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Table Of Contents
Encapsulated Remote Port Monitoring...................................................................................................................... 661
ERPM Behavior on a typical Dell EMC Networking OS ....................................................................................... 663
Port Monitoring on VLT................................................................................................................................................ 664
Chapter 39: Per-VLAN Spanning Tree Plus (PVST+)..................................................................667
Protocol Overview.......................................................................................................................................................... 667
Implementation Information......................................................................................................................................... 668
Configure Per-VLAN Spanning Tree Plus................................................................................................................. 669
Enabling PVST+.............................................................................................................................................................. 669
Disabling PVST+..............................................................................................................................................................669
Influencing PVST+ Root Selection..............................................................................................................................670
Modifying Global PVST+ Parameters......................................................................................................................... 671
Modifying Interface PVST+ Parameters.................................................................................................................... 671
Configuring an EdgePort...............................................................................................................................................672
PVST+ in Multi-Vendor Networks.............................................................................................................................. 673
Enabling PVST+ Extend System ID............................................................................................................................ 673
PVST+ Sample Configurations.................................................................................................................................... 674
Chapter 40: Quality of Service (QoS)........................................................................................ 676
Implementation Information..........................................................................................................................................678
Port-Based QoS Configurations..................................................................................................................................678
Setting dot1p Priorities for Incoming Traffic...................................................................................................... 678
Honoring dot1p Priorities on Ingress Traffic.......................................................................................................679
Configuring Port-Based Rate Policing................................................................................................................. 679
Configuring Port-Based Rate Shaping.................................................................................................................679
Policy-Based QoS Configurations...............................................................................................................................680
Classify Traffic............................................................................................................................................................681
Dot1p to Queue Mapping Requirement................................................................................................................683
Create a QoS Policy................................................................................................................................................. 684
DSCP Color Maps..................................................................................................................................................... 686
Create Policy Maps...................................................................................................................................................688
Enabling QoS Rate Adjustment.................................................................................................................................... 691
Enabling Strict-Priority Queueing............................................................................................................................... 692
Queue Classification Requirements for PFC Functionality...................................................................................692
Support for marking dot1p value in L3 Input Qos Policy....................................................................................... 692
Weighted Random Early Detection.............................................................................................................................693
Creating WRED Profiles.......................................................................................................................................... 694
Applying a WRED Profile to Traffic...................................................................................................................... 694
Displaying Default and Configured WRED Profiles........................................................................................... 694
Displaying WRED Drop Statistics.......................................................................................................................... 694
Displaying egressqueue Statistics...................................................................................................................... 695
Pre-Calculating Available QoS CAM Space..............................................................................................................695
Specifying Policy-Based Rate Shaping in Packets Per Second.......................................................................... 696
Configuring Policy-Based Rate Shaping....................................................................................................................697
Configuring Weights and ECN for WRED ................................................................................................................697
Configuring WRED and ECN Attributes.................................................................................................................... 698
Guidelines for Configuring ECN for Classifying and Color-Marking Packets...................................................699
Sample configuration to mark non-ecn packets as yellow with Multiple traffic class..........................700
Classifying Incoming Packets Using ECN and Color-Marking........................................................................700
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