Configuring Data Rates - Cisco 9971 Deployment Manual

The Cisco Unified WCS can be utilized to verify signal strength and coverage.

Configuring Data Rates

It is recommended to disable rates below 12 Mbps for 802.11a and below 12 Mbps for 802.11b/g deployments where capacity
and range are factored in for best results.
If 802.11b clients are not allowed in the wireless LAN, then it is recommended to disable the 1, 2, 5.5, 11 Mbps data rates.
When 802.11b clients exist in the wireless network, then an 802.11b rate must be enabled and only an 802.11b rate can be
configured as a basic rate. In this case, is suggested to enable the data rates 11 Mbps and higher.
If 802.11b clients are not allowed in the wireless network, then it is strongly recommended to disable the data rates below 12
Mbps. This will eliminate the need to send CTS frames for 802.11g protection as 802.11b clients can not detect these OFDM
frames.
The recommended data rate configuration is the following:
802.11 Mode
802.11a
802.11b
802.11g
Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide
Basic (Mandatory)
Data Rates
12 Mbps
11 Mbps
12 Mbps
Supported (Optional)
Data Rates
18 - 24, <36-54> Mbps
None
18 – 24, <36-54> Mbps
Disabled
Data Rates
6, 9, <36-54> Mbps
1, 2, 5.5 Mbps
6, 9, <36-54> Mbps
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