Author Archives: RedNectar Chris Welsh

About RedNectar Chris Welsh

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

Rednectar’s Rules for writing Lab Guides

I wrote these as a guide for lab writers whose work I get to review and are in the context of writing lab guides using the frustrating wordprocessor known as Microsoft Word. It is meant to be a set of … Continue reading

Posted in Microsoft, Microsoft Word, MS Word Tips | Tagged , | Leave a comment

How to schedule Hyperflex Scheduled Snapshots

When upgrade your Hyperflex plugin, you’ll find that the Schedule Snapshots option has GONE Continue reading

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New APIC ACI 5.1 firmware – Cisco have gone colloquial

This is an absolute affirmation that Cisco only cares about North American users Continue reading

Posted in ACI, Cisco, rant | Tagged , , | 1 Comment

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 | Comments Off on Making the most of ACI when routing between tenants via a Firewall

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

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

There is no excerpt because this is a protected post.

Posted in Cisco, rant | Comments Off on Protected: You won’t beleive how secure Cisco is!

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

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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

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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
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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

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