Billion Electric Company 800VGT - Manual (Page 120)

Billion 800VGT Router
Mission-critical applications
Often, a VPN connection is a mission-critical application for exchanging data between Head and Branch
offices.
This mission-critical application must be connected smoothly, without any dropping. To ensure this, you
should set the priority to the high level to preventing any other applications from saturating the bandwidth.
Voice applications
Voice applications are latency-sensitive. Most VoIP devices use the SIP protocol, which automatically
assigns a port number. . This means that it is better to use a fixed IP address to catch VoIP packets and
rout them as high priority traffic.
The settings shown above will help to improve the quality of your VoIP service when the link is fully
loaded.
Restricted Application
Some users will setup a FTP server for downloading of their files by means of FTP.
The above settings will help to limit utilization of upstream bandwidth by the FTP connections. A time
schedule can be implemented to limit file downloads to non-busy times.
Advanced setting by using IP throttling
With IP throttling you can specify more detail for bandwidth allocation; even if applications are located on
the same level.
Upstream: 928kbps (29*32kbps)
Mission-critical Application: 192kbps (6*32kbps)
Voice Application: 128kbps (4*32kbps)
Restricted Application: 160kbps (5*32kbps)
Other Applications: 448kbps (14*32kbps)
6+4+14+5=29, 29*32kbps=928kbps
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Chapter 4: Configuration