Example — Dynamically Creating and Destroying a Virtual Switch

To create and then explicitly destroy a port based virtual switch, do the following. Note: This example was done from the LINUX1 userid with Class B privilege.

Define a port based virtual switch named PORTVSW.
```
DEFINE VSWITCH PORTVSW PORTBASED
```
Define a port for LINUX1 userid. (Authorizes LINUX1 to connect to port 10).
```
SET VSWITCH PORTVSW PORTNUMBER 10 USERID LINUX1
```
Define a simulated NIC of type QDIO. The virtual device number is 0800.
```
DEFINE NIC 0800 QDIO
```
Couple the simulated NIC to the virtual switch on the defined port.
```
COUPLE 0800 TO SYSTEM PORTVSW PORTNUMBER 10 
```
Explicitly destroy the virtual switch.
```
DETACH VSWITCH PORTVSW
```

At the end of this process, the simulated NIC at devices 0800-0802 still exists, and can be coupled to another virtual switch. The command DETACH NIC is used to destroy the simulated NIC. To do this, enter:

DETACH NIC 0800

The command DETACH 0800 cannot be used to detach a simulated NIC. You must issue DETACH NIC when you want to remove a simulated NIC.