Chapter 8 Wireless Screen
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8.3.8 Additional Wireless Terms
Table 31
Additional Wireless Terms
TERM
DESCRIPTION
Intra-BSS Traffic
This describes direct communication (not through the NWA)
between two wireless devices within a wireless network. You might
disable this kind of communication to enhance security within your
wireless network.
RTS/CTS Threshold
In a wireless network which covers a large area, wireless devices
are sometimes not aware of each other’s presence. This may cause
them to send information to the AP at the same time and result in
information colliding and not getting through.
By setting this value lower than the default value, the wireless
devices must sometimes get permission to send information to the
NWA. The lower the value, the more often the devices must get
permission.
If this value is greater than the fragmentation threshold value (see
below), then wireless devices never have to get permission to send
information to the NWA.
Preamble
A preamble affects the timing in your wireless network. There are
two preamble modes: long and short.
If a device uses a different
preamble mode than the NWA does, it cannot communicate with
the NWA.
Fragmentation
Threshold
A small fragmentation threshold is recommended for busy
networks, while a larger threshold provides faster performance if
the network is not very busy.
Roaming
If you have two or more NWAs (or other wireless access points) on
your wireless network, you can enable this option so that wireless
devices can change locations without having to log in again. This is
useful for devices, such as notebooks, that move around a lot.
Antenna
An antenna couples Radio Frequency (RF) signals onto air. A
transmitter within a wireless device sends an RF signal to the
antenna, which propagates the signal through the air. The antenna
also operates in reverse by capturing RF signals from the air.
Positioning the antennas properly increases the range and coverage
area of a wireless LAN.
Содержание NWA-3166
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Страница 15: ...15 PART I Introduction Introduction 17 The Web Configurator 29 Tutorials 33 ...
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Страница 32: ...Chapter 2 The Web Configurator NWA 3166 User s Guide 32 ...
Страница 64: ...Chapter 3 Tutorials NWA 3166 User s Guide 64 ...
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Страница 70: ...Chapter 4 Status Screen NWA 3166 User s Guide 70 ...
Страница 122: ...Chapter 8 Wireless Screen NWA 3166 User s Guide 122 ...
Страница 128: ...Chapter 9 SSID Screen NWA 3166 User s Guide 128 ...
Страница 158: ...Chapter 14 IP Screen NWA 3166 User s Guide 158 ...
Страница 166: ...Chapter 15 Rogue AP Detection NWA 3166 User s Guide 166 ...
Страница 186: ...Chapter 17 Internal RADIUS Server NWA 3166 User s Guide 186 ...
Страница 213: ...Chapter 19 Log Screens NWA 3166 User s Guide 213 ...
Страница 214: ...Chapter 19 Log Screens NWA 3166 User s Guide 214 ...
Страница 235: ...Chapter 20 VLAN NWA 3166 User s Guide 235 ...
Страница 236: ...Chapter 20 VLAN NWA 3166 User s Guide 236 ...
Страница 270: ...Appendix B Wireless LANs NWA 3166 User s Guide 270 ...
Страница 300: ...Appendix D IP Addresses and Subnetting NWA 3166 User s Guide 300 ...
Страница 308: ...Appendix E Text File Based Auto Configuration NWA 3166 User s Guide 308 ...
Страница 314: ...Appendix F How to Access and Use the CLI NWA 3166 User s Guide 314 ...
Страница 326: ...Appendix H Customer Support NWA 3166 User s Guide 326 ...
Страница 332: ...Index NWA 3166 User s Guide 332 ...