Category Archives: GNS3 WorkBench

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 →

Posted in ACI, Best Preactices, Cisco, GNS3 WorkBench, Hyperflex | Tagged , , | 3 Comments

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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Guest Post! WTF Are all those Checkboxes? (ACI L3 Outs) – Part 2 of ???

Posted on 2017/07/22 by RedNectar Chris Welsh

Originally posted on Come Route With Me!:
My friend and colleague Mr. Jason Banker recently ran into some good times with the mysteries of the ACI L3 Out Checkbox Madness! He Slack’d me and told me he’d found some clowns…

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Introducing Cisco UCS S-Series

Posted on 2016/11/02 by RedNectar Chris Welsh

Originally posted on UCSguru.com:
Today Cisco announced the Cisco UCS S Series line of storage servers. Now the more eagle eyed among you may think that the new Cisco UCS S3260 Storage Server looks very much like the Cisco…

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