Concept Guide

RPM over VLT Scenarios........................................................................................................................................ 746
40 Private VLANs (PVLAN).......................................................................................................................... 748
Private VLAN Concepts................................................................................................................................................ 748
Using the Private VLAN Commands........................................................................................................................... 749
Conguration Task List..................................................................................................................................................750
Creating PVLAN ports............................................................................................................................................ 750
Creating a Primary VLAN........................................................................................................................................ 751
Creating a Community VLAN................................................................................................................................. 752
Creating an Isolated VLAN......................................................................................................................................752
Private VLAN Conguration Example......................................................................................................................... 754
Inspecting the Private VLAN Conguration............................................................................................................... 755
41 Per-VLAN Spanning Tree Plus (PVST+).................................................................................................... 757
Protocol Overview......................................................................................................................................................... 757
Implementation Information..........................................................................................................................................758
Congure Per-VLAN Spanning Tree Plus....................................................................................................................758
Related Conguration Tasks................................................................................................................................... 758
Enabling PVST+............................................................................................................................................................. 758
Disabling PVST+.............................................................................................................................................................759
Inuencing PVST+ Root Selection...............................................................................................................................759
Modifying Global PVST+ Parameters...........................................................................................................................761
Modifying Interface PVST+ Parameters..................................................................................................................... 762
Conguring an EdgePort.............................................................................................................................................. 763
PVST+ in Multi-Vendor Networks................................................................................................................................763
Enabling PVST+ Extend System ID............................................................................................................................. 763
PVST+ Sample Congurations..................................................................................................................................... 764
42 Quality of Service (QoS).......................................................................................................................... 767
Implementation Information..........................................................................................................................................769
Port-Based QoS Congurations.................................................................................................................................. 769
Setting dot1p Priorities for Incoming Trac......................................................................................................... 769
Honoring dot1p Priorities on Ingress Trac..........................................................................................................770
Conguring Port-Based Rate Policing....................................................................................................................771
Conguring Port-Based Rate Shaping...................................................................................................................771
Policy-Based QoS Congurations................................................................................................................................ 772
Classify Trac.......................................................................................................................................................... 772
Dot1p to Queue Mapping Requirement.................................................................................................................776
Create a QoS Policy.................................................................................................................................................776
DSCP Color Maps....................................................................................................................................................779
Create Policy Maps...................................................................................................................................................781
Enabling QoS Rate Adjustment....................................................................................................................................784
Enabling Strict-Priority Queueing................................................................................................................................ 785
Queue Classication Requirements for PFC Functionality....................................................................................... 785
Support for marking dot1p value in L3 Input Qos Policy...........................................................................................785
Weighted Random Early Detection..............................................................................................................................786
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