Monthly Archives: September 2020

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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