User's Guide

Table Of Contents
hwc_vnsconfiguration.fm
Configuring a VNS
Configuring WLAN Services
9034530-02,
March 2010
HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide 343
Works in conjunction with WMM and/or 802.11e, and it is automatically
disabled if both WMM and 802.11e are disabled
Step 6 – Configure Global Admission Control:
Enable admission control. Admission control protects admitted traffic against
new bandwidth demands. Admission control is available for Voice and Video.
If admission control is enabled, you can configure the UL and DL policer
action.
The UL and DL policers act as enforcement of a traffic management system.
Depending on the TSPEC negotiation per traffic class, Voice and Video, you
can configure what actions the Wireless AP takes when admitted traffic has
violated its TSPEC.
You can configure the UL and DL policers per VNS
TSPEC statistics can be viewed in the Admission Control Statistics by
Wireless AP display. For more information, see Chapter 11, “Working
with reports and displays”.
Step 7 – Apply Bandwidth Control Profile
Select the Bandwidth Control Profile that you want to apply to the VNS. The
Bandwidth Control Profiles ensure that no single user on any VNS is able to
consume disproportionate amount of bandwidth. For more information, see
Section 6.2.5, “Working with bandwidth control profiles”, on page 253.
6.9.4.1 Defining priority level and service class
Voice over Internet Protocol (VoIP) using 802.11 wireless local area networks are
enabling the integration of internet telephony technology on wireless networks.
Various issues including Quality-of-Service (QoS), call control, network capacity,
and network architecture are factors in VoIP over 802.11 WLANs.
Wireless voice data requires a constant transmission rate and must be delivered
within a time limit. This type of data is called isochronous data. This requirement
for isochronous data is in contradiction to the concepts in the 802.11 standard that
allow for data packets to wait their turn, in order to avoid data collisions. Regular
traffic on a wireless network is an asynchronous process in which data streams
are broken up by random intervals.
To reconcile the needs of isochronous data, mechanisms are added to the
network that give voice data traffic or another traffic type priority over all other
traffic, and allow for continuous transmission of data.
In order to provide better network traffic flow, the Controller, Access Points and
Convergence Software provides advanced Quality of Service (QoS)
management. These management techniques include: