Administrator Guide

Enabling PVST+ Extend System ID............................................................................................................................. 692
PVST+ Sample Congurations.....................................................................................................................................693
39 Quality of Service (QoS)......................................................................................................................... 696
Implementation Information......................................................................................................................................... 698
Port-Based QoS Congurations.................................................................................................................................. 698
Setting dot1p Priorities for Incoming Trac.........................................................................................................698
Honoring dot1p Priorities on Ingress Trac..........................................................................................................699
Conguring Port-Based Rate Policing...................................................................................................................700
Conguring Port-Based Rate Shaping..................................................................................................................700
Policy-Based QoS Congurations.................................................................................................................................701
Classify Trac...........................................................................................................................................................701
Dot1p to Queue Mapping Requirement.................................................................................................................704
Create a QoS Policy.................................................................................................................................................705
DSCP Color Maps....................................................................................................................................................707
Create Policy Maps..................................................................................................................................................709
Enabling QoS Rate Adjustment.....................................................................................................................................713
Enabling Strict-Priority Queueing................................................................................................................................. 713
Queue Classication Requirements for PFC Functionality........................................................................................714
Support for marking dot1p value in L3 Input Qos Policy............................................................................................714
Weighted Random Early Detection.............................................................................................................................. 715
Creating WRED Proles...........................................................................................................................................715
Applying a WRED Prole to Trac.........................................................................................................................716
Displaying Default and Congured WRED Proles...............................................................................................716
Displaying WRED Drop Statistics............................................................................................................................716
Displaying egress–queue Statistics........................................................................................................................ 717
Pre-Calculating Available QoS CAM Space.................................................................................................................717
Specifying Policy-Based Rate Shaping in Packets Per Second................................................................................718
Conguring Policy-Based Rate Shaping...................................................................................................................... 719
Conguring Weights and ECN for WRED .................................................................................................................. 719
Global Service Pools With WRED and ECN Settings..........................................................................................720
Conguring WRED and ECN Attributes...................................................................................................................... 721
Guidelines for Conguring ECN for Classifying and Color-Marking Packets..........................................................721
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class..................................722
Classifying Incoming Packets Using ECN and Color-Marking............................................................................722
Sample conguration to mark non-ecn packets as “yellow” with single trac class......................................724
Applying Layer 2 Match Criteria on a Layer 3 Interface............................................................................................725
Managing Hardware Buer Statistics................................................................................................................... 726
Enabling Buer Statistics Tracking ............................................................................................................................. 726
40 Routing Information Protocol (RIP)......................................................................................................... 728
Protocol Overview......................................................................................................................................................... 728
RIPv1..........................................................................................................................................................................728
RIPv2.........................................................................................................................................................................728
Implementation Information..........................................................................................................................................729
Conguration Information.............................................................................................................................................729
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