Developers Guide

Table Of Contents
Configuring UFT Modes.......................................................................................................................................... 233
IPv6 CAM ACL Region...................................................................................................................................................234
Important Points to Remember............................................................................................................................. 234
Convert the IPv6 ACL CAM to Double-Wide..................................................................................................... 234
Sharing CAM space between IPv4 QoS and IPv6 ACLs................................................................................. 235
Chapter 11: Control Plane Policing (CoPP)................................................................................ 236
Configure Control Plane Policing.................................................................................................................................237
Configuring CoPP for Protocols............................................................................................................................238
Configuring CoPP for CPU Queues......................................................................................................................239
Protocol to CPU Queue Mapping..........................................................................................................................240
Configuring Protocol to CPU Queue Mapping....................................................................................................241
Displaying CoPP Configuration .............................................................................................................................242
Chapter 12: Data Center Bridging (DCB)....................................................................................244
Ethernet Enhancements in Data Center Bridging...................................................................................................244
Priority-Based Flow Control................................................................................................................................... 245
Enhanced Transmission Selection.........................................................................................................................246
Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 247
Data Center Bridging in a Traffic Flow................................................................................................................ 248
Buffer Organization.................................................................................................................................................. 248
Enabling Data Center Bridging.................................................................................................................................... 250
DCB Maps and its Attributes................................................................................................................................. 250
Data Center Bridging: Default Configuration............................................................................................................251
Configuring Priority-Based Flow Control...................................................................................................................251
Configuring Lossless Queues................................................................................................................................. 252
Configuring PFC in a DCB Map................................................................................................................................... 253
Applying a DCB Map on a Port....................................................................................................................................254
Configuring PFC without a DCB Map........................................................................................................................255
Configuring PFC Asymmetric...................................................................................................................................... 255
Priority-Based Flow Control Using Dynamic Buffer Method............................................................................... 256
Shared headroom for lossless or PFC packets........................................................................................................257
Configuring Shared Head Room Buffer...............................................................................................................258
Viewing Shared Head Room Usage...................................................................................................................... 258
Monitoring Buffer Statistics for Tracking Purposes.........................................................................................259
Behavior of Tagged Packets........................................................................................................................................259
Configuration Example for DSCP and PFC Priorities.............................................................................................260
SNMP Support for PFC and Buffer Statistics Tracking....................................................................................... 260
Performing PFC Using DSCP Bits Instead of 802.1p Bits..................................................................................... 261
PFC and ETS Configuration Examples.......................................................................................................................262
Using PFC to Manage Converged Ethernet Traffic...............................................................................................262
Operations on Untagged Packets...............................................................................................................................262
Generation of PFC for a Priority for Untagged Packets.......................................................................................262
Configure Enhanced Transmission Selection........................................................................................................... 262
Creating an ETS Priority Group............................................................................................................................. 262
ETS Operation with DCBx.......................................................................................................................................263
Configuring ETS in a DCB Map..............................................................................................................................264
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 265
Using ETS to Manage Converged Ethernet Traffic............................................................................................... 265
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