Sunday, 17 August 2025

vPC EPG Deployment Rule

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 When deploying an EPG on a vPC, both leaf switch ports (on each leg of the vPC) must be associated with the  same domain  and use the  same...

Can VLAN numbers previously used for EPGs be reused on the same leaf switch?

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Yes, VLAN numbers can be reused for different EPGs on different ports of the same leaf switch, provided the configuration is done carefully ...

Recovering and Reinitializing a Standby APIC to active APIC in Cisco ACI

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  Recovering and Reinitializing a Standby APIC in Cisco ACI If you're working with a  standby APIC  and need to verify access or promo...

Configuring Port Profiles in Cisco ACI (NX-OS Style CLI) - Uplink to Downlink port

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  Up until Cisco ACI 3.1, fabric ports on leaf switches were hard-coded as fabric (iVXLAN) ports and could connect only to spine switches. S...
Saturday, 16 August 2025

Cisco ACI - Node states - Unknown vs discovering vs undiscovered vs Unsupported vs decommissioned vs inactive Vs active

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 In Cisco ACI,  node states  describe the status of a fabric node (like a leaf or spine switch) in relation to the APIC controller and the o...

JSON Demystified: {} vs [] — What’s the Real Difference?

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  JSON is a data exchange format and open standard. It  is based on a subset of JavaScript and is a text format that is completely language-...
Saturday, 9 August 2025

L3Out Subnet Scope Options in Cisco ACI

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  L3Out Subnet Scope Options in Cisco ACI Scope Option Purpose Export Route Control Subnet ...