D-Link DGS-3000 Reference Manual page 42

DGS-3000 Series Layer 2 Managed Gigabit Ethernet Switch CLI Reference Guide
name can be up to 32 characters long.
vlanid - (Optional) Specify the VLAN ID of the private VLAN or its secondary VLAN.
<vidlist> - Enter the VLAN ID used here.
Restrictions
Only Administrators and Operators can issue this command.
Example
To display private VLAN settings:
DGS-3000-26TC:admin#show private_vlan
Command: show private_vlan
Primary VLAN 3
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Promiscuous Ports
Trunk Ports
Total Entries: 1
DGS-3000-26TC:admin#
:
:
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