Dell PowerSwitch S4128F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 1287
DCBX configuration notes
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In a converged data center network, DCBX provides plug-and-play capability for server, storage, and networking devices in an end-to-end solution. DCBX also ensures the consistent and efficient operation. DCBX uses link layer discovery protocol (LLDP) to mediate automatic negotiation and device settings exchange, such as PFC and ETS. DCBX uses LLDP TLVs to perform DCB parameter exchange: • PFC configuration and application-priority configuration • ETS configuration and ETS recommendation This sample DCBX topology shows two 40GbE ports on a switch that are used as uplinks to top-of-rack (ToR) switches. The ToR switches are part of a fiber channel storage network. DCBX configuration notes • DCBX is a prerequisite for using DCB features, such as PFC and ETS, to exchange link-level configurations in a converged network. • DCBX, when deployed in topologies, enables lossless operation for FCoE or iSCSI traffic. In these scenarios, all network devices in the topology must have DCBX-enabled. • DCBX uses LLDP to advertise and automatically negotiate the administrative state and PFC or ETS configuration with directly connected DCB peers. DCBX cannot run if LLDP is disabled on an interface. Enable LLDP on all the DCBX port. For more information about LLDP, see Link Layer Discovery Protocol. Converged data center services 1287
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1,209
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1,210
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1,211
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1,212
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1,213
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1,214
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1,215
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1,216
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1,217
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1,218
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1,219
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1,220
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1,221
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1,222
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1,223
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1,224
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1,225
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1,226
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1,227
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1,228
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1,229
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1,230
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1,231
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1,232
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1,233
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1,234
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1,235
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1,236
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1,237
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1,238
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1,239
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1,240
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1,241
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1,242
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1,243
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1,244
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1,245
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1,246
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1,247
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1,248
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1,249
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1,250
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1,251
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1,252
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1,253
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1,254
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1,255
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1,256
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1,257
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1,258
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1,259
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1,260
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1,261
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1,262
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1,263
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1,264
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1,265
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1,266
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1,267
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1,268
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1,269
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1,270
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1,271
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1,272
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1,273
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1,274
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1,275
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1,277
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1,278
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1,279
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1,280
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1,281
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1,282
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1,283
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1,284
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1,285
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1,286
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1,287
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1,288
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1,289
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1,290
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1,291
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1,292
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1,293
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1,294
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1,295
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1,296
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1,297
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1,298
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1,299
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1,300
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1,301
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1,302
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1,303
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1,304
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1,305
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1,306
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1,307
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1,308
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1,309
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1,310
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1,311
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1,312
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1,313
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1,314
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1,315
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1,316
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1,317
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1,318
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1,319
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1,320
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1,321
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1,322
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1,323
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1,324
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1,325
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1,326
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1,327
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1,328
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1,329
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1,330
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1,331
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1,332
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1,333
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1,334
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1,335
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1,336
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1,337
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1,338
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1,339
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1,340
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1,341
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1,342
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1,343
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1,344
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1,345
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1,346
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1,347
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1,348
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1,349
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1,350
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1,351
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1,352
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1,353
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1,354
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1,355
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1,356
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1,357
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1,358
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1,359
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1,360
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1,361
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1,362
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1,363
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1,364
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1,365
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1,366
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1,367
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1,368
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1,369
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1,370
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1,371
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1,372
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1,373
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1,374
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1,375
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1,376
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1,377
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1,378
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1,379
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1,380
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1,381
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1,382
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1,383
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1,384
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1,385
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1,386
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1,387
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1,388
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1,389
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1,390
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1,391
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1,392
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1,393
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1,394
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1,395
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1,396
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1,397
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1,398
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1,399
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1,400
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1,401
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1,402
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1,403
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1,404
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1,405