Author Archives: RedNectar Chris Welsh

About RedNectar Chris Welsh

Professional IT Instructor. All things TCP/IP, Cisco or Data Centre

Making the most of ACI when routing between tenants via a Firewall

I’ll show you how you can enhance your ACI migration by using some ACI features that are practically impossible to implement on L3 Firewalls Continue reading

Posted in ACI, ACI Tutorial, Cisco, configuration tutorial, Data Center, Data Centre | Leave a comment

ACI Version mismatch Alert. Don’t use v5 on APIC and v14 on Leaves

If you are stuck with some first-generation switches in your ACI fabric, you might be tempted to upgrade your APIC to version 5.x – maybe even attempt to upgrade your leaf switches to the companion v15.x. Let me tell you why you don’t want to do that. Continue reading

Posted in ACI, Cisco, Data Center, Data Centre | Leave a comment

Protected: You won’t beleive how secure Cisco is!

There is no excerpt because this is a protected post.

Posted in Cisco, rant

RedNectar’s Guide for writing Exam Questions

I feel your pain. You are sitting another [insert name of favourite vendor here] exam, and you come across a question that is just not written clearly, where the examiner has not made the question clear. And so, you begin … Continue reading

Posted in Cisco, rant | Leave a comment

CPOC Series: Exploring ACI —

Recently I had the pleasure to work with the fine folks at the Cisco Proof of Concept labs in Research Triangle Park, NC. Because of the unique times we live in, this normally onsite event was constrained to a virtual … Continue reading

Posted in GNS3 WorkBench | Leave a comment

Zoom Support Warning

This is a courtesy announcement for any followers or vistors about Zoom Support.

Zoom Support is, from the evidence so far, non-existent
Continue reading

Posted in opinion, rant

Preparation List for using WebEx Training

The Covid #WorkingFromHome phenomenon has forced me to become re-aquainted with the Cisco Webex Training application.  To get the best performance from WebEx Training, I’ve made a list of the shortcomings of the application that I must remember to overcome … Continue reading

Posted in GNS3 WorkBench | Tagged

moquery – Cisco’s Mysterious Obscure ACI query utility

Take some of the mystery and obscurity out of Cisco’s Managed Object query. The final outcome will be that you will be equiped with the knowledge to write a script and adapt to suit your needs. Continue reading

Posted in ACI, ACI Tutorial, Cisco, Master Class | Tagged , , , , | 1 Comment

How to find powerpoint slides that don’t fit the template

any slides that have been altered cause a new slide layout to be added to your template with same name as the original with the characters 1_ prefixed. Continue reading

Posted in Microsoft, PowerPoint, tutorial

USB-A for Apple Magic Mouse – Apple, you’ve GOT to be joking!

I have just bought a Magic Mouse 2. I bought my Mac Book Pro in 2016. The instructions in th MM2 say “To Pair you mouse with your Mac, use the Lightning to USB cable that came with your Mouse”. … Continue reading

Posted in Apple, rant