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.
Reach out to me with any questions you have on Computer Networking, Modems, Routers, Internet services, etc.
eBGP Peering: Intent-Based Path Selection
The backbone of inter-Autonomous System (AS) communication on the internet…
Cisco IOS Dot1x Authentication Configuration
Ah, 802.1X authentication – a true veteran in network security,…
QinQ Tunneling: Modern Deployments and Automation Practices
When I first wrote about QinQ tunneling (or IEEE 802.1ad,…
Foundational MPLS Terminologies
As a senior network engineer, I’ve witnessed firsthand the dramatic…
MPLS VPN Scenario: OSPF Loopback /32 Routes
OSPF /32 Issue in MPLS VPN Scenario: A Modern Troubleshooting…
OSPF Cost Manipulation: Modern Best Practices and Automation
As a network engineer, I often find myself fine-tuning routing…
BGP Reachability Best Practices
The landscape of Border Gateway Protocol (BGP) reachability and robust…
BGP Filtering Best Practices: Techniques and Guidelines for Using AS-Path Filters, Distribute-Lists, Prefix-Filters, and More.
BGP Default Routing
Originally published back in 2011, this post introduced the essential…
Eigrp Unequal Cost Load balancing
Today, revisiting a topic from my earlier lab days back…




