Predefined Bandwidth Management Services; Services And Port Numbers - ZyXEL Communications NBG-417N User Manual

Chapter 15 Bandwidth Management

15.5.3 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.
Table 59 Media Bandwidth Management Setup: Services
SERVICE
FTP
WWW
Telnet
E-Mail
VoIP (SIP)
BitTorrent
Gaming

15.5.4 Services and Port Numbers

See Appendix E on page 235
134
DESCRIPTION
File Transfer Program enables fast transfer of files, including large files that may
not be possible by e-mail. FTP uses port number 21.
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 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.
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
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.
BitTorrent is a free P2P (peer-to-peer) sharing tool allowing you to distribute
large software and media files using ports 6881 to 6889. BitTorrent requires you
to search for a file with a searching engine yourself. It distributes files by
corporation and trading, that is, the client downloads the file in small pieces and
share the pieces with other peers to get other half of the file.
Online gaming services lets you play multiplayer games on the Internet via
broadband technology. One example is Microsoft's Xbox Live, which uses port
3074. As of this writing, your NBG-417N supports Xbox, Playstation, Battlenet
and MSN Game Zone.
for commonly used services and port numbers.
NBG-417N User's Guide