Category Archives: Cisco

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

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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

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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!

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Posted in Cisco, rant

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

Posted in Cisco, rant

moquery – Cisco’s Mysterious Obscure ACI query utility

Take some of the mystery and obscurity out of Cisco’s Managed Object query. The final outcome will be that you will be equiped with the knowledge to write a script and adapt to suit your needs. Continue reading

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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

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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

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

RedNectar’s Hyperflex Pre-Install Checklist (Updated)

Completing Cisco’s Pre-installation Checklist for Cisco HX Data Platform will capture all the information you need, but not necessarily in the order you need it, and for a single site only. So, I decided to write a version that gets … Continue reading

Posted in Cisco, Hyperflex, UCS, VLANs | Tagged | 1 Comment