Amer Networks SS2GD8I - Manual (Page 33)

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Quality of Service ToS Configiruation
Quality of Service ToS Configuration (Figure 3-18) works similarly to VLAN Tag Priority, except that the
ToS field (bits 5-7) of the packet is used instead of the QOS field in the VLAN tag. The mapping works in
the same way, mapping high or low priority to the value of the ToS field.
Figure 3-18: Quality of Service ToS Configuraiton
Quality of Service Layer-4 Configuration
Quality of Service Layer-4 Configuration (Figure 3-19) works by prioritizing traffic based on the TCP or
UDP port used. For your convenience, there are predefined groups of ports that are commonly used by
certain applications. You can also define your own priorities for different port ranges in the advanced
mode as well by clicking the “Advance >>” button.
Figure 3-19: QoS Simple Mode