Author Archives: RedNectar Chris Welsh

About RedNectar Chris Welsh

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

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 | Leave a comment

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 | Leave a comment

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 , | Leave a comment

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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Validating IP Address Entries in Excel

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

Posted in GNS3 WorkBench | Tagged , , , , | 1 Comment

Seven things to know to make Hyperflex go – Cisco HyperFlex Best Practices

Creating a Datastore in Hyperflex Connect is easy, Creating a Datastore in vCenter is messy, When creating HXDP Snapshots in vCenter you need to be careful. There are some things that you need to do differently, and some you should do differently. Here are Seven things to know to make Hyperflex go. Continue reading

Posted in Best Preactices, Cisco, Data Center, Data Centre, ESXi, Hyperflex, VMware | Tagged , , , | 2 Comments