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.

How to Copy Large Show Tech-support from Cisco Device Using Putty

How to Copy Large “Show Tech-support” from Cisco Device Using Putty ?

Afroz AhmadJan 22, 20123 min read
How to copy a large “Show Tech-support” output from a Cisco device using Putty. This is useful in case you are unable to copy the entire content of the output in one go.
Bridging LAN Over WAN

Bridging LAN Over WAN

Afroz AhmadNov 21, 20114 min read

Bridging for me is simply straightforward here in Bridging we…

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What if we dont know the AS number of the Neighbouring Router in EIGRP…

Afroz AhmadNov 3, 20113 min read

Here i have taken a simple topology R1 is connecting…

OER/Pfr ….Watching like hell……

OER/Pfr ….Watching like hell……

Afroz AhmadOct 31, 201114 min read

Today we will discuss not so explored cisco outstanding feature…

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MSDP with BGP Address-family Ipv4 Multicast

Afroz AhmadOct 29, 20116 min read

Today we will be discussing MSDP with BGP ipv4 multicast…

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Spanning-tree Guard Root

Afroz AhmadJun 18, 20113 min read
We'll discuss STP Root Guard, which prevents Layer 2 loops in network anomalies.
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3560/3550 Recovery Procedure

Afroz AhmadJun 15, 201112 min read

3560/3550 Recovery Procedure———————————— Connect a PC to the console port…

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Configure Replace

Afroz AhmadJun 14, 20113 min read

Configure Replace ————————– If you want to replace your running…

eBGP Peering

eBGP Peering

Afroz AhmadJun 13, 20113 min read

eBGP Peering ——————- We are able to peer with a…

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Dot1x Authentication

Afroz AhmadJun 12, 20113 min read

Dot1x Authentication ————————– Recently i have configured the Dot1x authentication…

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QinQ Tunneling

Afroz AhmadJun 11, 20116 min read

QinQ Tunneling ———————— This is the method basically used by…

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MPLS Terminologies

Afroz AhmadJun 10, 20113 min read

MPLS Terminologies ————————– >MPLS:-The evolution of MPLS was Cisco’s TAG…

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MPLS VPN Scenario

Afroz AhmadJun 9, 20114 min read

OSPF /32 issue in MPLS VPN Scenario =========================== Yesterday i…

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OSPF Cost Manipulation

Afroz AhmadJun 8, 20112 min read

OSPF Cost Manipulation ====================== The equation used for cost manipulation…

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Switchport Mode Private-Vlan

Afroz AhmadJun 5, 20113 min read

Hi guys i am back was stuck in some office…

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BGP Reachability

Afroz AhmadJun 3, 20112 min read

BGP Reachability ================= R1 | |      |       R2—FR CLOUD—R6…

BGP Filtering Best Practices

BGP Filtering Best Practices: Techniques and Guidelines for Using AS-Path Filters, Distribute-Lists, Prefix-Filters, and More.

Afroz AhmadJun 3, 201113 min read
BGP Filtering Best Practices: Techniques and Guidelines for Using AS-Path Filters, Distribute-Lists, Prefix-Filters, and More.
BGP Default Routing

BGP Default Routing

Afroz AhmadJun 2, 20112 min read

BGP Default Route Origination ============================= We can originate default route…

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Eigrp Unequal Cost Load balancing

Afroz AhmadJun 2, 20113 min read

Today while i was doing lab i was stuck in…