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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-30644-01
Chapter 15 Configuring QoS
Configuring QoS
Figure 15-4 Radio Access Categories Page
Wireless clients using TCLAS and TSPEC can request a class of service through an ADDTS (add Traffic
Stream Request) sent to the access point before the client initiates the traffic stream. The ADDTS
describes the intended traffic, along with the expected nominal rates for that traffic.
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://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 and most WMM VoWLAN IP phones. However, some third
party wireless 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.