Category Archives: GNS3 WorkBench

M6 HyperFlex host with no connectivity to Nexus 9K; Tip for installers

Posted on 2022/08/11 by RedNectar Chris Welsh

A real show stopper when doing a HyperFlex Edge/No-FI install is the 25G connection between the UCS HyperFlex hosts and the upstream switch, like a Nexus 9K. Here’s how to make it go smoothly. When connecting Cisco UCS HyperFlex servers … Continue reading →

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Change from US to UK date format in the vSphere Client — Define The Data Centre

Posted on 2022/07/26 by RedNectar Chris Welsh

This is sooooo frustrating. So thanks to Liam for this great tip (he has lots of other great content oo) Continue reading →

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ACI and the HyperFlex Hiccup

Posted on 2021/04/27 by RedNectar Chris Welsh

the problem relates to how Cisco HyperFlex uses a floating IP address across multiple Storage Controller VM MAC addresses, and how ACI maintains the IP to MAC address table Continue reading →

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How to schedule Hyperflex Scheduled Snapshots

Posted on 2020/12/11 by RedNectar Chris Welsh

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

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CPOC Series: Exploring ACI —

Posted on 2020/08/02 by RedNectar Chris Welsh

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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Preparation List for using WebEx Training

Posted on 2020/05/25 by RedNectar Chris Welsh

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

Posted on 2019/11/09 by RedNectar Chris Welsh

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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Validating IP Address Entries in Excel

Posted on 2019/07/15 by RedNectar Chris Welsh

You will learn how IP addresses and subnet mask validation is done, plus a few other IP address maniplating tricks in Excel. Continue reading →

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An Epyc new addition to the UCS Family!

Posted on 2018/06/01 by RedNectar Chris Welsh

Originally posted on UCSguru.com:
? Back in February of this year, when I read an article in The Register, announcing that Raghu Nambiar, the then chief technology officer for UCS servers had joined AMD. I didn’t think too much of…

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Backup Plan

Posted on 2018/05/30 by RedNectar Chris Welsh

Found this in a hotel tonight. Always good to have a backup plan

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