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Class of Service Configuration
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NXA-ENET24 - Software Management Guide
Mapping CoS Values to ACLs - Web
Click Priority, ACL CoS Priority. Select a port, select an ACL rule, specify a CoS priority, then click Add.
Mapping CoS Values to ACLs - CLI
This example assigns a CoS value of zero to packets matching rules within the specified ACL on port 1.
Changing Priorities Based on ACL Rules
You can change traffic priorities for frames matching the defined ACL rule. (This feature is commonly referred
to as ACL packet marking.) This switch can change the IEEE 802.1p priority, IP Precedence, or DSCP Priority
of IP frames; or change the IEEE 802.1p priority of Layer 2 frames. (This feature is commonly referred to as
ACL packet marking.) Use the no form to remove the ACL marker.
Command Usage
You must configure an ACL mask before you can change priorities based on a rule.
Traffic priorities may be included in the IEEE 802.1p priority tag. This tag is also incorporated as
part of the overall IEEE 802.1Q VLAN tag. The 802.1p priority may be set for either Layer 2 or IP
frames.
The IP frame header also includes priority bits in the Type of Service (ToS) octet. The Type of
Service octet may contain three bits for IP Precedence or six bits for Differentiated Services Code
Point (DSCP) service. Note that the IP frame header can include either the IP Precedence or DSCP
priority type.
The precedence for priority mapping by this switch is IP Precedence or DSCP Priority, and then
802.1p priority.
FIG. 172 Web - ACL CoS Priority
FIG. 173 CLI - ACL CoS Priority
Command Attributes
•Port: Port identifier.
• Name: Name of ACL.
•Type: Type of ACL (IP or MAC).
• Precedence: IP Precedence value. (Range: 0-7)
• DSCP: Differentiated Services Code Point value. (Range: 0-63)
• 802.1p Priority: Class of Service value in the IEEE 802.1p priority tag. (Range: 0-7; 7 is the highest priority)