Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 741
Create Policy Maps, Creating Input Policy Maps
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Queue 5 6 7 Default Bandwidth Percentage for 4- Queue System - Default Bandwidth Percentage for 8- Queue System 10% 25% 50% NOTE: The system supports 4 data queues. When you assign a percentage to one queue, note that this change also affects the amount of bandwidth that is allocated to other queues. Therefore, whenever you are allocating bandwidth to one queue, Dell EMC Networking recommends evaluating your bandwidth requirements for all other queues as well. • Assign each queue a bandwidth percentage ranging from 1 to 100%, in increments of 1%. bandwidth-percentage Specifying WRED Drop Precedence You can configure the WRED drop precedence in an output QoS policy. • Specify a WRED profile to yellow and/or green traffic. QOS-POLICY-OUT mode wred For more information, refer to Applying a WRED Profile to Traffic. Create Policy Maps There are two types of policy maps: input and output. Creating Input Policy Maps There are two types of input policy-maps: Layer 3 and Layer 2. 1 Create a Layer 3 input policy map. CONFIGURATION mode policy-map-input Create a Layer 2 input policy map by specifying the keyword layer2 with the policy-map-input command. 2 After you create an input policy map, do one or more of the following: Applying a Class-Map or Input QoS Policy to a Queue Applying an Input QoS Policy to an Input Policy Map Honoring DSCP Values on Ingress Packets Honoring dot1p Values on Ingress Packets 3 Apply the input policy map to an interface. Quality of Service (QoS) 741
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