Extreme Networks Summit WM20, Руководство пользователя

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Configuring the Wireless AP
Summit WM20 User Guide, Software Release 4.2
72
large number. For example, 5. Use a small number for broadcast and multicast delay. The default
value is
1 .
●
Beacon Period – Type the desired time, in milliseconds, between beacon transmissions. The
default value is 100 milliseconds.
●
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.
●
802.11b – Select to enable the 802.11b mode of the 802.11b/g radio. If disabled, the AP will not
accept associations from 11b clients.
●
802.11g – Select to enable the 802.11g mode of the 802.11b/g radio. If disabled, the AP will use
11g-specific (OFDM) rates with all of the associated clients.
●
Channel – Select the wireless channel that the Wireless 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 Wireless
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 – For each radio, select the appropriate Tx power level from the Max TX Power
Level drop-down menu. The values in the Max TX Power Level drop down is in dBm (dBm is an
abbreviation for the power ratio in decibel (dB) of the measured power referenced to one
milliwatt). If Dynamic Radio Management (DRM) was enabled on the DRM screen, this option is
read-only.
●
Rx Diversity – Select Alternate 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 Alternate . If only
one antennae is connected, use the corresponding Left or Right diversity setting. Do not use
Alternate 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: 1 ,
2 , 5.5 , or 11 Mbps for 11b and 11b+11g modes. Select 1 , 2 , 5.5 , 6 , 11 , 12 , or 24 Mbps for 11g-only
mode. If necessary, the Max Basic Rate choices adjust automatically to be higher or equal to the
Min Basic Rate . If both Min Basic Rate and Max Basic Rate are set to an 11g-specific (OFDM)
rate, (for example, 6 , 12 , or 24 Mbps) all basic rates will be 11g-specific.
●
Max Basic Rate – Select the maximum data rate that must be supported by all stations in a BSS:
1 , 2 , 5.5 , or 11 Mbps for 11b and 11b+11g modes. Select 1 , 2 , 5.5 , 6 , 11 , 12 , or 24 Mbps for 11g-only
mode. If necessary, the Max Basic Rate choices adjust automatically to be higher or equal to the
Min Basic Rate . If both Min Basic Rate and Max Basic Rate are set to an 11g-specific (OFDM)
rate, (for example, 6 , 12 , or 24 Mbps) all basic rates will be 11g-specific.
●
Max Operational Rate – Select the maximum data rate that clients can operate at while
associated with the AP: 1 , 2 , 5.5 , or 11 Mbps for 11b-only mode. Select 1 , 2 , 5.5 , 6 , 9 , 11 , 12 , 18 , 24 ,