NETGEAR WN121T user manual Assessing Your Speed Requirements, Wired Ethernet

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NETGEAR Next 300 Mbps Wireless USB 2.0 Adapter WN121T User Manual

Wired Ethernet

As Gigabit Ethernet ports become common on newer computers, wired Ethernet remains a good choice for speed, economy, and security. Gigabit Ethernet can extend up to 100 meters with twisted-pair wiring of CAT-5e or better. A wired connection is not susceptible to interference, and eavesdropping would require a physical connection to your network.

Note: Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and

network overhead, can lower actual data throughput rate.

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 may 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 3-1shows the time to transfer one gigabyte (1 GB) of data using various networking technologies.

Table 3-1. 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

 

 

802.11g 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)

 

 

3-5

v2.0, February 2007

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Contents Netgear Next 300 Mbps Wireless USB 2.0 Adapter Technical Support Europe EU Declaration of Conformity English Product and Publication Details V2.0, February Contents Chapter Troubleshooting Conventions, Formats, and Scope About This ManualHow to Print this Manual How to Use This ManualPrinting the Full Manual Xii Chapter Basic Setup What You Need Before You BeginVerify System Requirements Observe Wireless Location and Range Guidelines What Is in the BoxDefault Wireless Settings Installation V2.0, February Hidden Connecting to Wireless Networks and the Internet Smart Wizard Status Bar Icon ColorsInternet connection. See , Wireless Network Performance Removing the Software Upgrading the Wireless USB 2.0 Adapter SoftwareV2.0, February Disabling the Windows Zero Configuration Utility Network Connections and Wireless SecurityUnderstanding the Smart Wizard Viewing Wireless Networks in Your AreaV2.0, February Finding a Network Adding Profiles ProfilesSetting up a Profile to Connect to an Access Point or Router Setting up a Computer-to-Computer Ad Hoc Profile Ping -t 192.168.0.1 and then click OK Starting a Computer-to-Computer Ad Hoc Network Connection Know Your Wireless Network Settings Wireless SecurityIf WEP Authentication is Used Wireless Network Name Ssid and Security SettingsSetting up WEP Encryption Security Setting up WPA2-PSK Security V2.0, February Setting up WPA-PSK Security Advanced Settings Statistics About Optimizing Wireless Performance Chapter Wireless Network PerformanceV2.0, February Optimizing Your Network Bandwidth Broadband Internet Overview of Home and Small Office Networking TechnologiesAssessing Your Speed Requirements Wired EthernetV2.0, February Troubleshooting Tips Chapter TroubleshootingAppendix B Ad Hoc Mode Is Not Working CorrectlyWireless Default Configuration SettingsUSB Technical SpecificationsDocument Link Appendix B Related DocumentsV2.0, February