Users Guide

Setting CAM Threshold and Silence Period..........................................................................................................243
Return to the Default CAM Conguration..................................................................................................................244
CAM Optimization......................................................................................................................................................... 244
Applications for CAM Proling..................................................................................................................................... 244
LAG HashingLAG Hashing Based on Bidirectional Flow..................................................................................... 244
Unied Forwarding Table (UFT) Modes......................................................................................................................245
Conguring UFT Modes..........................................................................................................................................245
10 Control Plane Policing (CoPP)..................................................................................................................247
CoPP Implementation....................................................................................................................................................247
Protocol-based Control Plane Policing..................................................................................................................247
Queue-based Control Plane Policing..................................................................................................................... 247
CoPP Example............................................................................................................................................................... 249
Congure Control Plane Policing................................................................................................................................. 250
Conguring CoPP for Protocols............................................................................................................................ 250
Examples of Conguring CoPP for Protocols.......................................................................................................251
Conguring CoPP for CPU Queues...................................................................................................................... 252
Examples of Conguring CoPP for CPU Queues................................................................................................253
Displaying CoPP Conguration.............................................................................................................................. 254
Troubleshooting CoPP Operation................................................................................................................................ 257
Enabling CPU Trac Statistics...............................................................................................................................257
Viewing CPU Trac Statistics................................................................................................................................257
Troubleshooting CPU Packet Loss........................................................................................................................ 258
Viewing Per-Protocol CoPP Counters.................................................................................................................. 259
Viewing Per-Queue CoPP Counters..................................................................................................................... 262
11 Data Center Bridging (DCB)......................................................................................................................263
Enabling Data Center Bridging..................................................................................................................................... 263
Ethernet Enhancements in Data Center Bridging..................................................................................................... 264
Priority-Based Flow Control................................................................................................................................... 265
Enhanced Transmission Selection..........................................................................................................................266
Data Center Bridging Exchange Protocol (DCBx)...............................................................................................267
Data Center Bridging in a Trac Flow...................................................................................................................267
QoS dot1p Trac Classication and Queue Assignment..........................................................................................268
SNMP Support for PFC and Buer Statistics Tracking............................................................................................268
DCB Maps and its Attributes........................................................................................................................................269
DCB Map: Conguration Procedure......................................................................................................................269
Important Points to Remember..............................................................................................................................270
Applying a DCB Map on a Port.............................................................................................................................. 270
Conguring PFC without a DCB Map....................................................................................................................271
Conguring Lossless Queues.................................................................................................................................. 271
Applying a DCB Map on a Line Card......................................................................................................................273
Data Center Bridging: Default Conguration..............................................................................................................273
Conguration Notes: PFC and ETS in a DCB Map.................................................................................................... 274
PFC Conguration Notes........................................................................................................................................274
ETS Conguration Notes........................................................................................................................................ 275
Contents
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