Concept Guide

Troubleshoot CAM Proling..........................................................................................................................................255
QoS CAM Region Limitation.................................................................................................................................. 255
11 Control Plane Policing (CoPP).................................................................................................................. 256
Congure Control Plane Policing..................................................................................................................................257
Conguring CoPP for Protocols............................................................................................................................ 258
Conguring CoPP for CPU Queues...................................................................................................................... 260
CoPP for OSPFv3 Packets..................................................................................................................................... 261
Conguring CoPP for OSPFv3.............................................................................................................................. 264
Displaying CoPP Conguration ............................................................................................................................. 264
12 Data Center Bridging (DCB)..................................................................................................................... 267
Ethernet Enhancements in Data Center Bridging......................................................................................................267
Priority-Based Flow Control................................................................................................................................... 268
Enhanced Transmission Selection..........................................................................................................................269
Data Center Bridging Exchange Protocol (DCBx)...............................................................................................270
Data Center Bridging in a Trac Flow................................................................................................................... 271
Enabling Data Center Bridging......................................................................................................................................271
DCB Maps and its Attributes..................................................................................................................................272
Data Center Bridging: Default Conguration..............................................................................................................273
Conguring Priority-Based Flow Control.................................................................................................................... 273
Conguring Lossless Queues..................................................................................................................................274
Conguring PFC in a DCB Map................................................................................................................................... 275
PFC Conguration Notes........................................................................................................................................275
PFC Prerequisites and Restrictions....................................................................................................................... 276
Applying a DCB Map on a Port.................................................................................................................................... 276
Conguring PFC without a DCB Map......................................................................................................................... 277
Conguring Lossless QueuesExample:.................................................................................................................. 277
Priority-Based Flow Control Using Dynamic Buer Method....................................................................................279
Pause and Resume of Trac..................................................................................................................................279
Buer Sizes for Lossless or PFC Packets.............................................................................................................279
Behavior of Tagged Packets.........................................................................................................................................280
Conguration Example for DSCP and PFC Priorities................................................................................................280
Using PFC to Manage Converged Ethernet Trac................................................................................................... 281
Congure Enhanced Transmission Selection.............................................................................................................. 281
ETS Prerequisites and Restrictions........................................................................................................................ 281
Creating an ETS Priority Group..............................................................................................................................282
ETS Operation with DCBx...................................................................................................................................... 283
Conguring Bandwidth Allocation for DCBx CIN.................................................................................................283
Conguring ETS in a DCB Map..............................................................................................................................284
Hierarchical Scheduling in ETS Output Policies.........................................................................................................285
Using ETS to Manage Converged Ethernet Trac...................................................................................................286
Applying DCB Policies in a Switch Stack.................................................................................................................... 286
Congure a DCBx Operation........................................................................................................................................286
DCBx Operation.......................................................................................................................................................286
DCBx Port Roles...................................................................................................................................................... 287
Contents
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