Concept Guide

Conguration Task List..................................................................................................................................................769
Creating PVLAN ports............................................................................................................................................ 769
Creating a Primary VLAN........................................................................................................................................770
Creating a Community VLAN..................................................................................................................................771
Creating an Isolated VLAN...................................................................................................................................... 771
Private VLAN Conguration Example..........................................................................................................................773
Inspecting the Private VLAN Conguration................................................................................................................774
43 Per-VLAN Spanning Tree Plus (PVST+)....................................................................................................776
Protocol Overview......................................................................................................................................................... 776
Implementation Information.......................................................................................................................................... 777
Congure Per-VLAN Spanning Tree Plus....................................................................................................................777
Related Conguration Tasks....................................................................................................................................777
Enabling PVST+..............................................................................................................................................................777
Disabling PVST+............................................................................................................................................................. 778
Inuencing PVST+ Root Selection............................................................................................................................... 778
Modifying Global PVST+ Parameters.......................................................................................................................... 780
Modifying Interface PVST+ Parameters...................................................................................................................... 781
Conguring an EdgePort...............................................................................................................................................782
PVST+ in Multi-Vendor Networks................................................................................................................................782
Enabling PVST+ Extend System ID..............................................................................................................................782
PVST+ Sample Congurations..................................................................................................................................... 783
44 Quality of Service (QoS)..........................................................................................................................786
Implementation Information..........................................................................................................................................788
Port-Based QoS Congurations...................................................................................................................................788
Setting dot1p Priorities for Incoming Trac......................................................................................................... 788
Honoring dot1p Priorities on Ingress Trac..........................................................................................................789
Conguring Port-Based Rate Policing...................................................................................................................790
Conguring Port-Based Rate Shaping..................................................................................................................790
Policy-Based QoS Congurations.................................................................................................................................791
Classify Trac...........................................................................................................................................................791
Create a QoS Policy.................................................................................................................................................795
Create Policy Maps..................................................................................................................................................797
DSCP Color Maps.......................................................................................................................................................... 801
Creating a DSCP Color Map................................................................................................................................... 801
Displaying DSCP Color Maps................................................................................................................................. 802
Displaying a DSCP Color Policy Conguration ....................................................................................................802
Enabling QoS Rate Adjustment....................................................................................................................................803
Enabling Strict-Priority Queueing................................................................................................................................ 803
Weighted Random Early Detection............................................................................................................................. 804
Creating WRED Proles..........................................................................................................................................805
Applying a WRED Prole to Trac........................................................................................................................805
Displaying Default and Congured WRED Proles..............................................................................................805
Displaying WRED Drop Statistics...........................................................................................................................806
Displaying egress–queue Statistics.......................................................................................................................806
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