Connectivity Guide

Table Of Contents
Unified Forwarding Table (UFT) Modes.....................................................................................................................231
Configuring UFT Modes........................................................................................................................................... 231
Chapter 11: Control Plane Policing (CoPP)................................................................................ 233
Configure Control Plane Policing................................................................................................................................ 234
Configuring CoPP for Protocols............................................................................................................................235
Configuring CoPP for CPU Queues......................................................................................................................236
Protocol to CPU Queue Mapping..........................................................................................................................237
Configuring Protocol to CPU Queue Mapping...................................................................................................238
Displaying CoPP Configuration .............................................................................................................................239
Chapter 12: Data Center Bridging (DCB).................................................................................... 241
Ethernet Enhancements in Data Center Bridging....................................................................................................241
Priority-Based Flow Control................................................................................................................................... 242
Enhanced Transmission Selection.........................................................................................................................243
Data Center Bridging Exchange Protocol (DCBx)............................................................................................ 244
Data Center Bridging in a Traffic Flow................................................................................................................ 245
Enabling Data Center Bridging.....................................................................................................................................245
DCB Maps and its Attributes................................................................................................................................. 246
Data Center Bridging: Default Configuration........................................................................................................... 246
Configuring Priority-Based Flow Control.................................................................................................................. 247
Configuring Lossless Queues....................................................................................................................................... 247
Configuring PFC in a DCB Map................................................................................................................................... 249
Configuring PFC without a DCB Map........................................................................................................................250
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................................252
Behavior of Tagged Packets........................................................................................................................................ 253
Configuration Example for DSCP and PFC Priorities.............................................................................................253
SNMP Support for PFC and Buffer Statistics Tracking........................................................................................254
Performing PFC Using DSCP Bits Instead of 802.1p Bits.....................................................................................255
PFC and ETS Configuration Examples...................................................................................................................... 256
Using PFC to Manage Converged Ethernet Traffic...............................................................................................256
Operations on Untagged Packets...............................................................................................................................256
Generation of PFC for a Priority for Untagged Packets....................................................................................... 257
Configure Enhanced Transmission Selection........................................................................................................... 257
ETS Prerequisites and Restrictions...................................................................................................................... 257
Creating an ETS Priority Group............................................................................................................................. 257
ETS Operation with DCBx...................................................................................................................................... 258
Configuring Bandwidth Allocation for DCBx CIN.............................................................................................. 258
Configuring ETS in a DCB Map............................................................................................................................. 259
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 260
Using ETS to Manage Converged Ethernet Traffic................................................................................................ 261
Applying DCB Policies in a Switch Stack................................................................................................................... 261
Configure a DCBx Operation........................................................................................................................................ 261
DCBx Operation......................................................................................................................................................... 261
DCBx Port Roles........................................................................................................................................................262
DCB Configuration Exchange.................................................................................................................................263
Configuration Source Election............................................................................................................................... 263
Propagation of DCB Information...........................................................................................................................264
Auto-Detection and Manual Configuration of the DCBx Version..................................................................264
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