User's Guide

Virtual Network Services concepts
hwc_vnsintro.fm
VNS overview
9034530-02, March 2010
224 HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide
Default Global Policy definitions provide a placeholder for completion of
incomplete policies for initial default assignment. If a policy is defined as Default
for a particular VNS, incomplete (or NO-CHANGE) attributes are inherited from
Default Global Policy Definitions
Default Global Policy parameter values are:
• Topology = Bridged at AP
• Filter = Deny All
• Rate Control = “Unlimited”
Note that you can change these Global Policy parameters from their default
values during configuration.
5.1.3 WLAN Service
A WLAN Service represents all the RF, authentication and QoS attributes of a
wireless access service. The WLAN Service can be of three basic types:
• Standard - A conventional service. Only APs running HiPath Wireless
software can be part of this WLAN Service. This type of service is usable as
a Bridged @ Controller, Bridged @ AP or Routed topologies. This type of
service provides access for mobile stations. Therefore, policies can be
assigned to this type of WLAN service to create a VNS.
• Third Party AP - A Wireless Service offered by third party APs. This type of
service provides access for mobile stations. Therefore policies can be
assigned to this type of WLAN service to create a VNS. Note that the
requirement is to run the deployment of the third party topology using the
controller as the routing gateway for the segments served by third party APs.
• WDS - This represents a group of APs organized into an interconnection
hierarchy for purposes of providing a Wireless Distribution Service. This type
of service is in essence a wireless trunking service rather than a service that
provides access for stations. As such, this type of service cannot have
policies attached to it.
APs from a WDS group still can provide access for mobile clients via standard
service.
For V7.0 the components of the WLAN Service map more or less completely to
the corresponding components of a VNS in V7.0. The exception is that WLAN
Services are not classified as SSID-based or AAA-based, as VNSs were in
releases prior to V6Rx. Instead, the administrator makes an explicit choice of the
type of authentication to use on the WLAN Service. If his choice of authentication
option conflicts with any of his other authentication or privacy choices the WLAN
Service cannot be enabled.