User's Guide

USER GUIDE
• Protection Mode: 802.11b and 802.11g networks may occupy the same frequency
range, but they don’t speak the same language (802.11b uses CCK while 802.11g uses
OFDM). To co-exist within the same space, 802.11g must make allowances for 802.11b
by using CCK for a short period of time (RTS or Request To Send). Selecting ‘Auto’
detects the presence of 802.11b and automatically begins protection. Selecting ‘None’
will not provide protection under any circumstances. Selecting Always will always
provide protection even if 802.11b is not present.
o Enabling this feature will reduce 802.11g performance. However, if protection
is disabled and 802.11b clients are present on the same channel, 802.11g
performance will be affected because there will be collisions.
• Protection Rate: Determines the rate to generate the RTS/CTS frames when
protection mode is enabled.
• Protection Type: The protection will apply to CTS (Clear To Send) or both RTS and
CTS. The RTS-CTS setting provides more robust protection but performance will be
reduced for 802.11g.
• Short Slot Time: If the network contains a combination of 802.11b and 802.11g user
devices, enabling this will give precedence to 802.11g traffic.
Click the ‘Update’ button at the bottom of the page to save any changes made to the settings in
this page. Click the ‘Apply Configuration’ tab to make the configuration information active in
the Access/One Network cloud.
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