enablevlandlg
To enable a custom VLAN ID on a specific trunk port:
Step 1 On the Switching > VLAN Trunking page under VLAN Trunks, click the Enable VLAN button.
Step 2 In the Enable VLAN window, select a trunked port from the Trunked Port drop-down list. This is the port that you want to use to trunk the VLAN ID indicated in the next field.
Step 3 In the VLAN ID field, type in the VLAN ID to be trunked. This can be a VLAN ID on another switch.
Step 4 Click OK.