# Enabling NSNA on ports

The following sections describe how to enable NSNA on the ports. For more information about port modes, see Port modes.

The NSNA solution introduces the uplink port. Uplink ports are members of the NSNA VLANs. For more information about the uplink port, see Avaya Secure Network Access Solution Guide, 320817-A.

Important

The Ethernet Routing Switch 5530 has two 10-Gbit ports. You can configure these as uplink ports only. You cannot configure these ports as dynamic ports. Therefore, you must specify ports 1–24 in any NSNA command where you configure dynamic ports. For example, if you enter the `nsna port all dynamic voip-vlans <vidlist>` command, it fails because the two 10-Gbit ports cannot be configured as dynamic ports.

Configure NSNA on ports by using the following command from the Ethernet Interface Configuration mode:

`nsna`

This command includes the following parameters:

`nsna` followed by:
port <portlist> | Identifies a port other than that specified when entering the Ethernet Interface Configuration mode. The parameter <portlist> uses the convention {port[–port][,...]}.
dynamic voip-vlans <vidlist> | Sets the NSNAS 4050 dynamic port configuration, where <vidlist> is the VoIP VLAN IDs (vlan-id[-vlan-id][,...]).
uplink vlans <vidlist> | Defines the NSNAS 4050 uplink VLAN list, where <vidlist> is the NSNA VLAN IDs (vlan-id[-vlan-id][,...]).