Administrator Guide

Queue-based Control Plane Policing......................................................................................................................241
CoPP Example................................................................................................................................................................243
Congure Control Plane Policing................................................................................................................................. 244
Conguring CoPP for Protocols.............................................................................................................................244
Examples of Conguring CoPP for Protocols...................................................................................................... 245
Conguring CoPP for CPU Queues...................................................................................................................... 246
Examples of Conguring CoPP for CPU Queues................................................................................................ 247
Displaying CoPP Conguration.............................................................................................................................. 248
Troubleshooting CoPP Operation................................................................................................................................. 251
Enabling CPU Trac Statistics............................................................................................................................... 251
Viewing CPU Trac Statistics................................................................................................................................ 251
Troubleshooting CPU Packet Loss........................................................................................................................ 252
Viewing Per-Protocol CoPP Counters.................................................................................................................. 253
Viewing Per-Queue CoPP Counters..................................................................................................................... 256
11 Data Center Bridging (DCB)......................................................................................................................257
Enabling Data Center Bridging..................................................................................................................................... 257
Ethernet Enhancements in Data Center Bridging..................................................................................................... 258
Priority-Based Flow Control................................................................................................................................... 259
Enhanced Transmission Selection..........................................................................................................................260
Data Center Bridging Exchange Protocol (DCBx)............................................................................................... 261
Data Center Bridging in a Trac Flow................................................................................................................... 261
QoS dot1p Trac Classication and Queue Assignment..........................................................................................262
SNMP Support for PFC and Buer Statistics Tracking............................................................................................262
DCB Maps and its Attributes........................................................................................................................................263
DCB Map: Conguration Procedure......................................................................................................................263
Important Points to Remember............................................................................................................................. 264
Applying a DCB Map on a Port.............................................................................................................................. 264
Conguring PFC without a DCB Map...................................................................................................................265
Conguring Lossless Queues................................................................................................................................. 265
Applying a DCB Map on a Line Card......................................................................................................................267
Data Center Bridging: Default Conguration..............................................................................................................267
Conguration Notes: PFC and ETS in a DCB Map....................................................................................................268
PFC Conguration Notes........................................................................................................................................268
ETS Conguration Notes........................................................................................................................................269
ETS Prerequisites and Restrictions....................................................................................................................... 269
Priority-Group Conguration Notes.......................................................................................................................270
Conguring Priority-Based Flow Control.................................................................................................................... 270
Conguring Lossless Queues.................................................................................................................................. 271
Conguring Enhanced Transmission Selection........................................................................................................... 271
Creating an ETS Priority Group..............................................................................................................................272
ETS Operation with DCBx...................................................................................................................................... 273
Congure a DCBx Operation........................................................................................................................................ 273
DCBx Operation....................................................................................................................................................... 273
DCBx Port Roles.......................................................................................................................................................274
DCB Conguration Exchange.................................................................................................................................275
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