Author Archives: RedNectar Chris Welsh

About RedNectar Chris Welsh

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

Do you put version numbers in MS Word Documents? You should. And here’s how to do it properly

“Do you have the latest version?” “Well, mine’s version 2.0. What’s yours?” “Mine’s version 2.0 too” “Well, why are they different?” We’ve all had that conversation or similar right? So why not implement a way of improving version numbering in … Continue reading

Posted in Microsoft, Microsoft Word, tutorial | Tagged , , | Leave a comment

Foolproof Validation of the ACI Access Policy Chain

Have you ever come across an invalid-vlan or invalid-path error in an ACI Endpoint Group, L3Out or Tenant? The chances are, there is a problem in your Access Policy Chain – i.e. the collection of Access Policies that you created before … Continue reading

Posted in Access Policies, Access Policy Chain, ACI, ACI Tutorial, Cisco | Tagged , | Leave a comment

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

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

Posted in GNS3 WorkBench | Leave a comment

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

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

Posted in GNS3 WorkBench | Leave a comment

HyperFlex’s new snapshot mechanism matters. Here’s why, and what Cisco forgot.

Losing the Hyperflex SENTINEL snapshot is great, but Cisco dropped the ball when it came to management options in the HyperFlex Connect management app, I hope they fix this soon. In the meantime, I’ve created a bunch of PowerCLI scripts you can use. Continue reading

Posted in Cisco, Hyperflex | Tagged , | Comments Off on HyperFlex’s new snapshot mechanism matters. Here’s why, and what Cisco forgot.

Finding text within a paragraph or word in MS Word

When using wildcards to search for text between two specific markers, MS Word will find those markers and that text no matter how far apart they are. If you want to restrict the search to finding that text/markers within a … Continue reading

Posted in Microsoft, Microsoft Word, MS Word Tips | Tagged , , , | Comments Off on Finding text within a paragraph or word in MS Word

Are Interface Descriptions in ACI using magic?

If there are TWO ways of getting a description into the Physical Interface Description, which one wins? Let’s have a duel. Continue reading

Posted in Access Policies, ACI, ACI API, Cisco | Tagged | Comments Off on Are Interface Descriptions in ACI using magic?

Hyperflex Post Install script fixer

The hx_post_install script that is used during the Cisco HyperFlex install process does NOT work the way it should. The fix is as easy as cut-and-paste the following into your ssh session. Continue reading

Posted in Cisco, Hyperflex | Tagged | Comments Off on Hyperflex Post Install script fixer

Webex multi-screen support – where is it Cisco?

I’d like Cisco to move to a default two window model when screen sharing is active Continue reading

Posted in Cisco, Webex | Tagged , , | Comments Off on Webex multi-screen support – where is it Cisco?

Cisco has re-vamped their ACI Docs pages. Here’s what I think.

What Cisco has done is given us not just a prettier version, but in many cases more useable too Continue reading

Posted in ACI | Comments Off on Cisco has re-vamped their ACI Docs pages. Here’s what I think.