Show Vlan Internal Usage - Cisco Small Business 300 1.1 Series Administration Manual

Virtual Local Area Network (VLAN) Commands
78-20269-01 Command Line Interface Reference Guide
Default Configuration
No VLAN is reserved as an internal usage VLAN by default (using this command).
Command Mode
Interface Configuration (Ethernet, Port-channel) mode. It cannot be configured for
a range of interfaces (range context).
User Guidelines
An internal usage VLAN is assigned by the system when an IP interface is defined
on an Ethernet port or port-channel.
If an internal usage VLAN is not defined for a port, the software selects one of the
unused VLANs.
If a VLAN was chosen by the software for internal usage, but you want to use that
VLAN for a static or dynamic VLAN, do one of the following:
•
Remove the IP address from the interface (this releases the internal usage
VLAN).
•
Recreate the VLAN on the required interface (now it will be assigned to the
interface and not be used as an internal usage VLAN)
•
Recreate the IP interface (another internal usage VLAN is assigned to this IP
interface) or use this command to explicitly define the internal usage VLAN.
Example
The following example reserves unused VLAN 200 as the internal usage VLAN of
gi3.
Console(config)#
interface gi3
Console(config-if)#

30.28 show vlan internal usage

Use the show vlan internal usage Privileged EXEC mode command to display a list
of VLANs used internally by the device (defined by the user).
Syntax
show vlan internal usage
ip internal-usage-vlan 200
30
433