Configuring Ip Precedence Classification - Cisco Nexus 7000 Series Configuration Manual

Configuring Classification
Note Tunneled IP packets are matched unless the tunneling protocol is also IP, and the match applies to the outer
IP header and not the encapsulated IP header.
Procedure
Step 1
Step 2
Step 3
Step 4
Step 5
Example
This example shows how to display the DSCP class-map configuration:
switch# show class-map class_dscp

Configuring IP Precedence Classification

You can classify traffic based on the precedence value in the type of service (ToS) byte field of the IP header.
The table below shows the precedence values.
Table 12: Precedence Values
Value
0-7
critical
flash
Command or Action
switch# configure terminal
switch(config)# class-map [type qos]
[match-any | match-all] class-map-name
switch(config-cmap-qos)# match [not] dscp
dscp-list
switch(config-cmap-qos)# exit
(Optional) switch(config)# copy
running-config startup-config
Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide
Configuring IP Precedence Classification
Purpose
Enters global configuration mode.
Creates or accesses the class map named
class-map-name and enters class-map mode.
The class map name can contain alphabetic,
hyphen, or underscore characters, is case
sensitive, and can be up to 40 characters.
Configures the traffic class by matching packets
based on dscp-values. The standard DSCP
values are shown in the table above.
Use the not keyword to match on values that
do not match the specified range.
Exits global class-map queuing mode, and
enters configuration mode.
Saves this configuration change.
List of Precedence Values
IP precedence value
Critical precedence (5)
Flash precedence (3)
35