Rules for configuring PVLANs
The default VLAN (VLAN 1) cannot be configured as a PVLAN.
An existing VLAN cannot be configured as a secondary VLAN in a PVLAN.
A secondary VLAN cannot be reconfigured as the primary VLAN and a primary VLAN cannot be reconfigured as a secondary VLAN.
To change the VLAN types, you must reconfigure the primary VLAN as a normal VLAN, and then reconfigure the PVLAN.
You cannot reconfigure or delete a primary VLAN until its associated secondary VLANs have been deleted.
A PVLAN cannot be configured as a Management VLAN.
For information about rules for PVLANs when used with other networking features, see PVLAN Interaction with other features.