Reference Guide

Configuring the PFC Buffer in a Switch Stack............................................................................276
Configure Enhanced Transmission Selection.................................................................................. 277
ETS Prerequisites and Restrictions..............................................................................................277
Creating a QoS DCB Output Policy............................................................................................278
Creating an ETS Priority Group.................................................................................................. 280
Applying an ETS Output Policy for a Priority Group to an Interface.........................................281
ETS Operation with DCBx...........................................................................................................282
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 283
Applying DCB Policies in a Switch Stack......................................................................................... 283
Applying DCB Policies with an ETS Configuration..........................................................................284
Configure a DCBx Operation...........................................................................................................284
DCBx Operation..........................................................................................................................285
DCBx Port Roles..........................................................................................................................285
DCB Configuration Exchange.................................................................................................... 287
Configuration Source Election................................................................................................... 287
Propagation of DCB Information............................................................................................... 288
Auto-Detection and Manual Configuration of the DCBx Version............................................288
DCBx Example............................................................................................................................ 289
DCBx Prerequisites and Restrictions..........................................................................................289
Configuring DCBx.......................................................................................................................289
Verifying the DCB Configuration..................................................................................................... 294
PFC and ETS Configuration Examples............................................................................................. 305
Using PFC and ETS to Manage Data Center Traffic........................................................................ 305
PFC and ETS Configuration Command Examples.....................................................................307
Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................308
Hierarchical Scheduling in ETS Output Policies........................................................................308
Configuring DCB Maps and its Attributes........................................................................................309
DCB Map: Configuration Procedure..........................................................................................309
Important Points to Remember..................................................................................................310
Applying a DCB Map on a Port................................................................................................... 310
Configuring PFC without a DCB Map......................................................................................... 311
Configuring Lossless Queues..................................................................................................... 312
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................... 313
Pause and Resume of Traffic...................................................................................................... 313
Buffer Sizes for Lossless or PFC Packets.................................................................................... 313
Interworking of DCB Map With DCB Buffer Threshold Settings.....................................................314
Configuring the Dynamic Buffer Method.........................................................................................315
14 Dynamic Host Configuration Protocol (DHCP).......................................... 317
DHCP Packet Format and Options...................................................................................................317
Assign an IP Address using DHCP.................................................................................................... 319
Implementation Information............................................................................................................320