Concept Guide

42 Port Monitoring....................................................................................................................................... 629
Supported Modes..........................................................................................................................................................629
Conguring Port Monitoring........................................................................................................................................ 629
Important Points to Remember................................................................................................................................... 630
Port Monitoring...............................................................................................................................................................631
Remote Port Mirroring...................................................................................................................................................631
Remote Port Mirroring Example............................................................................................................................ 632
Conguring Remote Port Mirroring.......................................................................................................................632
Displaying Remote-Port Mirroring Congurations...............................................................................................634
Conguration Procedure for Remote Port Mirroring.......................................................................................... 634
Encapsulated Remote Port Monitoring....................................................................................................................... 641
43 Private VLANs (PVLAN).......................................................................................................................... 644
Private VLAN Concepts................................................................................................................................................644
Using the Private VLAN Commands.....................................................................................................................645
Conguration Task List............................................................................................................................................646
Private VLAN Conguration Example...................................................................................................................650
44 Per-VLAN Spanning Tree Plus (PVST+)................................................................................................... 653
Protocol Overview.........................................................................................................................................................653
Implementation Information................................................................................................................................... 654
Congure Per-VLAN Spanning Tree Plus................................................................................................................... 654
Related Conguration Tasks...................................................................................................................................654
Enabling PVST+............................................................................................................................................................. 654
Disabling PVST+............................................................................................................................................................ 655
Inuencing PVST+ Root Selection........................................................................................................................ 655
Modifying Global PVST+ Parameters..........................................................................................................................657
Modifying Interface PVST+ Parameters.....................................................................................................................658
Conguring an EdgePort.............................................................................................................................................. 659
PVST+ in Multi-Vendor Networks............................................................................................................................... 659
Enabling PVST+ Extend System ID............................................................................................................................. 659
PVST+ Sample Congurations.....................................................................................................................................660
Enable BPDU Filtering globally.....................................................................................................................................662
45 Quality of Service (QoS)......................................................................................................................... 663
Implementation Information......................................................................................................................................... 665
Port-Based QoS Congurations.................................................................................................................................. 665
Setting dot1p Priorities for Incoming Trac.........................................................................................................665
Honoring dot1p Priorities on Ingress Trac..........................................................................................................666
Conguring Port-Based Rate Policing...................................................................................................................667
Conguring Port-Based Rate Shaping.................................................................................................................. 667
Guidelines for Conguring ECN for Classifying and Color-Marking Packets......................................................... 667
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class................................. 668
Classifying Incoming Packets Using ECN and Color-Marking........................................................................... 668
Sample conguration to mark non-ecn packets as “yellow” with single trac class......................................670
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Contents