Billion BiPAC 7800(N)X(L) User Manual page 171

3. If you are actively engaged in P2P and are afraid of slowing down internet access for other users
within your network, you can then use QoS to set a rule that has low priority. In this way, P2P
application will not congest the data transmission with other applications.
Other applications, like FTP, Mail access, users can use QoS to control based on need.
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