Prestige 334W User’s Guide

Table 18-2 Media Bandwidth Management Priorities

Priority Levels: Traffic with a higher priority gets through faster while traffic with a lower priority is dropped if the network is congested.

High

Typically used for voice traffic or video that is especially sensitive to jitter (jitter is the

variations in delay).

 

 

 

Mid

Typically used for “excellent effort” or better than best effort and would include important

business traffic that can tolerate some delay.

 

 

 

Low

This is typically used for non-critical “background” traffic such as bulk transfers that are

allowed but that should not affect other applications and users.

 

 

 

18.1.6 Bandwidth Management Services

The following is a description of the services that you can select and apply media bandwidth management to in BW Setup.

Xbox Live

This is Microsoft’s online gaming service that lets you play multiplayer Xbox games on the Internet via broadband technology. Xbox Live uses port 3074.

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.

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.

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 IMAP - port 143 SMTP - port 25 HTTP - port 80

Media Bandwidth Management

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