User Guide
Table Of Contents
- Cisco Wireless ISR and HWIC Access Point Configuration Guide
- Contents
- Preface
- Overview
- Configuring Radio Settings
- Enabling the Radio Interface
- Roles in Radio Network
- Configuring Network or Fallback Role
- Universal Client Mode
- Configuring Universal Client Mode
- Configuring Radio Data Rates
- Configuring Radio Transmit Power
- Configuring Radio Channel Settings
- Enabling and Disabling World Mode
- Enabling and Disabling Short Radio Preambles
- Configuring Transmit and Receive Antennas
- Disabling and Enabling Access Point Extensions
- Configuring the Ethernet Encapsulation Transformation Method
- Enabling and Disabling Reliable Multicast to Workgroup Bridges
- Enabling and Disabling Public Secure Packet Forwarding
- Configuring Beacon Period and DTIM
- Configuring RTS Threshold and Retries
- Configuring Maximum Data Retries
- Configuring Fragmentation Threshold
- Enabling Short Slot Time for 802.11g Radios
- Performing a Carrier Busy Test
- Configuring Multiple SSIDs
- Configuring an Access Point as a Local Authenticator
- Understand Local Authentication
- Configure a Local Authenticator
- Guidelines for Local Authenticators
- Configuration Overview
- Configuring the Local Authenticator Access Point
- Configuring Other Access Points to Use the Local Authenticator
- Configuring EAP-FAST Settings
- Limiting the Local Authenticator to One Authentication Type
- Unblocking Locked Usernames
- Viewing Local Authenticator Statistics
- Using Debug Messages
- Configuring Encryption Types
- Configuring Authentication Types
- Configuring RADIUS Servers
- Configuring and Enabling RADIUS
- Understanding RADIUS
- RADIUS Operation
- Configuring RADIUS
- Default RADIUS Configuration
- Identifying the RADIUS Server Host
- Configuring RADIUS Login Authentication
- Defining AAA Server Groups
- Configuring RADIUS Authorization for User Privileged Access and Network Services
- Starting RADIUS Accounting
- Selecting the CSID Format
- Configuring Settings for All RADIUS Servers
- Configuring the Access Point to Use Vendor-Specific RADIUS Attributes
- Configuring the Access Point for Vendor-Proprietary RADIUS Server Communication
- Configuring WISPr RADIUS Attributes
- Displaying the RADIUS Configuration
- RADIUS Attributes Sent by the Access Point
- Configuring and Enabling RADIUS
- Configuring VLANs
- Configuring QoS
- Channel Settings
- Protocol Filters
- Supported MIBs
- Error and Event Messages
- Glossary
- Index
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Cisco Wireless ISR and HWIC Access Point Configuration Guide
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Chapter 9 Configuring QoS
Configuring QoS
Note This release continues to support existing 7920 wireless phone firmware. Do not attempt to use
the new standard (IEEE 802.11e draft 13) QBSS Load IE with the 7920 Wireless Phone until
new phone firmware is available for you to upgrade your phones.
This example shows how to enable IEEE 802.11 phone support with the legacy QBSS Load
element:
AP(config)# dot11 phone
This example shows how to enable IEEE 802.11 phone support with the standard (IEEE 802.11e
draft 13) QBSS Load element:
AP(config)# no dot11 phone dot11e
This example shows how to stop or disable the IEEE 802.11 phone support:
AP(config)# no dot11 phone
3. Policies you create on the access point—QoS Policies that you create and apply to VLANs or to the
access point interfaces are third in precedence after previously classified packets and the QoS
Element for Wireless Phones setting.
4. Default classification for all packets on VLAN—If you set a default classification for all packets on
a VLAN, that policy is fourth in the precedence list.
Using Wi-Fi Multimedia Mode
When you enable QoS, the access point uses Wi-Fi Multimedia (WMM) mode by default. WMM
provides these enhancements over basic QoS mode:
• The access point adds each packet’s class of service to the packet’s 802.11 header to be passed to
the receiving station.
• Each access class has its own 802.11 sequence number. The sequence number allows a high-priority
packet to interrupt the retries of a lower-priority packet without overflowing the duplicate checking
buffer on the receiving side.
• For access classes that are configured to allow it, transmitters that are qualified to transmit through
the normal backoff procedure are allowed to send a set of pending packets during the configured
transmit opportunity (a specific number of microseconds). Sending a set of pending packets
improves throughput because each packet does not have to wait for a backoff to gain access; instead,
the packets can be transmitted immediately one after the other.
The access point uses WMM enhancements in packets sent to client devices that support WMM. The
access point applies basic QoS policies to packets sent to clients that do not support WMM.
Use the no dot11 qos mode wmm configuration interface command to disable WMM using the CLI. To
disable WMM using the web-browser interface, unselect the check boxes for the radio interfaces on the
QoS Advanced page.
Configuring QoS
QoS is disabled by default (however, the radio interface always honors tagged 802.1P packets even when
you have not configured a QoS policy). This section describes how to configure QoS on your access
point. It contains this configuration information: