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.

📌 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

✅ Best Practices

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