Zero Touch Fabric Configuration automatically configures the Shortest Path Bridging (SPB) and Intermediate System-to-Intermediate System (IS-IS) infrastructure to enable Fabric architecture on a switch. The system initializes the following items after you start the switch in Zero Touch Fabric Configuration mode:
Enables Shortest Path Bridging MAC (SPBM).
Creates a private VLAN 4048.
Creates the Auto-sense onboarding I-SID 15999999.
Assigns the Auto-sense onboarding I-SID 15999999 to private VLAN 4048 and also includes the management VLAN.

Note
As a best practice, use the onboarding I-SID for onboarding purposes and, whenever possible, configure a management VLAN or management CLIP on a different I-SID after the onboarding procedures have been successfully completed.
Enables Auto-sense on all ports.
Configures Auto-sense access ports and layer 2 trusted Auto-sense ports.
Creates an SPBM instance.
Enables IS-IS globally.
| Parameter | Default value | 
|---|---|
| SPBM instance | 1 | 
| Primary B-VLAN | 4051 | 
| Secondary B-VLAN | 4052 | 
| Manual area | Initialize to 00.1515.fee1.900d.1515.fee1.900d Note: 
                 You can change the manual area dynamically, without disabling IS-IS, only when the area is the Zero Touch Fabric Configuration area. When IS-IS is enabled, you cannot delete the last manual area. | 
| Auto-sense onboarding I-SID | 15999999 |