Reference Guide

Modifying Global PVST+ Parameters............................................................................................... 691

Modifying Interface PVST+ Parameters...........................................................................................692

Configuring an EdgePort..................................................................................................................693

PVST+ in Multi-Vendor Networks....................................................................................................694

Enabling PVST+ Extend System ID.................................................................................................. 694

PVST+ Sample Configurations.........................................................................................................695

37 Quality of Service (QoS)....................................................................................697

Implementation Information............................................................................................................699

Port-Based QoS Configurations...................................................................................................... 699

Setting dot1p Priorities for Incoming Traffic............................................................................. 700

Honoring dot1p Priorities on Ingress Traffic..............................................................................700

Configuring Port-Based Rate Policing....................................................................................... 701

Configuring Port-Based Rate Shaping....................................................................................... 701

Policy-Based QoS Configurations................................................................................................... 702

Classify Traffic............................................................................................................................. 703

Dot1p to Queue Mapping Requirement.................................................................................... 706

Create a QoS Policy.................................................................................................................... 707

DSCP Color Maps....................................................................................................................... 709

Create Policy Maps......................................................................................................................712

Enabling QoS Rate Adjustment.........................................................................................................716

Enabling Strict-Priority Queueing.....................................................................................................716

Queue Classification Requirements for PFC Functionality..............................................................717

Support for marking dot1p value in L3 Input Qos Policy.................................................................717

Weighted Random Early Detection.................................................................................................. 718

Creating WRED Profiles...............................................................................................................719

Applying a WRED Profile to Traffic............................................................................................. 719

Displaying Default and Configured WRED Profiles................................................................... 720

Displaying WRED Drop Statistics................................................................................................720

Pre-Calculating Available QoS CAM Space..................................................................................... 720

Specifying Policy-Based Rate Shaping in Packets Per Second....................................................... 721

Configuring Policy-Based Rate Shaping.......................................................................................... 722

Configuring Weights and ECN for WRED ....................................................................................... 722

Global Service Pools With WRED and ECN Settings..................................................................723

Configuring WRED and ECN Attributes............................................................................................725

Guidelines for Configuring ECN for Classifying and Color-Marking Packets................................ 726

Sample configuration to mark non-ecn packets as “yellow” with Multiple traffic class.......... 727

Classifying Incoming Packets Using ECN and Color-Marking..................................................727

Sample configuration to mark non-ecn packets as “yellow” with single traffic class..............729

Applying Layer 2 Match Criteria on a Layer 3 Interface...................................................................731

Managing Hardware Buffer Statistics..........................................................................................731

Enabling Buffer Statistics Tracking .................................................................................................. 732