User's Manual

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Wireless > Advanced Settings
Use this screen to set up the Router’s advanced wireless settings, which apply to all of
the Router’s wireless networks. These settings should only be adjusted by an expert
administrator as incorrect settings can reduce wireless performance.
Advanced Wireless
Basic Rate The Basic Rate setting is not actually one rate of transmission but a series of rates
at which the Router can transmit. The Router will advertise its Basic Rate to the other wireless
devices in your network, so they know which rates will be used. The Router will also advertise that
it will automatically select the best rate for transmission. Select the appropriate option: Default,
for transmission at all standard wireless rates; 1-2Mbps, for use with older wireless technology;
All, for transmission at all wireless rates; or Wi-Fi Alt. For the Wi-Fi Alt option, basic rates are 1,
2, 5.5, 6, 11, 12, and 24 Mbps; supported rates are 9, 18, 36, 48, and 54 Mbps. If you are not sure
which rate to select, keep the default, Default.
CTS Protection Mode CTS (Clear-To-Send) Protection Mode’s default is Disabled. Select
Auto if you want the device to automatically use CTS Protection Mode when your Wireless-G
products are experiencing severe problems and are not able to transmit to the device in an
environment with heavy 802.11b traffic. This function boosts the device’s ability to catch all
Wireless-G transmissions but will severely decrease performance.
Control TX Rate The Control TX Rate should be set depending on the speed of your wireless
network. Select from a range of transmission speeds, or keep the default, Auto. When the Auto
setting is selected, the Router automatically uses the fastest possible data rate and enables
the Auto-Fallback feature, which negotiates the best possible connection speed between the
Router and a wireless device.
Wireless Afterburner To improve wireless performance when the Router is used with devices
that support SpeedBooster, select Enable. Otherwise, keep the default, Disable.
Beacon Interval Enter a value between 1 and 65,535 milliseconds. The Beacon Interval value
indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Router to
synchronize the wireless network(s). The default value is 100.
DTIM Interval This value, between 1 and 255, indicates the interval of the Delivery Traffic
Indication Message (DTIM). A DTIM field is a countdown field informing clients of the next window
for listening to broadcast and multicast messages. When the Router has buffered broadcast or
multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value. Its
clients hear the beacons and awaken to receive the broadcast and multicast messages. The
default value is 1.
Fragmentation Threshold This value 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 the Fragmentation Threshold too low may result
in poor network performance. Only minor reduction of the default value is recommended. In
most cases, it should remain at its default value of 2346.
RTS Threshold Should you encounter inconsistent data flow, only minor reduction of the default,
2346, is recommended. If a network packet is smaller than the preset RTS threshold size, the
RTS/CTS mechanism will not be enabled. The Router sends Request to 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. The RTS Threshold value should remain at its default value of 2346.
WMM Support The Router supports Wi-Fi Multimedia (WMM) for Quality of Service (QoS).
When WMM Support is enabled, it provides four priority queues for different types of traffic. It
automatically maps the incoming packets to the appropriate queues based on QoS settings (in
the IP or layer 2 header). WMM provides the capability to prioritize traffic in your environment. If
you have other devices on your network that support WMM, select Enable. Otherwise, keep the
default, Disable.
Wireless > Advanced Settings
DRAFT - 6/25/201
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