SMC Networks EliteConnect SMCE21011 User Manual page 92

| Wireless Settings
C 8
HAPTER
Radio Settings
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)
RTS Threshold (0-2345) — Sets the packet size threshold at which a
◆
Request to Send (RTS) signal must be sent to a receiving station prior
to the sending station starting communications. The access point sends
RTS frames to a receiving station to negotiate the sending of a data
frame. After receiving an RTS frame, the station sends a CTS (clear to
send) frame to notify the sending station that it can start sending data.
If the RTS threshold is set to 0, the access point always sends RTS
signals. If set to 2347, the access point never sends RTS signals. If set
to any other value, and the packet size equals or exceeds the RTS
threshold, the RTS/CTS (Request to Send / Clear to Send) mechanism
will be enabled.
The access points contending for the medium may not be aware of each
other. The RTS/CTS mechanism can solve this "Hidden Node Problem."
(Range: 0-2345 bytes: Default: 2345 bytes)
◆ Short Guard Interval — The 802.11n draft specifies two guard
intervals: 400ns (short) and 800ns (long). Support of the 400ns GI is
optional for transmit and receive. The purpose of a guard interval is to
introduce immunity to propagation delays, echoes, and reflections to
which digital data is normally very sensitive. Enabling the Short Guard
Interval sets it to 400ns. (Default: Disabled)
Aggregate MAC Protocol Data Unit (A-MPDU) — Enables / disables
◆
the sending of this four frame packet header for statistical purposes.
(Default: Enabled)
◆ A-MPDU Length Limit (1024-65535) — Defines the A-MPDU length.
(Default: 65535 bytes; Range: 1024-65535 bytes)
Aggregate MAC Service Data Unit (A-MSDU) — Enables / disables
◆
the sending of this four frame packet header for statistical purposes.
(Default: Enabled)
A-MSDU Length Limit (2290-4096) — Defines the A-MSDU length.
◆
(Default: 4096 bytes; Range: 2290-4096 bytes)
Set Radio — Sets all entered parameters.
◆
Cancel — Cancels the newly entered settings and restores the
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originals.
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