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Enabling PVST+ Extend System ID............................................................................................................................. 653
PVST+ Sample Congurations.....................................................................................................................................654
41 Quality of Service (QoS).......................................................................................................................... 657
Implementation Information......................................................................................................................................... 659
Port-Based QoS Congurations.................................................................................................................................. 659
Setting dot1p Priorities for Incoming Trac.........................................................................................................659
Honoring dot1p Priorities on Ingress Trac..........................................................................................................660
Conguring Port-Based Rate Policing................................................................................................................... 661
Conguring Port-Based Rate Shaping...................................................................................................................661
Policy-Based QoS Congurations................................................................................................................................662
Classify Trac..........................................................................................................................................................662
Create a QoS Policy................................................................................................................................................ 665
Create Policy Maps..................................................................................................................................................668
DSCP Color Maps...........................................................................................................................................................671
Creating a DSCP Color Map...................................................................................................................................672
Displaying DSCP Color Maps..................................................................................................................................673
Displaying a DSCP Color Policy Conguration .................................................................................................... 673
Enabling QoS Rate Adjustment.................................................................................................................................... 674
Enabling Strict-Priority Queueing.................................................................................................................................674
Weighted Random Early Detection..............................................................................................................................674
Creating WRED Proles..........................................................................................................................................675
Applying a WRED Prole to Trac........................................................................................................................ 676
Displaying Default and Congured WRED Proles.............................................................................................. 676
Displaying WRED Drop Statistics...........................................................................................................................676
Displaying egress–queue Statistics........................................................................................................................677
Pre-Calculating Available QoS CAM Space................................................................................................................ 677
Conguring Weights and ECN for WRED ..................................................................................................................678
Global Service Pools With WRED and ECN Settings..........................................................................................679
Conguring WRED and ECN Attributes..................................................................................................................... 680
Guidelines for Conguring ECN for Classifying and Color-Marking Packets.........................................................680
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class.................................. 681
Classifying Incoming Packets Using ECN and Color-Marking............................................................................ 681
Sample conguration to mark non-ecn packets as “yellow” with single trac class......................................683
Applying Layer 2 Match Criteria on a Layer 3 Interface............................................................................................684
Applying DSCP and VLAN Match Criteria on a Service Queue...............................................................................685
Classifying Incoming Packets Using ECN and Color-Marking................................................................................. 686
Guidelines for Conguring ECN for Classifying and Color-Marking Packets......................................................... 687
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class....................................... 688
Sample conguration to mark non-ecn packets as “yellow” with single trac class........................................... 688
42 Routing Information Protocol (RIP)......................................................................................................... 690
Protocol Overview.........................................................................................................................................................690
RIPv1......................................................................................................................................................................... 690
RIPv2.........................................................................................................................................................................690
Implementation Information.......................................................................................................................................... 691
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