Users Guide

550 | Voice and Video Dell PowerConnect ArubaOS 5.0 | User Guide
Using the CLI to enable WPA fast handover
aaa authentication dot1x <profile>
wpa-fast-handover
For deployments where there are expected to be considerable delays between the controller and APs (for example,
in a remote location where an AP is not in range of another Dell AP), Dell recommends that you enable the “local
probe response” option in the SSID profile. (Generating probe responses on the Dell controller is an optimization
that allows ArubaOS to make better decisions.) This option is enabled by default in the SSID profile. You can
also increase the value for the bootstrap threshold in the AP System profile to minimize the chance of the AP
rebooting due to temporary loss of connectivity with the Dell controller.
Mobile IP Home Agent Assignment
When you enable IP mobility in a mobility domain, the proxy mobile IP module determines the home agent for a
roaming client. An option related to voice clients that you can enable allows on-hook phones to be assigned a new
home agent to load balance voice client home agents across controllers in the mobility domain. See Chapter 19,
“IP Mobility” for more information about mobility.
The VoIP Call Admission Control Profile
VoIP call admission control prevents any single AP from becoming congested with voice calls. You configure call
admission control options in the VoIP Call Admission Control profile which you apply to an AP group or a
specific AP.
Using the WebUI to configure a VoIP Call Admission Control profile
1. Navigate to the Configuration > AP Configuration page. Select either AP Group or AP Specific.
z If you select AP Group, click Edit for the AP group name for which you want to configure VoIP CAC.
z If you select AP Specific, select the name of the AP for which you want to configure VoIP CAC.
2. In the Profiles list, expand the QoS menu, then select the VoIP Call Admission Control profile.
3. In the Profile Details window pane, click the VoIP Call Admission Control profile drop-down list and select
the profile you want to edit.
-or-
To create a new profile, click the VoIP Call Admission Control profile drop-down list and select New. Enter a
new profile name in the field to the right of the drop-down list. You cannot use spaces in VoIP profile names.
4. Configure your desired VoIP Call Admission Control profile settings. Table 120 describes the parameters you
can configure in this profile
.
Table 120 VoIP Call Admission Control Configuration Parameters
Parameter Description
VoIP Call Admission Control Select the Voip Call Admission Control checkbox to enable WiFi VoIP Call Admission
Control features.
VoIP Bandwidth based CAC Select the VoIP Bandwidth based CAC Checkbox to enable call admission controls
based upon bandwidth. If this option is not selected, call admission controls are based
on call counts.
VoIP Call Capacity The maximum number of simultaneous calls that the AP radio can handle. The default
value is 10. You can use the bandwidth calculator in the WebUI to calculate the call
capacity. To access the bandwidth calculator, navigate to Configuration > Management
> Bandwidth Calculator.
VoIP Bandwidth Capacity (kbps) Enter a rate from 1 to 600000 (inclusive) to specify the maximum bandwidth rate that a
radio can handle, in kbps. The default value is 2000 kbps.
VoIP Call Handoff Reservation Specify the percentage of call capacity reserved for mobile VoIP clients on an active
call. The default value is 20%.