Cisco WRV210 - Wireless-G VPN Router Administration Manual page 46

Configuring the Wireless Network
Adjusting the Advanced Wireless Settings
Cisco Small Business WRV210 Administration Guide
older wireless technology, and All, when the Router can transmit at all
wireless rates. The Basic Rate is not the actual rate of data transmission. If
you want to specify the Router's rate of data transmission, configure the
Transmission Rate setting.
• Transmission Power: The amount of transmission power should be set so
that the Router uses only as much power as needed to reach the farthest
device in your wireless network. This setting can help to prevent unwanted
eavesdropping on your wireless network. You can select from a range of
power levels, from Full, Half, Quarter, Eighth, or Min. The default setting is
Full.
• CTS Protection Mode: CTS (Clear-To-Send) Protection Mode's default
setting is Auto. The Router automatically uses CTS Protection Mode when
your Wireless-G products are experiencing severe problems and are not
able to transmit to the Router in an environment with heavy 802. 1 1b traffic.
This function boosts the Router's ability to catch all Wireless-G
transmissions but severely decreases performance.
• Beacon Interval: The default value is 100. 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.
• DTIM Interval: The default value is 3. 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.
• Fragmentation: Threshold In most cases, this value should remain at its
default value of 2346. 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 the
Fragmentation Threshold too low may result in poor network performance.
Only minor reduction of the default value is recommended.
• RTS Threshold: The RTS Threshold value should remain
at its default value of 2347. Should you encounter inconsistent data flow,
only minor reduction of the default value, 2347, is recommended. If a
network packet is smaller than the preset RTS threshold size, the RTS/CTS
mechanism is not enabled. The Router sends Request to Send (RTS) frames
to a particular receiving station and negotiates the sending of a data frame.
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