Owners Manual

Important Points to Remember..................................................................................................272
Applying a DCB Map on a Port................................................................................................... 273
Configuring PFC without a DCB Map.........................................................................................273
Configuring Lossless Queues..................................................................................................... 274
Data Center Bridging: Default Configuration.................................................................................. 275
Configuring PFC and ETS in a DCB Map..........................................................................................276
PFC Configuration Notes............................................................................................................276
PFC Prerequisites and Restrictions............................................................................................. 277
ETS Configuration Notes.............................................................................................................277
ETS Prerequisites and Restrictions............................................................................................. 278
Configuring Priority-Based Flow Control........................................................................................ 279
Configuring Lossless Queues.....................................................................................................280
Configure Enhanced Transmission Selection................................................................................. 280
ETS Prerequisites and Restrictions..............................................................................................281
Creating an ETS Priority Group...................................................................................................281
ETS Operation with DCBx...........................................................................................................282
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 283
Applying DCB Policies in a Switch Stack......................................................................................... 283
Configure a DCBx Operation...........................................................................................................284
DCBx Operation..........................................................................................................................284
DCBx Port Roles..........................................................................................................................284
DCB Configuration Exchange.................................................................................................... 286
Configuration Source Election................................................................................................... 287
Propagation of DCB Information............................................................................................... 287
Auto-Detection and Manual Configuration of the DCBx Version............................................ 287
Behavior of Tagged Packets.......................................................................................................288
Configuration Example for DSCP and PFC Priorities................................................................ 288
DCBx Example............................................................................................................................ 289
DCBx Prerequisites and Restrictions..........................................................................................290
Configuring DCBx.......................................................................................................................290
Verifying the DCB Configuration..................................................................................................... 294
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..................................................... 307
Hierarchical Scheduling in ETS Output Policies........................................................................ 307
Priority-Based Flow Control Using Dynamic Buffer Method......................................................... 308
Pause and Resume of Traffic......................................................................................................308
Buffer Sizes for Lossless or PFC Packets................................................................................... 309
Configuring the Dynamic Buffer Method........................................................................................309
Sample Configurations......................................................................................................................311
...................................................................................................................................................... 311