Selecting ip precedence/dscp priority, Mapping ip precedence – SMC Networks SMC TigerStack 1000 SMC8748M User Manual
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Selecting IP Precedence/DSCP 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.
Figure 3-87 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
Console(config)#map ip precedence
Console(config)#