Deployment Guide

Table Of Contents
Troubleshoot CAM Profiling......................................................................................................................................... 239
QoS CAM Region Limitation...................................................................................................................................239
Syslog Error When the Table is Full......................................................................................................................239
Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................240
Syslog Warning for Discrepancies Between Configured Extended Prefixes..............................................240
Unified Forwarding Table (UFT) Modes....................................................................................................................240
Configuring UFT Modes.......................................................................................................................................... 240
IPv6 CAM ACL Region................................................................................................................................................... 241
Important Points to Remember..............................................................................................................................241
Convert the IPv6 ACL CAM to Double-Wide......................................................................................................241
Sharing CAM space between IPv4 QoS and IPv6 ACLs..................................................................................242
Chapter 11: Control Plane Policing (CoPP)................................................................................ 243
Configure Control Plane Policing................................................................................................................................ 244
Configuring CoPP for Protocols............................................................................................................................245
Configuring CoPP for CPU Queues......................................................................................................................246
Protocol to CPU Queue Mapping..........................................................................................................................247
Configuring Protocol to CPU Queue Mapping...................................................................................................248
Displaying CoPP Configuration .............................................................................................................................249
Chapter 12: Data Center Bridging (DCB).................................................................................... 251
Ethernet Enhancements in Data Center Bridging....................................................................................................251
Priority-Based Flow Control................................................................................................................................... 252
Enhanced Transmission Selection.........................................................................................................................253
Data Center Bridging Exchange Protocol (DCBx)............................................................................................254
Data Center Bridging in a Traffic Flow................................................................................................................ 254
Enabling Data Center Bridging.................................................................................................................................... 255
DCB Maps and its Attributes................................................................................................................................. 255
Data Center Bridging: Default Configuration...........................................................................................................256
Configuring Priority-Based Flow Control.................................................................................................................. 256
Configuring Lossless Queues................................................................................................................................. 257
Configuring PFC in a DCB Map...................................................................................................................................258
Applying a DCB Map on a Port....................................................................................................................................259
Configuring PFC without a DCB Map........................................................................................................................260
Configuring PFC Asymmetric.......................................................................................................................................260
Priority-Based Flow Control Using Dynamic Buffer Method................................................................................ 261
Shared headroom for lossless or PFC packets........................................................................................................262
Configuring Shared Head Room Buffer............................................................................................................... 263
Viewing Shared Head Room Usage...................................................................................................................... 263
Monitoring Buffer Statistics for Tracking Purposes.........................................................................................264
Behavior of Tagged Packets........................................................................................................................................ 264
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................264
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................265
Configuration Example for DSCP and PFC Priorities.............................................................................................266
Using PFC to Manage Converged Ethernet Traffic...............................................................................................266
Generation of PFC for a Priority for Untagged Packets....................................................................................... 267
Configure Enhanced Transmission Selection........................................................................................................... 267
Creating an ETS Priority Group............................................................................................................................. 267
ETS Operation with DCBx...................................................................................................................................... 268
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