Configuring an AP’s Radio Channels
AP channel configuration is configurable for 802.11bg which consists of 11 overlapping channels in United States deployments. Channel configuration for 802.11a is not an issue because there are no overlapping channels within the 802.11a spectrum.
In the 802.11b/g standard, there are 14 channels. As a result of FCC rules, there are 11 channels: channels 1 through 11 are used in the USA. Other countries may also use channels 12, 13, and 14. These channels represent the center frequency of the wireless transmission wave.
In practice, 802.11bg has only three operational frequencies in a given area, and most deploy-
Configuring an AP’s Radio Channels
ments use channels 1, 6, and 11, for which there is no overlap.
Figure 66: Channel 1, 6, and 11
To assign a channel, use the Dot11Radio interface command channel. With the Web UI, configure a channel by clicking Configuration > Wireless > Radio, select a radio and then select a Channel from the drop-down list.
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