> # Specifying Static or Preferred Domain IDs

> ## Restrictions

> - Within a VSAN all switches should have the same domain ID type (either static or preferred). If a configuration is mixed (some switches with static domain types and others with preferred), then you may experience link isolation.

> ## Detailed Steps

> To specify a static or preferred domain ID, follow these steps:

> 1. Expand Fabric > All VSANs and then select Domain Manager in the Logical Domains pane for the fabric and VSAN that you want to configure the domain ID for.

> You see the running configuration of the domain in the Information pane.

> 2. Enter a value for the Config DomainID and click static or preferred from the Config Type drop-down menu to set the domain ID for switches in the fabric.
> 3. Click the Apply Changes icon to save these changes.

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