Setup Guide

PVST+ Sample Congurations.....................................................................................................................................708
43 Quality of Service (QoS)...........................................................................................................................711
Implementation Information...........................................................................................................................................713
Port-Based QoS Congurations................................................................................................................................... 713
Setting dot1p Priorities for Incoming Trac..........................................................................................................713
Honoring dot1p Priorities on Ingress Trac...........................................................................................................714
Conguring Port-Based Rate Policing................................................................................................................... 715
Conguring Port-Based Rate Shaping...................................................................................................................715
Policy-Based QoS Congurations.................................................................................................................................716
Classify Trac...........................................................................................................................................................716
Create a QoS Policy................................................................................................................................................. 719
Create Policy Maps..................................................................................................................................................722
DSCP Color Maps..........................................................................................................................................................725
Creating a DSCP Color Map...................................................................................................................................725
Displaying DSCP Color Maps................................................................................................................................. 726
Displaying a DSCP Color Policy Conguration .....................................................................................................727
Enabling QoS Rate Adjustment.................................................................................................................................... 727
Enabling Strict-Priority Queueing................................................................................................................................ 728
Weighted Random Early Detection..............................................................................................................................728
Creating WRED Proles..........................................................................................................................................729
Applying a WRED Prole to Trac........................................................................................................................ 730
Displaying Default and Congured WRED Proles.............................................................................................. 730
Displaying WRED Drop Statistics...........................................................................................................................730
Displaying egress–queue Statistics........................................................................................................................ 731
Pre-Calculating Available QoS CAM Space.................................................................................................................731
Conguring Weights and ECN for WRED ..................................................................................................................732
Global Service Pools With WRED and ECN Settings..........................................................................................733
Conguring WRED and ECN Attributes......................................................................................................................734
Guidelines for Conguring ECN for Classifying and Color-Marking Packets......................................................... 734
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class..................................735
Classifying Incoming Packets Using ECN and Color-Marking............................................................................735
Sample conguration to mark non-ecn packets as “yellow” with single trac class......................................737
Applying Layer 2 Match Criteria on a Layer 3 Interface............................................................................................738
Applying DSCP and VLAN Match Criteria on a Service Queue...............................................................................739
Classifying Incoming Packets Using ECN and Color-Marking..................................................................................740
Guidelines for Conguring ECN for Classifying and Color-Marking Packets.......................................................... 741
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class........................................742
Sample conguration to mark non-ecn packets as “yellow” with single trac class............................................742
44 Routing Information Protocol (RIP)..........................................................................................................744
Protocol Overview......................................................................................................................................................... 744
RIPv1..........................................................................................................................................................................744
RIPv2......................................................................................................................................................................... 744
Implementation Information..........................................................................................................................................745
Conguration Information............................................................................................................................................. 745
Contents
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