White Papers

Table Of Contents
View CAM Usage............................................................................................................................................................ 235
Configuring CAM Threshold and Silence Period..................................................................................................... 235
CAM Optimization...........................................................................................................................................................236
Troubleshoot CAM Profiling......................................................................................................................................... 237
QoS CAM Region Limitation................................................................................................................................... 237
Chapter 11: Control Plane Policing (CoPP)................................................................................ 238
Configure Control Plane Policing................................................................................................................................ 239
Configuring CoPP for Protocols............................................................................................................................240
Configuring CoPP for CPU Queues.......................................................................................................................241
CoPP for OSPFv3 Packets.....................................................................................................................................242
Configuring CoPP for OSPFv3.............................................................................................................................. 245
Displaying CoPP Configuration .............................................................................................................................246
Chapter 12: Data Center Bridging (DCB)....................................................................................248
Ethernet Enhancements in Data Center Bridging...................................................................................................248
Priority-Based Flow Control................................................................................................................................... 249
Enhanced Transmission Selection.........................................................................................................................250
Data Center Bridging Exchange Protocol (DCBx).............................................................................................251
Data Center Bridging in a Traffic Flow................................................................................................................ 252
Enabling Data Center Bridging.....................................................................................................................................252
DCB Maps and its Attributes................................................................................................................................. 253
QoS dot1p Traffic Classification and Queue Assignment......................................................................................253
Data Center Bridging: Default Configuration........................................................................................................... 254
Configuring Priority-Based Flow Control.................................................................................................................. 255
Configuring Lossless Queues................................................................................................................................. 255
Configuring PFC in a DCB Map...................................................................................................................................256
Applying a DCB Map on a Port....................................................................................................................................258
Priority-Based Flow Control Using Dynamic Buffer Method............................................................................... 258
Configuring PFC without a DCB Map........................................................................................................................259
Behavior of Tagged Packets.........................................................................................................................................261
Configuration Example for DSCP and PFC Priorities..............................................................................................261
Using PFC to Manage Converged Ethernet Traffic...............................................................................................262
Configure Enhanced Transmission Selection........................................................................................................... 262
ETS Prerequisites and Restrictions...................................................................................................................... 263
Creating an ETS Priority Group............................................................................................................................. 263
ETS Operation with DCBx.......................................................................................................................................264
Configuring Bandwidth Allocation for DCBx CIN.............................................................................................. 264
Configuring ETS in a DCB Map............................................................................................................................. 265
Hierarchical Scheduling in ETS Output Policies................................................................................................ 266
Using ETS to Manage Converged Ethernet Traffic......................................................................................... 266
Applying DCB Policies in a Switch Stack...................................................................................................................267
Configure a DCBx Operation........................................................................................................................................267
DCBx Operation.........................................................................................................................................................267
DCBx Port Roles........................................................................................................................................................267
DCB Configuration Exchange................................................................................................................................ 269
Configuration Source Election............................................................................................................................... 269
Propagation of DCB Information...........................................................................................................................269
Auto-Detection and Manual Configuration of the DCBx Version..................................................................270
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