Configuring Wireless Networks
Configuring Advanced Wireless Settings
Cisco RV130/RV130W Wireless Multifunction VPN Router Administration Guide 71
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CTS Protection 
Mode
The device automatically uses CTS (Clear-To-Send) 
Protection Mode when your Wireless-N and Wireless-G 
devices 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-N and Wireless-G transmissions but will 
severely decrease performance. The default is Auto.
Beacon Interval The Beacon Interval value indicates the frequency 
interval of the beacon. A beacon is a packet broadcast 
by the device to synchronize the wireless network. 
Enter a value between 40 and 3,500 milliseconds. 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 device 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.