ZyXEL Communications NBG-417N - Manual (Page 155)

Chapter 16 Bandwidth Management
NBG-417N User’s Guide
155
16.5.3 Predefined Bandwidth Management Services
The following is a description of the services that you can select and to which you
can apply media bandwidth management in the Management > Bandwidth
MGMT > Advanced screen.
Port Range Enter the range of ports for which the bandwidth management rule
applies.
Policy Select Max or Min and specify the maximum or minimum bandwidth
allowed for the rule in bits per second in the field below.
Rate (bps) Type or select the maximum or minimum bandwidth allowed (refer to
the field above) for the rule in bits per second.
If you type the amount of bandwidth, the selection automatically
becomes User Defined. If you select the amount of bandwidth, the
field automatically displays the value in Kbps.
Apply Click Apply to save your customized settings.
Reset Click Reset to begin configuring this screen afresh.
LABEL DESCRIPTION
Table 58 Media Bandwidth Management Setup: Services
SERVICE DESCRIPTION
FTP File Transfer Program enables fast transfer of files, including large files
that may not be possible by e-mail. FTP uses port number 21.
WWW The World Wide Web (WWW) is an Internet system to distribute
graphical, hyper-linked information, based on Hyper Text Transfer
Protocol (HTTP) - a client/server protocol for the World Wide Web. The
Web is not synonymous with the Internet; rather, it is just one service
on the Internet. Other services on the Internet include Internet Relay
Chat and Newsgroups. The Web is accessed through use of a browser.
WWW uses port 80.
Telnet Telnet is the login and terminal emulation protocol common on the
Internet and in UNIX environments. It operates over TCP/IP networks.
Its primary function is to allow users to log into remote host systems.
Telnet uses port 23.
E-Mail Electronic mail consists of messages sent through a computer network
to specific groups or individuals. Here are some default ports for e-mail:
POP3 - port 110
SMTP - port 25
VoIP (SIP) Sending voice signals over the Internet is called Voice over IP or VoIP.
Session Initiated Protocol (SIP) is an internationally recognized
standard for implementing VoIP. SIP is an application-layer control
(signaling) protocol that handles the setting up, altering and tearing
down of voice and multimedia sessions over the Internet.
SIP is transported primarily over UDP but can also be transported over
TCP, using the default port number 5060.