User guide

Configuring the Altitude AP
Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 User Guide
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● RTS/CTS Threshold – 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 – 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.
● 802.11a – Select to enable the 802.11a radio.
● 802.11j – Select to enable the 802.11j mode for the 802.11a radio. This option is available only in
Japan. When enabled, it allows access to the 4.9Ghz and 5.0Ghz wireless bands.
● Channel – Select the wireless channel that the Altitude AP will use to communicate with wireless
devices. Depending on the regulatory domain (based on country), some channels may be
restricted. The default value is based on North America. The Auto selection allows the Altitude
AP to select the appropriate channel automatically. For more information, see Appendix
B, “Regulatory Information.”
If DRM is enabled (DRM is enabled by default), it scans automatically for a channel, using a
channel selection algorithm. For more information, see “Configuring Dynamic Radio
Management” on page 77.
● Tx Power Level – Select the Tx power level: Min, 13%, 25%, 50%, or Max. If Dynamic Radio
Management (DRM) was enabled on the DRM screen, this option is read-only.
● Rx Diversity – Select Best for the best signal from both antennas, or Left or Right to choose
either of the two diversity antennas. The default and recommended selection is Best. If only one
antennae is connected, use the corresponding Left or Right diversity setting. Do not use Best if
two identical antennas are not used.
● Tx Diversity – Select Best for the best signal from both antennas, or Left or Right to choose
either of the two diversity antennas. The default selection is Best, which maximizes performance
for most clients. However, some clients may behave oddly with Tx Diversity set to Best. Under
those circumstances, it is recommended to use either Left or Right for Tx Diversity. If only one
antennae is connected, use the corresponding Left or Right diversity setting. Do not use Best if
two identical antennas are not used.
● Min Basic Rate – Select the minimum data rate that must be supported by all stations in a BSS: 6,
12, or 24 Mbps. If necessary, the Max Basic Rate choices adjust automatically to be higher or
equal to the Min Basic Rate.
● Max Basic Rate – Select the maximum data rate that must be supported by all stations in a BSS:
6, 12, or 24 Mbps. If necessary, the Max Basic Rate choices adjust automatically to be higher or
equal to the Min Basic Rate.
● Max Operational Rate – Select the maximum data rate that clients can operate at while
associated with the AP: 6, 9, 12, 18, 24, 36, 48, or 54 Mbps. If necessary, the Max Operational Rate
choices adjust automatically to be higher or equal to the Max Basic Rate.
NOTE
Radio a channels 100 to 140 occupy the 5470-5725 MHz band in the regulatory domains of the European
Union and European Union free trade countries. Radio B/G Channels 12 to 14 are not available in North
America.
● No of Retries for Background BK – Select the number of retries for the Background transmission
queue. The default value is 4. The recommended setting is adaptive (multi-rate).
● No of Retries for Best Effort BE – Select the number of retries for the Best Effort transmission
queue. The default value is 4. The recommended setting is adaptive (multi-rate).