Service Manual

CAM Allocation.............................................................................................................................................................. 204
Test CAM Usage............................................................................................................................................................206
View CAM Proles.........................................................................................................................................................206
View CAM-ACL Settings...............................................................................................................................................207
View CAM Usage...........................................................................................................................................................208
CAM Optimization......................................................................................................................................................... 209
Troubleshoot CAM Proling..........................................................................................................................................209
CAM Prole Mismatches........................................................................................................................................209
QoS CAM Region Limitation...................................................................................................................................209
Syslog Error When the Table is Full........................................................................................................................210
Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................... 210
Syslog Warning for Discrepancies Between Congured Extended Prexes.....................................................210
Unied Forwarding Table (UFT) Modes...................................................................................................................... 210
Conguring UFT Modes.......................................................................................................................................... 210
10 Control Plane Policing (CoPP).................................................................................................................. 212
Congure Control Plane Policing.................................................................................................................................. 213
Conguring CoPP for Protocols............................................................................................................................. 214
Conguring CoPP for CPU Queues....................................................................................................................... 216
Displaying CoPP Conguration .............................................................................................................................. 217
11 Data Center Bridging (DCB)...................................................................................................................... 219
Ethernet Enhancements in Data Center Bridging...................................................................................................... 219
Priority-Based Flow Control................................................................................................................................... 220
Enhanced Transmission Selection.......................................................................................................................... 221
Data Center Bridging Exchange Protocol (DCBx)...............................................................................................222
Data Center Bridging in a Trac Flow...................................................................................................................223
Enabling Data Center Bridging..................................................................................................................................... 223
DCB Maps and its Attributes..................................................................................................................................224
Data Center Bridging: Default Conguration..............................................................................................................225
Conguring Priority-Based Flow Control....................................................................................................................225
Conguring Lossless Queues................................................................................................................................. 226
Conguring PFC in a DCB Map................................................................................................................................... 228
PFC Conguration Notes........................................................................................................................................228
PFC Prerequisites and Restrictions.......................................................................................................................229
Applying a DCB Map on a Port.................................................................................................................................... 229
Conguring PFC without a DCB Map.........................................................................................................................230
Conguring Lossless QueuesExample:..................................................................................................................230
Priority-Based Flow Control Using Dynamic Buer Method.................................................................................... 231
Pause and Resume of Trac..................................................................................................................................232
Buer Sizes for Lossless or PFC Packets.............................................................................................................232
Behavior of Tagged Packets.........................................................................................................................................232
Conguration Example for DSCP and PFC Priorities................................................................................................233
SNMP Support for PFC and Buer Statistics Tracking............................................................................................233
Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................234
PFC and ETS Conguration Examples........................................................................................................................235
Using PFC to Manage Converged Ethernet Trac...................................................................................................235
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