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TD-W8900G 54M Wireless ADSL2+ Router User Guide
65
Figure 5-60
¾ Channel: Select the channel you want to use from the drop-down List of Channel. This field
determines which operating frequency will be used. It is not necessary to change the
wireless channel unless you notice interference problems with another nearby access point.
¾ 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.
¾ RTS Threshold: 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 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. In most cases, keep its default value
of 2347.
¾ 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.
¾ Beacon Interval: Enter a value between 20-1000 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. The default value is 100.
¾ Mode: In the drop-down list you can select “54Mbps (802.11g)” or “11Mbps (802.11b)”.
"54Mbps (802.11g)", which allows both 802.11g and 802.11b wireless stations to connect to