Configuring a VNS

Setting up a VNS defines a binding between a default role specified for wireless users and an associated WLAN (Wireless Local Area Network) Service set, as shown in VNS Configuration Flow.

There are conceptually hierarchical dependencies on the configuration elements of a VNS. However, the provisioning framework is flexible enough that you may select an existing dependent element or create one on the fly. Therefore, each element can be provisioned independently (WLAN services, Topologies, and Roles). For service activation, all the pieces will need to be in place, or defined during VNS configuration.

You can use the VNS Creation Wizard to guide you through the necessary steps to create a virtual network service (and the necessary subcomponents during the process). The end result is a fully resolved set of elements and an active service.

The recommended order of configuration events is:

1. Before you begin, draft out the type of services the system is expected to provide — wireless services, encryption types, infrastructure mapping (VLAN (Virtual LAN)s), and connectivity points (switch ports). Switch port VLAN configuration/trunks must match the controller's.
2. Set up basic controller services such as NTP, Routing, DNS, and RADIUS Servers, using one of the following methods:
   • Run the Basic Configuration Wizard, or
   • Manually define the necessary infrastructure components such as RADIUS Servers. RADIUS Servers are defined via the VNS > Global > Authentication.
3. Define Topologies. Topologies represent the controller‘s points of network attachment. Therefore, VLANs and port assignments need to be coordinated with the corresponding switch ports.
4. Define Roles. Roles are typically bound to Topologies. Role application assigns user traffic to the corresponding network point of attachment.
   • Roles define mobile user access rights by filtering.
   • Polices reference the mobile user's traffic rate control profiles.
5. Define the WLAN Service.
   • Define SSID and privacy settings for the wireless link.
   • Select the set of APs and Radios on which the service is present.
   • Configure the method of credential authentication for wireless users (None, Internal CP, External CP, Guest Portal, 802.1x[EAP]).
6. Create a VNS that binds the WLAN Service to the Role that will be used for default assignment upon user network attachment.

   The VNS configuration page in turn allows for in-place creation of any dependencies it may require. For example:

   • Create a new WLAN Service.
   • Create a new Role.
     • Create a new Topology.
     • Create a new Class of Service.