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Setting a DSCP Value for Egress Packets
You can set the DSCP value for egress packets based on ingress QOS classification.
The 6 bits that are used for DSCP are also used to identify the queue in which traffic is buffered.
Example of Setting a DSCP Value for Egress Packets
Dell#config
Dell(conf)#qos-policy-input my-input-qos-policy
Dell(conf-qos-policy-in)#set ip-dscp 34
Dell(conf-qos-policy-in)#show config
!
qos-policy-input my-input-qos-policy
set ip-dscp 34
Dell(conf-qos-policy-in)#end
Dell#
Setting a dot1p Value for Egress Packets
To set a dot1p value for egress packets, use the following command.
• Set a dot1p value for egress packets.
QOS-POLICY-IN mode
set mac-dot1p
Creating an Output QoS Policy
To create an output QoS policy, use the following commands.
1. Create an output QoS policy.
CONFIGURATION mode
qos-policy-output
2. After you configure an output QoS policy, do one or more of the following:
Configuring Policy-Based Rate Shaping
Allocating Bandwidth to Queue
Configure a Scheduler to Queue
Specifying WRED Drop Precedence
Configuring Policy-Based Rate Shaping
To configure policy-based rate shaping, use the following command.
• Configure rate shape egress traffic.
QOS-POLICY-OUT mode
rate-shape
Quality of Service (QoS)
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