SMC Networks SMC7904WBRAS-N2 V2 - QUICK, User Manual

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C
HAPTER
5
| WLAN Configuration
Advanced Settings
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maintain contact with the ADSL Router. They may also carry power-
management information. (Range: 20-1000 TUs; Default: 100 TUs)
◆
DTIM Interval — The rate at which stations in sleep mode must wake
up to receive broadcast/multicast transmissions.
Known also as the Delivery Traffic Indication Map (DTIM) interval, it
indicates how often the MAC layer forwards broadcast/multicast traffic,
which is necessary to wake up stations that are using Power Save
mode. The default value of one beacon indicates that the access point
will save all broadcast/multicast frames for the Basic Service Set (BSS)
and forward them after every beacon. Using smaller DTIM intervals
delivers broadcast/multicast frames in a more timely manner, causing
stations in Power Save mode to wake up more often and drain power
faster. Using higher DTIM values reduces the power used by stations in
Power Save mode, but delays the transmission of broadcast/multicast
frames. (Range: 1-255 beacons; Default: 1 beacon)
◆
Data Rate — The maximum data rate at which the wireless interface
transmits multicast and broadcast packets. (Options: Auto, 1, 2, 5.5,
11, 6, 9, 18, 24, 36, 48, 54 Mbps; Default: Auto)
◆
Preamble Type — Sets the length of the signal preamble that is used
at the start of a data transmission. (Default: Long)
■
Long Preamble: Sets the preamble to long (192 microseconds).
Using a long preamble ensures the wireless interface can support all
802.11b and 802.11g clients.
■
Short Preamble: Sets the preamble according to the capability of
clients that are currently asscociated. Uses a short preamble (96
microseconds) if all associated clients can support it, otherwise a
long preamble is used. The wireless interface can increase data
throughput when using a short preamble, but will only use a short
preamble if it determines that all associated clients support it.
◆
Broadcast SSID — Enables/disables the wireless interface to
broadcast an SSID (service set identifier) to uniquely identify it on the
network.
◆
Aggregation — This option enables Mac Service Data Unit (MSDU)
aggregation. (Default: Enabled)
◆
Short GI — The guard interval between symbols helps receivers
overcome the effects of multipath delays. You can enable a short
interval to increase throughput. (Default: Enabled)