NETGEAR DGND3300 - Manual (Page 91)

RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual
Fine-Tuning Your Network 6-1
v1.0, March 2009
Chapter 6
Fine-Tuning Your Network
This chapter describes features to help you manage your RangeMax Dual Band Wireless-N
Modem Router.
This chapter includes the following sections:
• “Assessing Your Speed Requirements” on page 6-2
• “Optimizing Your Network Bandwidth” on page 6-3
• “Optimizing Wireless Performance” on page 6-5
• “Changing the MTU Size” on page 6-6
Common connection types and their speed and security considerations are:
• Broadband Internet. Your Internet connection speed is determined by your modem type,
(ADSL), as well as the connection speed of the sites to which you connect, and general
Internet traffic. ADSL modem connections are asymmetrical, meaning they have a lower data
rate to the Internet (upstream) than from the Internet (downstream). Keep in mind that when
you connect to another site that also has an asymmetrical connection, the data rate between
your sites is limited by each side’s upstream data rate. A typical residential ADSL connection
provides a downstream throughput of about 1 to 3 megabits per second (Mbps). Newer
technologies such as ADSL2+ and Fiber to the Home (FTTH) will increase the connection
speed to tens of Mbps.
• Wireless. Your modem router provides a wireless data throughput of up to 300 Mbps using
technology called multiple input, multiple output (MIMO), in which multiple antennas
transmit multiple streams of data. The use of multiple antennas also provides excellent range
and coverage. With the introduction of the newer WPA and WPA2 encryption and
authentication protocols, wireless security is extremely strong.
To get the best performance, use RangeMax NEXT adapters for your computers. Although
your modem router is compatible with older 802.11b and 802.11g adapters, the use of these
older wireless technologies in your network can result in lower throughput overall (typically
less than 10 Mbps for 802.11b and less than 40 Mbps for 802.11g). In addition, many older
wireless products do not support the latest security protocols, WPA and WPA2.