Users Guide

Conguring an EdgePort................................................................................................................................................664
PVST+ in Multi-Vendor Networks.................................................................................................................................. 664
Enabling PVST+ Extend System ID................................................................................................................................ 665
PVST+ Sample Congurations....................................................................................................................................... 665
43 Quality of Service (QoS)........................................................................................... 668
Implementation Information........................................................................................................................................... 669
Port-Based QoS Congurations..................................................................................................................................... 670
Setting dot1p Priorities for Incoming Trac..............................................................................................................670
Honoring dot1p Priorities on Ingress Trac...............................................................................................................670
Conguring Port-Based Rate Policing....................................................................................................................... 671
Conguring Port-Based Rate Shaping.......................................................................................................................671
Policy-Based QoS Congurations...................................................................................................................................672
Classify Trac..........................................................................................................................................................672
Create a QoS Policy................................................................................................................................................. 676
Create Policy Maps...................................................................................................................................................677
DSCP Color Maps...........................................................................................................................................................681
Creating a DSCP Color Map..................................................................................................................................... 681
Displaying DSCP Color Maps................................................................................................................................... 682
Displaying a DSCP Color Policy Conguration ......................................................................................................... 682
Enabling QoS Rate Adjustment...................................................................................................................................... 683
Enabling Strict-Priority Queueing................................................................................................................................... 683
Weighted Random Early Detection.................................................................................................................................683
Creating WRED Proles........................................................................................................................................... 684
Applying a WRED Prole to Trac...........................................................................................................................685
Displaying Default and Congured WRED Proles....................................................................................................685
Displaying WRED Drop Statistics............................................................................................................................. 685
Displaying egress-queue Statistics........................................................................................................................... 686
Pre-Calculating Available QoS CAM Space.................................................................................................................... 686
Conguring Weights and ECN for WRED ...................................................................................................................... 687
Global Service Pools With WRED and ECN Settings................................................................................................688
Conguring WRED and ECN Attributes......................................................................................................................... 689
Guidelines for Conguring ECN for Classifying and Color-Marking Packets...................................................................690
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class............................................. 690
Classifying Incoming Packets Using ECN and Color-Marking...................................................................................690
Sample conguration to mark non-ecn packets as “yellow” with single trac class.................................................692
Applying Layer 2 Match Criteria on a Layer 3 Interface.................................................................................................. 693
Applying DSCP and VLAN Match Criteria on a Service Queue.......................................................................................694
Classifying Incoming Packets Using ECN and Color-Marking.........................................................................................695
Guidelines for Conguring ECN for Classifying and Color-Marking Packets...................................................................696
Sample conguration to mark non-ecn packets as “yellow” with Multiple trac class....................................................697
Sample conguration to mark non-ecn packets as “yellow” with single trac class....................................................... 697
Enabling Buer Statistics Tracking ................................................................................................................................698
44 Routing Information Protocol (RIP)............................................................................701
Protocol Overview.......................................................................................................................................................... 701
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