User's Manual

Chapter 12: Virtual Access Point (VAP) Configuration
TR0153 Rev. E1 88
Channel Center Frequency (GHz)
1 2.412
2 2.417
3 2.422
4 2.427
5 2.432
6 2.437
7 2.442
8 2.447
9 2.452
10 2.457
11 2.462
Table 11. Access point channels and associated center frequencies
Note that only channels 1, 6, and 11 are non-overlapping.
It is not possible to configure VAPs to use different channels. If the channel
for wlan2 is changed, the channel will be changed for wlan1, wlan3, and wlan4.
However, different devices in a mesh neighborhood can be set to use different
VAP channels in order to reduce co-channel interference.
CLI
The AP channel is set with the ‘channel’ parameter in the ‘wlanN’ interfaces. The example
below shows how to set the AP channel to 6.
> use wlan1
wlan1> set channel=6
Web GUI
The VAP channel can be set via the web interface using the appropriate “wlanN” tab on the
“Wireless Interfaces” page (see Figure 42).
12.6 ESSID
The ESSID, or Extended Service Set Identifier, is used in 802.11 infrastructure networks to
identify a particular network consisting of one or more Basic Service Sets. It is used to
differentiate logical networks that operate on the same channel.