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Chapter 5: Configuring the Wireless-G ADSL Home Gateway
The Applications and Gaming Tab
Wireless-G ADSL Home Gateway
The QoS Tab
QoS
Quality of Service (QoS) ensures better service to high-priority types of network traffic, which may involve
demanding, real-time applications, such as Internet phone calls or videoconferencing.
Enabled/Disabled. To use QoS, select Enable. Otherwise, keep the default, Disable.
Application-based QoS
Application-based QoS manages information as it is transmitted and received. Depending on the settings of the
QoS screen, this feature will assign information a high or low priority for the five preset applications and three
additional applications that you specify.
High priority/Medium priority/Low priority. For each application, select High priority (traffic on this queue
shares 60% of the total bandwidth), Medium priority (traffic on this queue shares 18% of the total bandwidth),
or Low priority (traffic on this queue shares 1% of the total bandwidth).
FTP (File Transfer Protocol). A protocol used to transfer files over a TCP/IP network (Internet, UNIX, etc.). For
example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the
web server using FTP.
HTTP (HyperText Transport Protocol). The communications protocol used to connect to servers on the World Wide
Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client
web browser.
Telnet. A terminal emulation protocol commonly used on Internet and TCP/IP-based networks. It allows a user at
a terminal or computer to log onto a remote device and run a program.
SMTP (Simple Mail Transfer Protocol). The standard e-mail protocol on the Internet. It is a TCP/IP protocol that
defines the message format and the message transfer agent (MTA), which stores and forwards the mail.
POP3 (Post Office Protocol 3). A standard mail server commonly used on the Internet. It provides a message store
that holds incoming e-mail until users log on and download it. POP3 is a simple system with little selectivity. All
pending messages and attachments are downloaded at the same time. POP3 uses the SMTP messaging protocol.
Specific Port#. You can add three more applications by entering their respective port numbers in these fields.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes.
Figure 5-31: QoS