Networking Intermediate

What is Subnet?

A logical division of an IP network into smaller segments to improve performance, security, and management.

Subnetting divides a large network into smaller, more manageable sub-networks. A subnet mask (e.g., 255.255.255.0 or /24) defines the network and host portions of an IP address.

Benefits include reduced broadcast traffic, improved security through isolation, and efficient IP address allocation. CIDR notation (/24, /16, etc.) specifies subnet sizes concisely.

Related Terms

ARP (Address Resolution Protocol)

A protocol that maps IP addresses to physical MAC addresses on a local network segment.

HTTP Keep-Alive

An HTTP mechanism that reuses a single TCP connection for multiple requests, reducing the overhead of establishing new connections.

MTU (Maximum Transmission Unit)

The maximum size of a data packet that can be transmitted over a network without fragmentation.

QoS (Quality of Service)

A set of techniques for managing network traffic to prioritize certain types of data and ensure performance for critical applications.

The fundamental communication protocol suite of the internet that defines how data is packaged, addressed, transmitted, and received.

The latest version of the Internet Protocol with 128-bit addresses, designed to replace IPv4 and solve address exhaustion.

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