M350 Series User Manual 147
specific WAN interface. Upstream means from LAN to WAN. Downstream means WAN to LAN.
QoS configuration allows user to classify the traffic. Once classified, the traffic will have the
guarantee minimum and limit maximum bandwidth.
Status allows user to monitor the dynamic bandwidth usage.
User can assign the Upstream and Downstream Bandwidth for each interface. The Bandwidth unit
is kilobits per second.
To prevent guaranteed traffic loss, the assigned bandwidth is better not to exceed the real
bandwidth because the allowable traffic quantity may exceed the real bandwidth.
Each Interface has its bandwidth management and in charge to management the traffic egress
from the interface.
Interface with Upstream selection is WAN(Upstream) interface. It is in charge to manage the
traffic egress out to internet from the interface.
Interface with Upstream and Downstream selection is LAN(Downstream) interface. It is in
charge to manage the traffic egress out to LAN from the interface.
The Upstream selection in LAN interface allow user to decide whether the traffic ingress from
the interface to be managed by WAN interface or not.
13.9.1 QoS > ISP Bandwidth