Administrator Guide

Implementation Information.......................................................................................... 711
Configure Per-VLAN Spanning Tree Plus.......................................................................... 711
Related Configuration Tasks...........................................................................................711
Enabling PVST+.......................................................................................................................712
Disabling PVST+......................................................................................................................712
Influencing PVST+ Root Selection................................................................................713
Modifying Global PVST+ Parameters................................................................................. 714
Modifying Interface PVST+ Parameters............................................................................. 715
Configuring an EdgePort...................................................................................................... 716
PVST+ in Multi-Vendor Networks....................................................................................... 717
Enabling PVST+ Extend System ID......................................................................................717
PVST+ Sample Configurations.............................................................................................718
Enable BPDU Filtering globally............................................................................................720
45 Quality of Service (QoS)....................................................................................................722
Implementation Information............................................................................................... 724
Port-Based QoS Configurations......................................................................................... 724
Setting dot1p Priorities for Incoming Traffic.............................................................. 724
Honoring dot1p Priorities on Ingress Traffic...............................................................725
Configuring Port-Based Rate Policing.........................................................................726
Configuring Port-Based Rate Shaping.........................................................................726
Guidelines for Configuring ECN for Classifying and Color-Marking Packets........... 727
Sample configuration to mark non-ecn packets as “yellow” with Multiple
traffic class......................................................................................................................... 728
Classifying Incoming Packets Using ECN and Color-Marking............................... 728
Sample configuration to mark non-ecn packets as “yellow” with single
traffic class.........................................................................................................................730
Policy-Based QoS Configurations......................................................................................732
DSCP Color Maps............................................................................................................. 732
Classify Traffic................................................................................................................... 735
Create a QoS Policy.........................................................................................................739
Create Policy Maps.......................................................................................................... 742
Enabling QoS Rate Adjustment........................................................................................... 747
Enabling Strict-Priority Queueing.......................................................................................748
Weighted Random Early Detection....................................................................................748
Creating WRED Profiles.................................................................................................. 749
Applying a WRED Profile to Traffic............................................................................... 750
Displaying Default and Configured WRED Profiles...................................................750
Displaying WRED Drop Statistics...................................................................................750
Displaying egress-queue Statistics................................................................................751
Classifying Layer 2 Traffic on Layer 3 Interfaces .......................................................751
Configuration Guide
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