Creating a Community VLAN.................................................................................................................................650Creating an Isolated VLAN..................................................................................................................................... 650Private VLAN Configuration Example......................................................................................................................... 652Inspecting the Private VLAN Configuration............................................................................................................... 65338 Per-VLAN Spanning Tree Plus (PVST+)................................................................................................... 655Protocol Overview.........................................................................................................................................................655Implementation Information......................................................................................................................................... 656Configure Per-VLAN Spanning Tree Plus................................................................................................................... 656Related Configuration Tasks...................................................................................................................................656Enabling PVST+............................................................................................................................................................. 656Disabling PVST+.............................................................................................................................................................657Influencing PVST+ Root Selection...............................................................................................................................657Modifying Global PVST+ Parameters..........................................................................................................................659Modifying Interface PVST+ Parameters..................................................................................................................... 660Configuring an EdgePort............................................................................................................................................... 661PVST+ in Multi-Vendor Networks................................................................................................................................ 661Enabling PVST+ Extend System ID.............................................................................................................................. 661PVST+ Sample Configurations.....................................................................................................................................66239 Quality of Service (QoS)......................................................................................................................... 665Implementation Information..........................................................................................................................................667Port-Based QoS Configurations.................................................................................................................................. 667Setting dot1p Priorities for Incoming Traffic......................................................................................................... 667Honoring dot1p Priorities on Ingress Traffic..........................................................................................................668Configuring Port-Based Rate Policing.................................................................................................................. 669Configuring Port-Based Rate Shaping..................................................................................................................669Policy-Based QoS Configurations................................................................................................................................670Classify Traffic.......................................................................................................................................................... 670Dot1p to Queue Mapping Requirement.................................................................................................................673Create a QoS Policy................................................................................................................................................. 674DSCP Color Maps....................................................................................................................................................676Create Policy Maps..................................................................................................................................................678Enabling QoS Rate Adjustment....................................................................................................................................682Enabling Strict-Priority Queueing................................................................................................................................ 682Queue Classification Requirements for PFC Functionality.......................................................................................683Support for marking dot1p value in L3 Input Qos Policy...........................................................................................683Weighted Random Early Detection..............................................................................................................................684Creating WRED Profiles..........................................................................................................................................684Applying a WRED Profile to Traffic........................................................................................................................ 685Displaying Default and Configured WRED Profiles..............................................................................................685Displaying WRED Drop Statistics...........................................................................................................................685Displaying egress–queue Statistics....................................................................................................................... 686Pre-Calculating Available QoS CAM Space................................................................................................................686Specifying Policy-Based Rate Shaping in Packets Per Second............................................................................... 687Configuring Policy-Based Rate Shaping..................................................................................................................... 68822 Contents
