Concept Guide

Table Of Contents
Upgrading the PoE Controller................................................................................................................................ 762
Suspending Power Delivery on the Port Extender............................................................................................762
Restoring Power Delivery on the Port Extender............................................................................................... 762
Monitor the Power Budget..................................................................................................................................... 763
Displaying Power Allocated to Power Devices...................................................................................................765
Displaying Power Consumption on the Port Extender.....................................................................................766
Chapter 45: Private VLANs (PVLAN)..........................................................................................767
Private VLAN Concepts.................................................................................................................................................767
Using the Private VLAN Commands...........................................................................................................................768
Configuration Task List..................................................................................................................................................769
Creating PVLAN ports............................................................................................................................................. 769
Creating a Primary VLAN........................................................................................................................................ 769
Creating a Community VLAN..................................................................................................................................770
Creating an Isolated VLAN.......................................................................................................................................771
Private VLAN Configuration Example........................................................................................................................ 772
Inspecting the Private VLAN Configuration..............................................................................................................773
Chapter 46: Quality of Service (QoS)........................................................................................ 775
Implementation Information..........................................................................................................................................776
Port-Based QoS Configurations.................................................................................................................................. 776
Setting dot1p Priorities for Incoming Traffic...................................................................................................... 776
Honoring dot1p Priorities on Ingress Traffic....................................................................................................... 777
Configuring Port-Based Rate Policing..................................................................................................................777
Configuring Port-Based Rate Shaping................................................................................................................. 777
Policy-Based QoS Configurations............................................................................................................................... 778
Classify Traffic........................................................................................................................................................... 778
Create a QoS Policy..................................................................................................................................................782
Create Policy Maps...................................................................................................................................................785
DSCP Color Maps........................................................................................................................................................... 788
Creating a DSCP Color Map.............................................................................................................................. 788
Displaying DSCP Color Maps..................................................................................................................................789
Displaying a DSCP Color Policy Configuration ..................................................................................................789
Enabling QoS Rate Adjustment................................................................................................................................... 790
Enabling Strict-Priority Queueing............................................................................................................................... 790
Weighted Random Early Detection..............................................................................................................................791
Creating WRED Profiles...........................................................................................................................................792
Applying a WRED Profile to Traffic.......................................................................................................................792
Displaying Default and Configured WRED Profiles........................................................................................... 792
Displaying WRED Drop Statistics.......................................................................................................................... 792
Displaying egress-queue Statistics....................................................................................................................... 793
Explicit Congestion Notification.................................................................................................................................. 793
ECN Packet Classification.......................................................................................................................................794
Example: Color-marking non-ECN Packets in One Traffic Class.................................................................. 794
Example: Color-marking non-ECN Packets in Different Traffic Classes.....................................................795
Using A Configurable Weight for WRED and ECN..................................................................................................796
Benefits of Using a Configurable Weight for WRED with ECN..................................................................... 796
Setting Average Queue Size using a Weight......................................................................................................796
Global Service-Pools for WRED with ECN......................................................................................................... 796
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