Administrator Guide

Table Of Contents
Unified Forwarding Table (UFT) Modes....................................................................................................................234
Configuring UFT Modes.......................................................................................................................................... 234
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
Enabling Data Center Bridging.....................................................................................................................................248
DCB Maps and its Attributes................................................................................................................................. 249
Data Center Bridging: Default Configuration........................................................................................................... 249
Configuring Priority-Based Flow Control.................................................................................................................. 250
Configuring Lossless Queues....................................................................................................................................... 250
Configuring PFC in a DCB Map................................................................................................................................... 252
Configuring PFC without a DCB Map........................................................................................................................253
Priority-Based Flow Control Using Dynamic Buffer Method......................................................................... 255
Behavior of Tagged Packets........................................................................................................................................256
Configuration Example for DSCP and PFC Priorities.............................................................................................256
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................257
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................258
PFC and ETS Configuration Examples...................................................................................................................... 259
Using PFC to Manage Converged Ethernet Traffic...............................................................................................259
Operations on Untagged Packets...............................................................................................................................259
Generation of PFC for a Priority for Untagged Packets.......................................................................................260
Configure Enhanced Transmission Selection........................................................................................................... 260
ETS Prerequisites and Restrictions...................................................................................................................... 260
Creating an ETS Priority Group.............................................................................................................................260
ETS Operation with DCBx....................................................................................................................................... 261
Configuring Bandwidth Allocation for DCBx CIN............................................................................................... 261
Configuring ETS in a DCB Map..............................................................................................................................262
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 263
Using ETS to Manage Converged Ethernet Traffic............................................................................................... 264
Applying DCB Policies in a Switch Stack.................................................................................................................. 264
Configure a DCBx Operation........................................................................................................................................264
DCBx Operation.........................................................................................................................................................264
DCBx Port Roles....................................................................................................................................................... 265
DCB Configuration Exchange................................................................................................................................ 266
Configuration Source Election............................................................................................................................... 266
Propagation of DCB Information........................................................................................................................... 267
Auto-Detection and Manual Configuration of the DCBx Version..................................................................267
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