Install Guide

Table Of Contents
Unified Forwarding Table (UFT) Modes....................................................................................................................235
Configuring UFT Modes.......................................................................................................................................... 235
Chapter 11: Control Plane Policing (CoPP).................................................................................237
Configure Control Plane Policing................................................................................................................................ 238
Configuring CoPP for Protocols............................................................................................................................239
Configuring CoPP for CPU Queues......................................................................................................................240
Protocol to CPU Queue Mapping.......................................................................................................................... 241
Configuring Protocol to CPU Queue Mapping...................................................................................................242
Displaying CoPP Configuration .............................................................................................................................243
Chapter 12: Data Center Bridging (DCB)....................................................................................245
Ethernet Enhancements in Data Center Bridging...................................................................................................245
Priority-Based Flow Control................................................................................................................................... 246
Enhanced Transmission Selection......................................................................................................................... 247
Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 248
Data Center Bridging in a Traffic Flow................................................................................................................ 249
Enabling Data Center Bridging.....................................................................................................................................249
DCB Maps and its Attributes................................................................................................................................. 250
Data Center Bridging: Default Configuration...........................................................................................................250
Configuring Priority-Based Flow Control...................................................................................................................251
Configuring Lossless Queues........................................................................................................................................ 251
Configuring PFC in a DCB Map................................................................................................................................... 253
Configuring PFC without a DCB Map........................................................................................................................254
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................................256
Behavior of Tagged Packets........................................................................................................................................ 257
Configuration Example for DSCP and PFC Priorities.............................................................................................257
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................258
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................259
PFC and ETS Configuration Examples...................................................................................................................... 260
Using PFC to Manage Converged Ethernet Traffic...............................................................................................260
Operations on Untagged Packets...............................................................................................................................260
Generation of PFC for a Priority for Untagged Packets........................................................................................261
Configure Enhanced Transmission Selection............................................................................................................261
ETS Prerequisites and Restrictions....................................................................................................................... 261
Creating an ETS Priority Group..............................................................................................................................261
ETS Operation with DCBx.......................................................................................................................................262
Configuring Bandwidth Allocation for DCBx CIN.............................................................................................. 262
Configuring ETS in a DCB Map..............................................................................................................................263
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 264
Using ETS to Manage Converged Ethernet Traffic............................................................................................... 265
Applying DCB Policies in a Switch Stack.................................................................................................................. 265
Configure a DCBx Operation........................................................................................................................................265
DCBx Operation.........................................................................................................................................................265
DCBx Port Roles........................................................................................................................................................266
DCB Configuration Exchange.................................................................................................................................267
Configuration Source Election............................................................................................................................... 267
Propagation of DCB Information...........................................................................................................................268
Auto-Detection and Manual Configuration of the DCBx Version..................................................................268
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