Cisco AP541N-A-K9, Руководство администратора

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Wireless
Modifying Advanced Settings
83 Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide
4
Channel
The range of available channels is determined by the mode
of the wireless radio interface and the country code setting.
If you select Auto for the channel setting, and Auto channel is
configured, the access point scans available channels,
immediately selects a channel and begins operation. If
interference or errors occur on that channel, another channel
is automatically selected.
The channel defines the portion of the wireless radio
spectrum the wireless radio uses for transmitting and
receiving. Each mode offers a number of channels,
depending on how the spectrum is licensed by national and
transnational authorities such as the Federal
Communications Commission (FCC) or the International
Telecommunication Union (ITU-R).
Channel
Bandwidth
This field is available only if the wireless radio mode includes
802.11n.
The 802.11n specification allows a 40-MHz-wide channel in
addition to the legacy 20-MHz channel available with other
modes. The 40-MHz channel enables higher data rates but
leaves fewer channels available for use by other 2.4 GHz and
5 GHz devices.
Select a value to set the use of the channel bandwidth.
The default is 20-MHz.
Table 19 Advanced Settings Field Descriptions
Field Description