Follow these guidelines when you associate secondary VLANs with a primary VLAN:
The secondary-vlan-list parameter cannot contain spaces. It can contain multiple comma-separated items. Each item can be a single secondary VLAN
ID or a hyphenated range of secondary VLAN IDs.
The secondary-vlan-list parameter can contain multiple community and isolated VLAN IDs.
Enter a secondary-vlan-list or enter the add keyword with a secondary-vlan-list to associate secondary VLANs with a primary VLAN.
Enter the remove keyword with a secondary-vlan-list to clear the association between secondary VLANs and a primary VLAN.
You change the association between a secondary and primary VLAN by removing the existing association and then adding the desired
If you delete either the primary or secondary VLAN, the ports that are associated with the VLAN become inactive.
When you enter the no private-vlan command, the VLAN returns to the normal VLAN mode. All associations on that VLAN are suspended, but the interfaces remain
in private VLAN mode.
When you reconvert the specified VLAN to private VLAN mode, the original associations are reinstated.
If you enter the no vlan command for the primary VLAN, all private VLAN associations with that VLAN are lost. However, if you enter the no vlan command for a secondary VLAN, the private VLAN associations with that VLAN are suspended and return when you recreate the
specified VLAN and configure it as the previous secondary VLAN.