Internet Services, Modems & Routers, Tech Reviews, Computer Networking, Security, and more!

Afroz Ahmad – Main Author of AfrozAhmad.com

Welcome to Afroz Ahmad – I’ve been writing about computer network technologies on my blog since 2012. My name is Afroz Ahmad, and I am a seasoned Network Engineer and author of AfrozAhmad.com.

I’m a CCIE with more than 17 years of experience in Computer Networking, Data Centers, Telecom, Internet Services, and ISPs. Currently, I work as a Network Designer for a leading ISP equipment vendor. I share my expertise through my blog and courses, aiming to help people solve everyday internet issues, select the appropriate equipment for their tech needs, and simplify complex networking concepts for both beginners and experienced professionals.

Read more about me >>

Reach out to me with any questions you have on Computer Networking, Modems, Routers, Internet services, etc.

BGP Regular Expression Cheat Sheet

What is BGP Regular Expression, and How to Use it Effectively?

Afroz Ahmad Mar 1, 2023 9 min read
In this comprehensive guide, we will cover everything you need to know about BGP regular expressions, or “regex,” and how to use them effectively in your network.
How to be Successful in IT Industry: Essential Tips and Strategies

How to be Successful in IT Industry: Essential Tips and Strategies

Afroz Ahmad Feb 8, 2023 8 min read
Unlock your tech success as an IT professional with our essential tips and strategies on how to be successful in IT industry. Learn to navigate the field, find resources, and gain knowledge in a fun and manageable way.
eBGP vs iBGP Comparison Chart

eBGP vs iBGP: The Dynamic Duo of Routing Protocols

Afroz Ahmad Jan 23, 2023 8 min read
EBGP and IBGP are like your two best friends — one gets you out of the house and lets you explore the world (eBGP), while the other helps keep things running smoothly inside (iBGP). Today, we’ll dive into the exciting topic of eBGP vs iBGP.
Navigating the World of Network Engineering_ Fundamentals, Trends, and Solutions

How to Navigate the World of Network Engineering in 2024: Fundamentals, Trends, and Solutions

Afroz Ahmad Jan 17, 2023 15 min read
Real-world insights on Fundamentals, Trends, and Solutions for a successful career in network engineering.
How to advertise routes in BGP - 5 ways

How to advertise routes in BGP – 5 Simple Techniques

Afroz Ahmad Jan 13, 2023 11 min read
Master the art of BGP route advertisements and control your network like a pro. Learn how to advertise routes in BGP with our practical guide.
BGP Best Path Selection Algorithm Cheat Sheet

List of BGP Attributes and the BGP Best Path Selection Algorithm

Afroz Ahmad Jan 4, 2023 10 min read
In this article, we’ll take an in-depth look at BGP path attributes, the best path selection process, and its cheat sheet.
BGP Message Types

BGP Message Types

Afroz Ahmad Dec 29, 2022 3 min read
In this blog post, we’ll take a detailed look at the different types of BGP messages (Open, Keepalive, Update, and Notification) and how they are used.
BGP Neighborship Establishment and Maintenance Process

BGP Neighbor Establishment Process Explained

Afroz Ahmad Dec 29, 2022 6 min read
This article will explain the process of establishing and maintaining a BGP neighbor relationship, including the steps and configuration involved and the messages exchanged.
BGP Finite State Machine - BGP States Explained

BGP States Explained

Afroz Ahmad Dec 21, 2022 7 min read
The goal of this article is to give you a full understanding of the six BGP states of a BGP session, which are idle, connect, active, OpenSent, OpenConfirm, and established, as well as how BGP moves between them.
What is BGP in Networking and how it works

What is BGP in Networking and How it Works?

Afroz Ahmad Dec 7, 2022 18 min read
In this guide, you’ll learn what is BGP in Networking, how it works, and some of its key features, benefits, challenges, and ways to learn BGP concepts faster.
OSPF Authentication

OSPF Authentication: What, Why, and How to Configure?

Afroz Ahmad Nov 17, 2022 7 min read
This article covers OSPF authentication, including its definition, benefits, and instructions for configuration and troubleshooting.
OSPF Troubleshooting Commands Cheat Sheet

OSPF Troubleshooting Commands Cheat Sheet

Afroz Ahmad Nov 8, 2022 8 min read
In this blog post, you will find a comprehensive list of OSPF troubleshooting commands network engineers can utilize in real-world scenarios.
how to choose your vps hosting provider for Web Hosting

4 Simple Tips on how to choose your VPS hosting provider for Web Hosting

Afroz Ahmad Oct 25, 2022 10 min read
Choosing the right virtual private server for web hosting can be a daunting task. Luckily, this guide has you covered with 4 simple tips on how to choose your VPS hosting provider.
OSPF Path Selection Process Explained

OSPF Path Selection Process Explained

Afroz Ahmad Oct 21, 2022 6 min read
In this article, we will discuss the steps that OSPF takes to determine the optimal path to each destination network and how you can manipulate some of the OSPF parameters to affect the overall behavior of the OSPF path selection process.
What Does VPS Stand For

What Does VPS Stand For?

Afroz Ahmad Oct 4, 2022 11 min read
What does VPS stand for? A VPS is an acronym for Virtual Private Server. It is a remote server hosted in the cloud, where you can host almost anything you can host locally on your computer or a server.
OSPF Virtual Link Explained

OSPF Virtual Link Explained in Detail

Afroz Ahmad Sep 26, 2022 4 min read
In this article, we will discuss OSPF virtual link, when you should use it, requirements, key points, and how to configure it. As a bonus, we will also discuss an alternative option for the OSPF virtual link.
OSPF Network Types Explained

OSPF Network Types Explained

Afroz Ahmad Sep 15, 2022 11 min read
There are three OSPF network types: broadcast, point-to-point, and non-broadcast. There are also two Cisco-proprietary types: point-to-multipoint and point-to-multipoint non-broadcast. Let’s explore all five OSPF network types.
OSPF Area Border Routers ABR

What are the Types of OSPF Routers, Area Border Routers, or ABRs?

Afroz Ahmad Aug 18, 2022 8 min read
This article will discuss the types of OSPF routers, the Area Border Routers (ABR) in OSPF, why we need them, and how to configure them to optimize overall OSPF and network performance.
OSPF Area Types - Standard and Backbone Area

OSPF Area Types – [Infographics]

Afroz Ahmad Aug 11, 2022 10 min read
This blog post will explain what OSPF area types are, why we need them, their benefits, how they work, and how to configure them in your network.
OSPF LSA Types Explained with Infographic Cheat Sheet

OSPF LSA Types Explained – [Infographic Cheat Sheet]

Afroz Ahmad Aug 4, 2022 10 min read
Do you know that OSPF uses only six common OSPF LSA types out of a total of eleven types of LSA? In this blog post, I will dig deep into all the LSAs, explaining what they do and how to use commands to check them.