The Bandwidth Manager app can shape and prioritize network traffic passing through the server (when configured in gateway mode). This app is an essential tool for administrators who wish to implement Quality of Service for services such as browsing, VoIP and SSH so that no one individual or application can adversely affect the performance of the entire network.
To learn more about this app, click here
Documentation for ClearOS 6 can be found here.
Documentation for ClearOS 7 can be found here.