Extreme Networks Summit WM User Manual page 90

Configuring the Altitude AP
NOTE
ACS in the 2.4 GHz radio band with 40 MHz channels is not recommended due to severe co-channel interference.
Dynamic Channel Selection (DCS) - DCS allow an Altitude AP to monitor traffic and noise levels
on the current channel that the Altitude AP operates on. DCS can operate in two modes:
Monitor - When DCS is enabled in monitor mode and traffic or noise levels exceed the
configured DCS thresholds, an alarm is triggered and an information log is generated. The DCS
monitor alarm is used for evaluating the RF environment of your deployed Altitude APs.
Active - When DCS is enabled in active mode and traffic or noise levels exceed the configured
DCS thresholds, an alarm is triggered and an information log is generated. In addition, the
Altitude AP will cease operating on the current channel and ACS is employed to automatically
select an alternate channel for the Altitude AP to operate on. DCS will not trigger channel
changes on neighboring Altitude APs.
NOTE
If DCS is enabled, DCS statistics can be viewed in the Wireless Statistics by Altitude APs display. For more
information, see
Auto Tx Power Control (ATPC) - ATPC guarantees your LAN a stable RF environment by
automatically adapting transmission power signals according to the coverage provided by the
Altitude APs. ATPC can be either enabled or disabled. When you disable ATPC, you can elect to
maintain using the current Tx power setting ATPC had established:
If you elect to maintain using the ATPC power setting from an individual Altitude AP edit page,
the displayed Current Tx Power Level value becomes the new Max Tx Power value for that
Altitude AP.
If you elect to maintain using the ATPC power setting from the AP Multi-edit page, for every
Altitude AP the Current Tx Power Level value in the database is used to set the Max Tx Power
value.
If you elect not to maintain using the ATPC power setting, the current Max Tx Power value is
applied.
Modifying Altitude 802.11n AP 450/451 radio properties
The Altitude 802.11n AP 450/451 is a 802.11n (draft)-compliant access point. The following section
discusses how to modify an Altitude 802.11n AP.
For information on how to modify an Altitude AP 350-2i/350-2d or the Outdoor AP, see
Altitude AP 350-2i/350-2d radio properties" on page
Channel bonding
Channel bonding improves the effective throughput of the wireless LAN. In contrast to the Altitude AP
35xx which uses radio channel spacings that are only 20MHz wide, the Altitude 802.11n AP can use two
channels at the same time to create a 40MHz wide channel. To achieve a 40MHz channel width, the
Altitude 802.11n AP employs channel bonding - two 20MHz channels at the same time.
90
Chapter 10, "Working with reports and displays."
106.
Summit WM User Guide, Software Version 5.3
"Modifying