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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-29225-01
Chapter 15 Configuring QoS
Configuring QoS
http://cisco.com/en/US/docs/wireless/access_point/12.4_10b_JA/command/reference/cr12410b-chap2.
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 configuring the radio.
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).
Step 3 Enter the maximum percentage of the channel to be used for voice in the Max Channel Capacity (%)
field.
Step 4 Enter the maximum percentage of the channel to use for roaming calls in the Roam Channel Capacity
(%) field.
The percentage of the channel used by roaming calls up to the value specified in this field is deducted
from the value you specified in the Max Channel Capacity (%) field.
For example, suppose you have entered 75% in the Max Channel Capacity (%) field and 6% in the
Roam Channel Capacity (%). If roaming calls are using 5% of the channel, a maximum of 70% of the
channel can be used for voice.
Step 5 To use video access category (AC = 2) for signaling, select the Admission Control check box under
Video(CoS 4-5).
Note The admission control settings you have configured in this section will not take effect until you enable
admission control on an SSID.