Subnetting in a nutshell 🤓
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Subnetting is the process of splitting a larger IP network into subdivisions, known as subnets. Dividing networks into smaller parts can improve performance, security, and stability. Watch this video to learn how subnetting works.
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Contents:
00:00 Intro
00:15 Subnetting explained
00:30 IP address explained
00:45 Subnet mask explained
01:05 Subnet benefits
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Subnetting allows you to break networks into smaller parts, improving performance, security, and stability. But how does subnetting actually work?
It works by using subnet masks to divide up a single network into multiple smaller units. While routers connect these subnets and manage traffic between them. IP addresses and subnet masks are key components here.
An IP address or unique identifier is made of numbers and periods. The two sections in the IP number represent your device or a host. The other part is the network in which your device takes part. So, both parts are critical for information to be shared.
Now, the subnet mask helps to determine which part of an IP address represents the network and which part is the host identifier, or device, on that network. Simply put, a subnet mask is a number that defines the size of a network or subnetwork with a range of usable network IP addresses.
Subnets help to enhance speed and performance and facilitate the connection for more extensive networks or groups like WANs.
When data is sent to a specific subnet, it can avoid unnecessary routers and reach the desired destination faster and more efficiently, avoiding congestion. For example, guest Wi-Fi users in an organization are on one subnet, and employees are on another, so a surge in guest traffic will not significantly affect communication between employee devices.
As far as network security is concerned, subnets are vital. Having divided your network, you can give users access to specific subnets rather than your network, making users on other subnets safe. Moreover, if one subnet is exposed to cyber threats, the chance of it spreading to other subnets is lower.
Another critical benefit of subnets is scalability, especially when businesses grow in size. Safer communication can be implemented between departments while safeguarding vulnerable information without a major overhaul of the core network infrastructure.
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28 июн 2024
