Billion BiPAC 7800DXL, Руководство пользователя

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QoS - Quality of Service
QoS helps you to control the data upload traffic of each application from LAN (Ethernet) to WAN
(Internet). This feature allows you to control the quality and speed of throughput for each application
when the system is running with full upstream load.
Note: ADSL line speed is based on the ADSL sync rate. But there is no QoS on 3G/LTE as the
3G/LTE line speed is various and can not be known exactly.
EWAN Line Speed
Upstream / Downstream: Specify the upstream and downstream rate of the EWAN interface.
Click Apply to save the EWAN rate settings.
Click
Add to enter QoS rules.
IP Version: Select either IPv4 or IPv6 base on need.
Application: Assign a name that identifies the new QoS application rule. Select from the list box for
quick setup.
Direction: Shows the direction mode of the QoS application.

LAN to WAN: You want to control the traffic from local network to the outside (Upstream).
You can assign the priority for the application or you can limit the rate of the application.
Eg: you have a FTP server inside the local network, and you want to have a limited control by
the QoS policy and so you need to add a policy with LAN to WAN direction setting.

WAN to LAN: Control traffic from WAN to LAN (Downstream).
Protocol: Select the supported protocol from the drop down list.
DSCP Marking: Differentiated Services Code Point (DSCP), it is the first 6 bits in the ToS byte.
DSCP Marking allows users to classify the traffic of the application to be executed according to the
DSCP value.