Specifications

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Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges
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Chapter 2 Cisco IOS Commands for Access Points and Bridges
cw-min (QOS Class interface configuration mode)
cw-min (QOS Class interface configuration mode)
Use the cw-min QOS Class interface configuration mode command to configure the CAC 802.11
minimum contention window size for a radio interface. Use the no form of the command to remove the
setting.
[no] cw-min 0-10
Syntax Description
Defaults When QoS is enabled, the default cw-min settings for access points match the values in Table 2-6, and
the default cw-min settings for bridges match the values in Table 2-7.
Command Modes QOS Class interface configuration mode
Command History
Examples This example shows how to configure the CAC 802.11 minimum contention window size for the radio
interface:
AP(config)# interface dot11radio 0
AP(config-if)# dot11 qos class voice
AP(config-if-qosclass)# cw-min 2
0-10 Specifies the size of the maximum contention window.
Ta b l e 2-6 Default QoS cw-min Definitions for Access Points
Class of Service Max Contention Window
Background 5
Best Effort 5
Video <100ms Latency 4
Voice <100ms Latency 2
Ta b l e 2-7 Default QoS cw-min Definitions for Bridges
Class of Service Min Contention Window
Background 4
Best Effort 4
Video <100ms Latency 3
Voice <100ms Latency 2
Release Modification
12.3(8)JA This command was introduced.