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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-14209-01
Chapter 15 Configuring QoS
Configuring QoS
Note In this release, clients are blocked from using an access category when you select Enable for Admission
Control.
Configuring Nominal Rates
When an access point receives an ADDTS (add traffic stream) request from a WMM client, it checks the
nominal rate or minimum PHY rate in the ADDTS request against the nominal rates defined by the CLI
command traffic-stream. If they do not match, the access point rejects the ADDTS request.
If you choose Optimized Voice Settings (see Figure 15-4), the following nominal rates are configured:
• 5.5Mbps, 6.0Mbps, 11.0Mbps, 12.0Mbps, and 24.0Mbps
Information about the traffic-stream command can be found in the Command Reference for Cisco
Aironet Access Points and Bridges, which is available at cisco.com at the following URL:
http://www.cisco.com/en/US/docs/wireless/access_point/12.4_10b_JA/command/reference/cr12410b-c
hap2.html#wp3257080
Note The above rates work fine for Cisco phones. Third parties wireless phones may have a different nominal
rate or minimum PHY rate. You may need to enable additional nominal rates for these phones.
Optimized Voice Settings
Using the Admission Control check boxes, you can control client use of the access categories. When you
enable admission control for an access category, clients associated to the access point must complete the
WMM admission control procedure before they can use that access category. However, access points do
not support the admission control procedure in this release, so clients cannot use the access category
when you enable Admission Control.
Configuring Call Admission Control
Configuring Call Admission Control (CAC) on an access point involves the following:
1. Configuring the radio.
2. Enabling admission control on an SSID.
Configuring the Radio
This section describes how to configure admission control on an access point’s radio.
For a list of Cisco IOS commands for configuring admission control using the CLI, consult the Cisco
IOS Command Reference for Cisco Aironet Access Points and Bridges.
Follow these steps to configure admission control on a radio:
Step 1 Click the Access Categories page of the radio you want to configure.
Figure 15-4 shows an example of an Access Categories page.
Step 2 Select the Admission Control check box under Voice(CoS 6-7).
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