Asus GigaX2024SX - Manual (Page 153)

these priority types will automatically disable the other.
Priority
The switch allows you to choose between using IP Precedence or DSCP priority.
Select one of the methods or disable this feature.
Command Attributes
• Disabled – Disables both priority services. (This is the default setting.)
• IP Precedence – Maps layer 3/4 priorities using IP Precedence.
• IP DSCP – Maps layer 3/4 priorities using Differentiated Services Code Point
Mapping.
Web – Click Priority, IP Precedence/DSCP Priority Status. Select Disabled,
IP Precedence or IP DSCP from the scroll-down menu, then click Apply.
Selecting IP Precedence/DSCP
Figure 3-76. IP Precedence/DSCP Priority Status
CLI – The following example enables IP Precedence service on the switch.
Mapping IP Precedence
The Type of Service (ToS) octet in the IPv4 header includes three precedence
bits defining eight different priority levels ranging from highest priority for network
control packets to lowest priority for routine traffic. The default IP Precedence
values are mapped one-to-one to Class of Service values (i.e., Precedence value
0 maps to CoS value 0, and so forth). Bits 6 and 7 are used for network control,
and the other bits for various application types. ToS bits are defined in the
following table.
3-128