnet mask and identifies devices that belong to that subnet.
• Host Address: Represented by the 0 bits in the subnet mask, it identifies the unique address of a specific device within the subnet.

By using subnet masks, a network can be divided into multiple subnets, each with its own network address and host address range.

Advantages of the subnet

The subnet has the following advantages:

• Improving network efficiency:By connecting the network Splitting into smaller subnetworks reduces broadcast traffic, thereby improving overall network efficiency.
• Enhanced Security: Subnets prevent unauthorized devices from accessing the entire network because they only belong to a specific subnet.
• Simplified Management: Subnets make it easier for network administrators to manage and troubleshoot network issues because each subnet can be configured and maintained independently.
• Expand network capacity: By creating subnets, you can increase the device capacity of the network without adding a new physical network.

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