Service Manual

Troubleshoot CAM Profiling..........................................................................................................................................241
QoS CAM Region Limitation....................................................................................................................................241
Syslog Error When the Table is Full.......................................................................................................................241
Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................242
Syslog Warning for Discrepancies Between Configured Extended Prefixes.............................................. 242
Unified Forwarding Table (UFT) Modes....................................................................................................................242
Configuring UFT Modes...........................................................................................................................................242
IPv6 CAM ACL Region...................................................................................................................................................243
Important Points to Remember............................................................................................................................. 243
Convert the IPv6 ACL CAM to Double-Wide..................................................................................................... 243
Sharing CAM space between IPv4 QoS and IPv6 ACLs..................................................................................244
Chapter 11: Control Plane Policing (CoPP)................................................................................ 245
Configure Control Plane Policing................................................................................................................................ 246
Configuring CoPP for Protocols............................................................................................................................ 247
Configuring CoPP for CPU Queues......................................................................................................................248
Protocol to CPU Queue Mapping..........................................................................................................................249
Configuring Protocol to CPU Queue Mapping...................................................................................................250
Displaying CoPP Configuration ............................................................................................................................. 251
Chapter 12: Data Center Bridging (DCB)....................................................................................253
Ethernet Enhancements in Data Center Bridging...................................................................................................253
Priority-Based Flow Control................................................................................................................................... 254
Enhanced Transmission Selection.........................................................................................................................255
Data Center Bridging Exchange Protocol (DCBx)............................................................................................256
Data Center Bridging in a Traffic Flow................................................................................................................ 257
Enabling Data Center Bridging.....................................................................................................................................257
DCB Maps and its Attributes..................................................................................................................................257
Data Center Bridging: Default Configuration........................................................................................................... 258
Configuring Priority-Based Flow Control.................................................................................................................. 258
Configuring Lossless Queues................................................................................................................................. 259
Configuring PFC in a DCB Map...................................................................................................................................260
Applying a DCB Map on a Port....................................................................................................................................262
Configuring PFC without a DCB Map........................................................................................................................ 262
Configuring PFC Asymmetric.......................................................................................................................................263
Priority-Based Flow Control Using Dynamic Buffer Method................................................................................263
Shared headroom for lossless or PFC packets........................................................................................................264
Configuring Shared Head Room Buffer...............................................................................................................265
Viewing Shared Head Room Usage...................................................................................................................... 266
Monitoring Buffer Statistics for Tracking Purposes.........................................................................................266
Behavior of Tagged Packets........................................................................................................................................266
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................267
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................267
Configuration Example for DSCP and PFC Priorities.............................................................................................268
Using PFC to Manage Converged Ethernet Traffic...............................................................................................269
Generation of PFC for a Priority for Untagged Packets.......................................................................................269
Configure Enhanced Transmission Selection........................................................................................................... 269
Creating an ETS Priority Group.............................................................................................................................269
ETS Operation with DCBx.......................................................................................................................................270
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