Install Guide

Table Of Contents
Configuring Policy-Based Rate Shaping
Configuring Weights and ECN for WRED
Configuring WRED and ECN Attributes
Guidelines for Configuring ECN for Classifying and Color-Marking Packets
Applying Layer 2 Match Criteria on a Layer 3 Interface
Enabling Buffer Statistics Tracking
Implementation Information
The Dell EMC Networking QoS implementation complies with IEEE 802.1p User Priority Bits for QoS Indication.
It also implements these Internet Engineering Task Force (IETF) documents:
RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 Headers
RFC 2475, An Architecture for Differentiated Services
RFC 2597, Assured Forwarding PHB Group
RFC 2598, An Expedited Forwarding PHB
You cannot configure port-based and policy-based QoS on the same interface.
Port-Based QoS Configurations
You can configure the following QoS features on an interface.
NOTE:
You cannot simultaneously use egress rate shaping and ingress rate policing on the same virtual local area network
(VLAN).
Setting dot1p Priorities for Incoming Traffic
Honoring dot1p Priorities on Ingress Traffic
Configuring Port-Based Rate Policing
Configuring Port-Based Rate Shaping
Setting dot1p Priorities for Incoming Traffic
Dell EMC Networking OS places traffic marked with a priority in a queue based on the following table.
If you set a dot1p priority for a port-channel, all port-channel members are configured with the same value. You cannot assign a
dot1p value to an individual interface in a port-channel.
Change the priority of incoming traffic on the interface.
dot1p-priority
Honoring dot1p Priorities on Ingress Traffic
By default, Dell EMC Networking OS does not honor dot1p priorities on ingress traffic.
You can configure this feature on physical interfaces and port-channels, but you cannot configure it on individual interfaces in a
port channel.
You can configure service-class dynamic dot1p from CONFIGURATION mode, which applies the configuration to all interfaces.
A CONFIGURATION mode service-class dynamic dot1p entry supersedes any INTERFACE entries. For more information, refer to
Mapping dot1p Values to Service Queues.
NOTE: You cannot configure service-policy input and service-class dynamic dot1p on the same interface.
Honor dot1p priorities on ingress traffic.
INTERFACE mode
service-class dynamic dot1p
Quality of Service (QoS)
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