Users Guide

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
% Info: To set the specified DSCP value 34 (100-010 b) the QoS policy must be mapped to queue
4 (100 b).
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 congure an output QoS policy, do one or more of the following:
Strict-Priority Queuing
Conguring Policy-Based Rate Shaping
Allocating Bandwidth to Queue
Specifying WRED Drop Precedence
Strict-Priority Queuing
You can congure strict-priority queueing in an output QoS policy. Strict-priority means that the system de-queues all packets from the
assigned queue before servicing any other queues.
Strict-priority queueing is performed using the Scheduler Strict feature. When scheduler strict is applied to multiple queues, the higher
queue number takes precedence. For more information, see Enabling Strict-Priority Queueing.
NOTE
: Strict priority on a a global level is not supported.
Conguring Policy-Based Rate Shaping
To congure policy-based rate-shaping, use the rate-shape command.
• Congure rate-shaping on egress trac.
QOS-POLICY-OUT mode
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Quality of Service (QoS)