Reference Guide

DCBx Operation.......................................................................................................................... 253
DCBx Port Roles..........................................................................................................................253
DCB Configuration Exchange.................................................................................................... 255
Configuration Source Election................................................................................................... 255
Propagation of DCB Information............................................................................................... 256
Auto-Detection and Manual Configuration of the DCBx Version............................................ 256
DCBx Example.............................................................................................................................257
DCBx Prerequisites and Restrictions.......................................................................................... 257
Configuring DCBx....................................................................................................................... 257
Verifying the DCB Configuration..................................................................................................... 262
PFC and ETS Configuration Examples............................................................................................. 273
Using PFC and ETS to Manage Data Center Traffic.........................................................................273
PFC and ETS Configuration Command Examples.....................................................................275
Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 276
Hierarchical Scheduling in ETS Output Policies........................................................................ 276
Configuring DCB Maps and its Attributes.........................................................................................277
DCB Map: Configuration Procedure.......................................................................................... 277
Important Points to Remember..................................................................................................278
Applying a DCB Map on a Port................................................................................................... 279
Configuring PFC without a DCB Map........................................................................................ 279
Configuring Lossless Queues.....................................................................................................280
Data Center Bridging: Default Configuration.................................................................................. 281
Configuring PFC and ETS in a DCB Map..........................................................................................282
PFC Configuration Notes............................................................................................................282
PFC Prerequisites and Restrictions.............................................................................................283
ETS Configuration Notes............................................................................................................ 283
ETS Prerequisites and Restrictions.............................................................................................284
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................285
Pause and Resume of Traffic......................................................................................................285
Buffer Sizes for Lossless or PFC Packets....................................................................................285
Interworking of DCB Map With DCB Buffer Threshold Settings.................................................... 286
Configuring the Dynamic Buffer Method........................................................................................ 287
Applying a DCB Map in a Switch Stack ...........................................................................................288
12 Dynamic Host Configuration Protocol (DHCP)..........................................289
DHCP Packet Format and Options.................................................................................................. 289
Assign an IP Address using DHCP.................................................................................................... 291
Implementation Information............................................................................................................292
Configure the System to be a DHCP Server....................................................................................293
Configuring the Server for Automatic Address Allocation........................................................ 293
Specifying a Default Gateway.....................................................................................................295
Configure a Method of Hostname Resolution.......................................................................... 295