User Manual

User’s Guide Chapter 4 – Reference Manual
Configuration | Wireless | Advanced Settings
For normal operation the following default settings do not need to be modified.
Changing the P-520r advanced settings requires expert knowledge of the 802.11
protocol and the radio functionality.
The configuration menu Configuration | Wireless | Advanced Settings allows administrators to
change low level radio parameters and antenna diversity settings:
Figure 32 – Advanced Wireless Settings
Operational Rate Set – this setting specifies the set of Supported and Basic data rates at which the
station may transmit data. Each rate shall be within the range from 2 to 127, corresponding to data
rates in increments of 500 kb/s from 1 Mb/s to 63.5 Mb/s, and shall be supported for receiving data.
This value is reported in transmitted Beacon, Probe Request, Probe Response, Association Request,
Association Response, Reassociation Request, and Reassociation Response frames, and is used to
determine whether a BSS with which the station desires to synchronize is suitable.
Operational rate set is defined as hexadecimal string where highest bit of each digit represents if
Supported rate is the Basic rate (basic rate = supported rate | 0x80, where “|” means “bitwise or”
operation).
Beacon Period – this setting specifies t
he amount of time between beacons in milliseconds. A beacon is a
packet broadcast by the access point to synchronize the wireless network.
RTS Threshold – this setting specifies the maximum packet size beyond which the Wireless LAN
Card invokes its RTS/CTS mechanism. Packets that exceed the specified RTS threshold trigger the
RTS/CTS mechanism. The NIC transmits packets smaller than this threshold without using RTS/CTS
[[0-2347] default: 2347 (2347 means that RTS is disabled)].
Fragmentation Threshold – the fragmentation threshold, specified in bytes, determines whether
packets will be fragmented and at what size. On an 802.11 wireless LAN, packets exceeding the
fragmentation threshold are fragmented, i.e., split into, smaller units suitable for the circuit size.
Packets smaller than the specified fragmentation threshold value are not fragmented [[256-2346]
default: 2346 (2346 means that fragmentation is disabled)].
Enable TX and RX Diversity – choose this option to enable or disable the antenna diversity.
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