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RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual
Fine-Tuning Your Network 7-4
v1.0, January 2010
Assessing Your Speed Requirements
Because your Internet connection is likely to operate at a much lower speed than your local
network, faster local networking technologies might not improve your Internet experience.
However, many emerging home applications require high data rates. For example:
• Streaming HD video requires 10 to 30 Mbps per stream. Because latency and packet loss can
disrupt your video, plan to provide at least twice the capacity you need.
• Streaming MP3 audio requires less than 1 Mbps per stream and does not strain most modern
networks. Like video, however, streaming audio is also sensitive to latency and packet loss, so
a congested network or a noisy link can cause problems.
• Backing up computers over the network has become popular due to the availability of
inexpensive mass storage. Table 7-1 shows the time to transfer 1 gigabyte (GB) of data using
various networking technologies.
Table 7-1. Theoretical Transfer Time for 1 Gigabyte
Network Connection Theoretical Raw Transfer Time
Gigabit wired Ethernet 8 seconds
RangeMax NEXT Wireless-N 26 seconds
Powerline HD 40 seconds
100 Mbps wired Ethernet 80 seconds
802.11n wireless 45 seconds
802.11g wireless 150 seconds
802.11b wireless 700 seconds
10 Mbps wired Ethernet 800 seconds
Cable modem (3 Mbps) 2700 seconds
Analog modem (56 kbps) 144,000 seconds (40 hours)