IG7500 Administration Manual
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Figure 4-19.
Wireless – Security
4.5.3 Advanced
It allows you to configure advanced features of the wireless LAN interface. You can select
a particular channel on which to operate, force the transmission rate to a particular speed,
set the fragmentation threshold, set the RTS threshold, set the wakeup interval for clients
in power-save mode, set the beacon interval for the access point, set XPress mode and
set whether short or long preambles are used. Click "Save Settings" to configure the
advanced wireless options. (Figure 4-20)
Protocol:
Channel
: Select the appropriate channel from the list provided to correspond with your
network settings. All devices in your wireless network must use the same channel in
order to function correctly.
Channel Width:
User can choose 20MHz or 40MHz
Channel Extension:
Specify if the extension channel should be in the “below” or
“above
”
sideband .
Rate:
Select the basic rate that wireless clients must support.
WMM (Wi-Fi Multimedia)
: Feature that improves the experience for audio, video and
voice applications over a Wi-Fi network.
Fragmentation Threshold
: This value should remain at its default setting of 2346. The
range is 256~2346 bytes. It specifies the maximum size for a packet before data is
fragmented into multiple packets. If you experience a high packet error rate, you may
slightly increase the Fragmentation Threshold. Setting this value too low may result in
poor network performance. Only minor modifications of this value are recommended.
RTS Threshold
: This value should remain at its default setting of 2347. The range is
0~2347 bytes. Should you encounter inconsistent data flow, only minor modifications
are recommended. If a network packet is smaller than the packet RTS threshold size,
the RTS/CTS mechanism will not be enabled. The IAD sends Request of Send (RTS)
frames to a particular receiving station and negotiates the sending of a data frame. After
receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to
acknowledge the right to begin transmission.