Author Archives: RedNectar Chris Welsh

About RedNectar Chris Welsh

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

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 | Leave a comment

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 | Leave a comment

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

Configuring Link Speed on UCS 6545 10/25G ports

The secret is to double-click on the port to bring up the Properties window. From here you find the Show Interface option. Continue reading

Posted in Cisco, Data Center, Data Centre, Hyperflex, UCS | Tagged ,

ACI Inband Mangagment Route Leaking Kludge

When I was challenged with this: Hi @RedNectar , Right now I have a simple contract that allows SSH only: Scope set to global. TCP dst 22. “Both directions” and “reverse port filters” enabled. This contract is provided by the inband EPG … Continue reading

Posted in ACI, aci inband management, ACI inband management tutorials, ACI Tutorial, Cisco | Tagged , , , | 2 Comments

Understanding Scope Of Prefixes in L3 Out External EPG in ACI —

Excellent post on unofficialaciguide – hightly recommended. In ACI the external Routing Peer to the router is done through border leaves with a object called L3Out. L3Out has an object in it called the L3Out InstP also known as the … Continue reading

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