Connectivity Guide

2. Create a QoS type policy-map to mark it with a traffic class ID and assign it to the CoS flow.
OS10(config)# policy-map cos3-TC3
OS10(config-pmap-qos)# class cmap-cos3
OS10(config-pmap-c-qos)# set qos-group 3
Color traffic
You can select a traffic flow and mark it with a color. Color the traffic flow based on:
●
Metering. See Policing traffic.
● Default trust. See Trust-based classification.
● DSCP, ECN capable traffic (ECT), or non-ECT capable traffic.
Color traffic based on DSCP, ECT, or non-ECT
1. Create a QoS type class-map to match the traffic flow.
OS10(config)# class-map cmap-dscp-3-ect
OS10(config-cmap-qos)# match ip dscp 3 ecn 1
2. Create a QoS type policy-map to color the traffic flow.
OS10(config)# policy-map ect-color
OS10(config-pmap-qos)# class cmap-dscp-3-ect
OS10(config-pmap-c-qos)# set qos-group 3
OS10(config-pmap-c-qos)# set color yellow
Modify packet fields
You can modify the value of CoS or DSCP fields.
1. Create a QoS type class-map to match a traffic flow.
OS10(config)# class-map cmap-dscp-3
OS10(config-cmap-qos)# match ip dscp 3
2. Modify the policy-map to update the DSCP field.
OS10(config)# policy-map modify-dscp
OS10(config-pmap-qos)# class cmap-dscp-3
OS10(config-pmap-c-qos)# set qos-group 3
OS10(config-pmap-c-qos)# set dscp 10
Shaping traffic
You can shape the rate of egress traffic. When you enable rate shaping, the system buffers all traffic exceeding the specified
rate until the buffer memory is exhausted. Rate shaping uses all buffers reserved for an interface or queue and shares buffer
memory, until it reaches the configured threshold.
Configure traffic shaping
1. Enter the queuing type policy-map and configure a policy-map name in CONFIGURATION mode.
policy-map type queuing policy-map-name
2. Enter a class name to apply to the shape rate in POLICY-MAP-QUEUEING mode. A maximum of 32 characters.
class class-name
928
Quality of service