Owners Manual

DCB Map: Configuration Procedure...........................................................................................271
Important Points to Remember.................................................................................................. 271
Applying a DCB Map on a Port................................................................................................... 272
Configuring PFC without a DCB Map.........................................................................................272
Configuring Lossless Queues..................................................................................................... 273
Data Center Bridging: Default Configuration.................................................................................. 274
Configuring PFC and ETS in a DCB Map..........................................................................................274
PFC Configuration Notes............................................................................................................274
PFC Prerequisites and Restrictions.............................................................................................276
ETS Configuration Notes............................................................................................................ 276
ETS Prerequisites and Restrictions..............................................................................................277
Configuring Priority-Based Flow Control.........................................................................................277
Configuring Lossless Queues..................................................................................................... 279
Configure Enhanced Transmission Selection..................................................................................279
ETS Prerequisites and Restrictions.............................................................................................280
Creating an ETS Priority Group.................................................................................................. 280
ETS Operation with DCBx.......................................................................................................... 280
Configuring Bandwidth Allocation for DCBx CIN......................................................................281
Applying DCB Policies in a Switch Stack......................................................................................... 282
Configure a DCBx Operation........................................................................................................... 282
DCBx Operation..........................................................................................................................283
DCBx Port Roles..........................................................................................................................283
DCB Configuration Exchange.................................................................................................... 285
Configuration Source Election...................................................................................................285
Propagation of DCB Information............................................................................................... 286
Auto-Detection and Manual Configuration of the DCBx Version............................................286
Behavior of Tagged Packets....................................................................................................... 287
Configuration Example for DSCP and PFC Priorities.................................................................287
DCBx Example............................................................................................................................ 288
DCBx Prerequisites and Restrictions..........................................................................................289
Configuring DCBx.......................................................................................................................289
Verifying the DCB Configuration..................................................................................................... 293
Using PFC and ETS to Manage Data Center Traffic........................................................................ 305
PFC and ETS Configuration Command Examples.................................................................... 306
Using PFC and ETS to Manage Converged Ethernet Traffic..................................................... 307
Hierarchical Scheduling in ETS Output Policies........................................................................ 307
Priority-Based Flow Control Using Dynamic Buffer Method..........................................................307
Pause and Resume of Traffic......................................................................................................308
Buffer Sizes for Lossless or PFC Packets................................................................................... 308
Configuring the Dynamic Buffer Method........................................................................................309
14 Dynamic Host Configuration Protocol (DHCP)........................................ 311