Extreme Networks Summit WM User Manual page 132

Configuring the Altitude AP
number. For example, 5. Use a small number to minimize broadcast and multicast delay. The
default value is 5.
Beacon Period - For each radio, type the desired time, in milliseconds, between beacon
transmissions. The default value is 100 milliseconds.
RTS/CTS - For each radio, type the packet size threshold, in bytes, above which the packet will
be preceded by an RTS/CTS (Request to Send/Clear to Send) handshake. The default value is
2346, which means all packets are sent without RTS/CTS. Reduce this value only if necessary.
Frag. Threshold - For each radio, type the fragment size threshold, in bytes, above which the
packets will be fragmented by the AP prior to transmission. The default value is 2346, which
means all packets are sent unfragmented. Reduce this value only if necessary.
Channel - For each radio, click the wireless channel you want the Altitude APs to use to
communicate with wireless devices.
Click Auto to request the ACS to search for a new channel for the Altitude APs, using a channel
selection algorithm. This forces the APs to go through the auto-channel selection process again.
If DRM is enabled (DRM is enabled by default), it scans automatically for a channel, using a
channel selection algorithm.
Depending on the regulatory domain (based on country), some channels may be restricted. The
default value is based on North America. For more information, see Appendix B, "Regulatory
information."
Channel Bonding - Click the bonding method, Up or Down. The primary channel (20MHz) is
bonded with an extension channel that is either 20MHz above (bonding up) or 20MHz below
(bonding down) of the primary channel. Depending on the channel that is selected in the
Request New Channel drop-down list, you may be prevented from bonding Up or Down in the
Channel Bonding drop-down list.
Guard Interval - Click a guard interval, Long or Short, when a 40MHz channel is used. It is
recommended to use a short guard interval in small rooms (for example, a small office space) and
a long guard interval in large rooms (for example, a conference hall).
Auto Tx Power Ctrl - For each radio, click to either enable or disable ATPC from the Auto Tx
Power Ctrl drop-down list. ATPC automatically adapts transmission power signals according to
the coverage provided by the Altitude APs. After a period of time, the system will stabilize itself
based on the RF coverage of your Altitude APs.
Max Tx Power - For each radio, click the appropriate Tx power level from the Max TX Power
drop-down list. The values in the Max TX Power drop-down is in dBm (dBm is an abbreviation
for the power ratio in decibel (dB) of the measured power referenced to one milliwatt).
Min Tx Power - For each radio, if ATPC is enabled, click the minimum Tx power level that the
range of transmit power can be adjusted: 0 to 18 dBm. It is recommended to use 0 dBm to not
limit the potential Tx power level range that can be used.
Auto Tx Power Ctrl Adjust - For each radio, if ATPC is enabled, click the Tx power level that can
be used to adjust the ATPC power levels that the system has assigned. It is recommended to use
0 dBm during your initial configuration. If you have an RF plan that recommended Tx power
levels for each Altitude AP, compare the actual Tx power levels your system has assigned against
the recommended values your RF plan has provided. Use the Auto Tx Power Ctrl Adjust value
to achieve the recommended values.
Channel Plan - For each radio, if ACS is enabled you can define a channel plan for the Altitude
AP. Defining a channel plan allows you to limit which channels are available for use during an
ACS scan. For example, you may want to avoid using specific channels because of low power,
regulatory domain, or radar interference.
For radio b/g/n, click one of the following:
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Summit WM User Guide, Software Version 5.3