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