Draytek Vigor2850 Series User Manual page 359

3. Set Inbound/Outbound bandwidth.
Note: The rate of outbound/inbound must be smaller than the real bandwidth to
ensure correct calculation of QoS. It is suggested to set the bandwidth value for
inbound/outbound as 80% - 85% of physical network speed provided by ISP to
maximize the QoS performance.
4. Return to previous page. Enter the Name of Index Class 1 by clicking Edit link. Type the
name "E-mail" for Class 1.
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Vigor2850 Series User's Guide