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Wireless-N ADSL2+ Gateway

• 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 Gateway to synchronize the wireless

network. 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 Gateway 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 value, 2346,

is recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism

will not be enabled. The Gateway 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

2346.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click

the Cancel Changes button to undo your changes. Click Help for more information.

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Wireless Tab