The Network DNA: Networking, Cloud, and Security Technology Blog: Basics

Three-Tier Network Architecture Lab: Building Enterprise-Grade Networks with Core, Distribution & Access Layers

Route XP April 07, 2026

Networking Labs · Cisco Hierarchical Design A hands-on guide to designing, cabling, and configuring a hierarchical three-tier networ...Read More

Basics networking optics OSFP QSFP+

QSFP+ vs. OSFP: A Comprehensive Comparison of Optical Transceivers

Route XP February 17, 2026

QSFP+ vs. OSFP: A Comprehensive Comparison of Optical Transceivers In the rapidly evolving landscape of data center and networking infrastru...Read More

Basics networking optics QSFP-DD QSFP112

QSFP-DD vs QSFP112: What’s the Difference?

Route XP February 13, 2026

QSFP-DD vs QSFP112: What’s the Difference? The rapid evolution of data center networks has pushed optical transceiver technology to new heig...Read More

Basics DNS networking Networks

How DNS Works (Domain Name System)?

The Network DNA October 03, 2025

How DNS Works (Domain Name System)? The Domain Name System (DNS) translates human-readable domain names (like example.com) into IP addresse...Read More

Basics ccna CCNP Cisco networking subnetmask wildcardmask

Subnet Mask vs Wild Card Mask

The Network DNA September 17, 2025

Subnet Mask vs Wild Card Mask 1. Subnet Mask A subnet mask is a key element in IP networking used to determine which part of an IP addres...Read More

Basics bits ccna Cisco ip ipv4 networking Networks

Network Basics : Understanding IPv4 Bits

The Network DNA September 17, 2025

Network Basics : Understanding IPv4 Bits IPv4 (Internet Protocol version 4) addresses are composed of 32 bits . These bits are grouped into ...Read More

Basics Cisco network networking OSPF

What is OSPF Router-ID ?

The Network DNA September 16, 2025

What is OSPF Router-ID ? In OSPF , the Router ID (RID) is a unique 32-bit identifier, presented in IPv4 format , that serves as a unique na...Read More

Basics Firewall networking Networks NGFW UTM

Network Security Fundamentals: Basics

The Network DNA September 12, 2025

Network Security Fundamentals: Basics In today’s interconnected digital world, the threat landscape for businesses, organizations, and indi...Read More

Three-Tier Network Architecture Lab: Building Enterprise-Grade Networks with Core, Distribution & Access Layers

QSFP+ vs. OSFP: A Comprehensive Comparison of Optical Transceivers

QSFP-DD vs QSFP112: What’s the Difference?

How DNS Works (Domain Name System)?

Subnet Mask vs Wild Card Mask

Network Basics : Understanding IPv4 Bits

What is OSPF Router-ID ?

Network Security Fundamentals: Basics

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