Users Guide

Configure Control Plane Policing.................................................................................................................................... 202
Configuring CoPP for Protocols................................................................................................................................203
Configuring CoPP for CPU Queues..........................................................................................................................204
CoPP for OSPFv3 Packets........................................................................................................................................205
Configuring CoPP for OSPFv3..................................................................................................................................207
Displaying CoPP Configuration .................................................................................................................................208
Chapter 12: Data Center Bridging (DCB)........................................................................................210
Ethernet Enhancements in Data Center Bridging......................................................................................................... 210
Priority-Based Flow Control........................................................................................................................................ 211
Enhanced Transmission Selection..............................................................................................................................212
Data Center Bridging Exchange Protocol (DCBx)...................................................................................................213
Data Center Bridging in a Traffic Flow...................................................................................................................... 213
Enabling Data Center Bridging......................................................................................................................................... 213
DCB Maps and its Attributes......................................................................................................................................214
Data Center Bridging: Default Configuration................................................................................................................. 215
Configuring Priority-Based Flow Control........................................................................................................................215
Configuring Lossless Queues......................................................................................................................................216
Configuring PFC in a DCB Map........................................................................................................................................217
Applying a DCB Map on a Port.........................................................................................................................................218
Configuring PFC without a DCB Map............................................................................................................................. 218
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................................................220
Behavior of Tagged Packets............................................................................................................................................ 221
Configuration Example for DSCP and PFC Priorities....................................................................................................221
Using PFC to Manage Converged Ethernet Traffic..................................................................................................... 222
Configure Enhanced Transmission Selection.................................................................................................................222
ETS Prerequisites and Restrictions...........................................................................................................................222
Creating an ETS Priority Group................................................................................................................................. 222
ETS Operation with DCBx..........................................................................................................................................223
Configuring Bandwidth Allocation for DCBx CIN.................................................................................................... 224
Configuring ETS in a DCB Map................................................................................................................................. 224
Hierarchical Scheduling in ETS Output Policies............................................................................................................ 225
Using ETS to Manage Converged Ethernet Traffic..................................................................................................... 226
Applying DCB Policies in a Switch Stack........................................................................................................................226
Configure a DCBx Operation........................................................................................................................................... 226
DCBx Operation...........................................................................................................................................................226
DCBx Port Roles..........................................................................................................................................................227
DCB Configuration Exchange.................................................................................................................................... 228
Configuration Source Election................................................................................................................................... 228
Propagation of DCB Information...............................................................................................................................229
Auto-Detection and Manual Configuration of the DCBx Version......................................................................... 229
DCBx Example............................................................................................................................................................. 229
DCBx Prerequisites and Restrictions........................................................................................................................230
Configuring DCBx........................................................................................................................................................230
Verifying the DCB Configuration.....................................................................................................................................233
QoS dot1p Traffic Classification and Queue Assignment.............................................................................................242
Configuring the Dynamic Buffer Method.......................................................................................................................243
Sample DCB Configuration.............................................................................................................................................. 244
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