Billion Electric Company BiGuard 30 ユーザーズマニュアル

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low network latencies to function properly. If bandwidth is being used by other 
applications such as an FTP server, users using VoIP will experience network lag 
and/or service interruptions during use. To avoid this scenario, this network has 
assigned VoIP with a guaranteed bandwidth and higher priority to ensure smooth 
communications. The FTP server, on the other hand, has been given a maximum 
bandwidth cap to make sure that regular service to both VoIP and normal Internet 
applications is uninterrupted. 
 
2.2.3    Guaranteed / Maximum Bandwidth 
 
Setting a Guaranteed Bandwidth ensures that a particular service receives a 
minimum percentage of bandwidth. For example, you can configure BiGuard 30 to 
reserve 10% of the available bandwidth for a particular computer on the network to 
transfer files. 
 
Alternatively you can set a Maximum Bandwidth to restrict a particular application 
to a fixed percentage of the total throughput. Setting a Maximum Bandwidth of 20% 
for a file sharing program will ensure that no more than 20% of the available 
bandwidth will be used for file sharing. 
 
 
2.2.4    Policy Based Traffic Shaping 
 
Policy Based Traffic Shaping allows you to apply specific traffic policies across a 
range of IP addresses or ports. This is particularly useful for assigning different