Static Binding Deployment Options in ACI - Immediate Vs On demand

 🔧 Static Binding Deployment Options in ACI

When you statically bind an EPG to a port (interface), you’ll see a Deployment Immediacy setting. This determines when the configuration is pushed to the fabric.

1. Immediate

• Definition: The configuration is deployed to the switch as soon as you save it.
• Use Case: Use this when the endpoint is already connected or expected to connect soon.
• Behavior: The policy is applied to the interface regardless of whether an endpoint is present.

2. On-Demand

• Definition: The configuration is deployed only when an endpoint is detected on the interface.
• Use Case: Useful for reducing unnecessary configuration on interfaces until needed.
• Behavior: The policy is not pushed until the APIC sees a MAC address or IP on that port.

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📌 Where You Set This

When creating a static binding in the APIC GUI:

• Navigate to the EPG → Static Ports
• Add a static port binding
• Choose the Deployment Immediacy: Immediate or On-Demand

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✅ Best Practices

• Use Immediate for known, always-on devices (like servers).
• Use On-Demand for dynamic environments (like user laptops or VMs that move).