Users Guide

Enabling PVST+ Extend System ID..............................................................................................................................691
PVST+ Sample Congurations.....................................................................................................................................692
39 Quality of Service (QoS)......................................................................................................................... 695
Implementation Information..........................................................................................................................................697
Port-Based QoS Congurations...................................................................................................................................697
Setting dot1p Priorities for Incoming Trac......................................................................................................... 697
Honoring dot1p Priorities on Ingress Trac..........................................................................................................698
Conguring Port-Based Rate Policing.................................................................................................................. 699
Conguring Port-Based Rate Shaping..................................................................................................................699
Policy-Based QoS Congurations................................................................................................................................700
Classify Trac..........................................................................................................................................................700
Dot1p to Queue Mapping Requirement.................................................................................................................703
Create a QoS Policy.................................................................................................................................................704
DSCP Color Maps....................................................................................................................................................706
Create Policy Maps..................................................................................................................................................708
Enabling QoS Rate Adjustment.....................................................................................................................................712
Enabling Strict-Priority Queueing................................................................................................................................. 712
Queue Classication Requirements for PFC Functionality........................................................................................713
Support for marking dot1p value in L3 Input Qos Policy............................................................................................713
Weighted Random Early Detection...............................................................................................................................714
Creating WRED Proles...........................................................................................................................................714
Applying a WRED Prole to Trac.........................................................................................................................715
Displaying Default and Congured WRED Proles...............................................................................................715
Displaying WRED Drop Statistics............................................................................................................................715
Displaying egress–queue Statistics........................................................................................................................716
Pre-Calculating Available QoS CAM Space.................................................................................................................716
Specifying Policy-Based Rate Shaping in Packets Per Second................................................................................ 717
Conguring Policy-Based Rate Shaping...................................................................................................................... 718
Conguring Weights and ECN for WRED .................................................................................................................. 718
Global Service Pools With WRED and ECN Settings...........................................................................................719
Conguring WRED and ECN Attributes......................................................................................................................720
Guidelines for Conguring ECN for Classifying and Color-Marking Packets......................................................... 720
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class...................................721
Classifying Incoming Packets Using ECN and Color-Marking............................................................................ 721
Sample conguration to mark non-ecn packets as “yellow” with single trac class......................................723
Applying Layer 2 Match Criteria on a Layer 3 Interface............................................................................................724
Managing Hardware Buer Statistics................................................................................................................... 725
Enabling Buer Statistics Tracking .............................................................................................................................725
40 Routing Information Protocol (RIP)..........................................................................................................727
Protocol Overview......................................................................................................................................................... 727
RIPv1..........................................................................................................................................................................727
RIPv2......................................................................................................................................................................... 727
Implementation Information..........................................................................................................................................728
Conguration Information............................................................................................................................................. 728
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