Tag Archives: networking

Cloudflare CDN Walkthrough – Benefits, Configuration, Traffic Flow, and Performance

Checkout my latest video on Cloudflare CDN embedded below or directly on the Cloudflare YouTube channel here. The Cloudflare CDN is SaaS that helps address the challenges customers face around latency, performance, availability, redundancy, security, and costs. In this video … Continue reading

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VMworld 2019 Sessions – VMware Cloud on AWS Networking and Security

VMworld 2019 was my fifth year presenting at both the US and Europe VMworlds. Presenting at VMworld has always been something I look forward to every year, and this year was no exception. Like usual, this year, my calendar for … Continue reading

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Second VMware Press Book Published – My Thoughts and Tips

Yes, above is the very first official print I received for approval. This is my second VMware Press book, this time co-authored with Gilles Chekroun and Nico Vibert. Caught a few slight print errors last minute and sending back to … Continue reading

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VMware Cloud on AWS: NSX Networking and Security eBook

Check out my latest book co-authored with my colleagues Gilles Chekroun and Nico Vibert on VMware NSX networking and security in VMware Cloud on AWS. Thank you Tom Gillis, Senior Vice President/General Manager, Networking and Security Business Unit for writing … Continue reading

Posted in AWS, AWS, Business, Network Architecture, Network Security, Networking, Security, Tech Events, Technology, Technology, VMware, VMware, VMworld 2019 | Tagged , , , , , , , , , , , , , , , , , , , , , | 1 Comment

HumairAhmed.com – Weekly Blogs on Networking, Technology, and Silicon Valley

I started blogging about everything Tech related back in 2008 when I moved to the Silicon Valley area (an interesting story I will write about later), because I loved technology and wanted to share my knowledge and experiences with others … Continue reading

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XenServer, Hyper-V, and ESXi – Architecture, API, and Coding

Below is a link to the slide deck for a presentation I gave to some friends/colleagues for a Berkeley Virtualization and Cloud Computing certification course I took in early 2012. For my final project I did a XenServer, Hyper-V, and … Continue reading

Posted in Citrix, Java, Microsoft, Networking, Personal Presentations, PowerShell, Programming Languages, Python, Tech Events, Technology, Virtualization and Cloud Computing, VMware | Tagged , , , , , , , , , , , , , , | Leave a comment

Multi-Area OSPF – Redundancy, Route Summarization, and LSA Filtering

In this lab, all routers except for R4 and R5 are Cisco 3725 routers [IOS 12.4(15)T10]. Routers R4 and R5 are Cisco 7200 routers [IOS 12.4(24)T]. Below is the network diagram for this lab.

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Important IPv6 Addresses

For easy reference, I’ve listed some important IPv6 address ranges below.

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Possible Reasons for LAN Traffic Congestion

If you are experiencing slowness on your LAN here are some possible reasons that you can investigate:

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Functionality of Layer 2 Switches/Bridges

Layer 2 switches and bridges switch frames on a network while layer 3 routers route packets between networks. I once heard a network engineer being asked if a network can be made faster if the network is optimized to use … Continue reading

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