Configuring Lossless Queues..................................................................................................... 277
Configuring the PFC Buffer in a Switch Stack............................................................................278
Configure Enhanced Transmission Selection..................................................................................279
ETS Prerequisites and Restrictions............................................................................................. 279
Creating a QoS DCB Output Policy........................................................................................... 280
Creating an ETS Priority Group.................................................................................................. 282
Applying an ETS Output Policy for a Priority Group to an Interface.........................................283
ETS Operation with DCBx.......................................................................................................... 284
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 285
Applying DCB Policies in a Switch Stack..........................................................................................285
Applying DCB Policies with an ETS Configuration..........................................................................286
Configure a DCBx Operation........................................................................................................... 286
DCBx Operation..........................................................................................................................287
DCBx Port Roles..........................................................................................................................287
DCB Configuration Exchange.................................................................................................... 289
Configuration Source Election...................................................................................................289
Propagation of DCB Information...............................................................................................290
Auto-Detection and Manual Configuration of the DCBx Version............................................290
DCBx Example.............................................................................................................................291
DCBx Prerequisites and Restrictions.......................................................................................... 291
Configuring DCBx....................................................................................................................... 291
Verifying the DCB Configuration..................................................................................................... 296
PFC and ETS Configuration Examples............................................................................................. 307
Using PFC and ETS to Manage Data Center Traffic........................................................................ 307
PFC and ETS Configuration Command Examples.................................................................... 309
Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 310
Hierarchical Scheduling in ETS Output Policies........................................................................ 310
Configuring DCB Maps and its Attributes.........................................................................................311
DCB Map: Configuration Procedure...........................................................................................311
Important Points to Remember..................................................................................................312
Applying a DCB Map on a Port................................................................................................... 312
Configuring PFC without a DCB Map.........................................................................................313
Configuring Lossless Queues..................................................................................................... 314
Priority-Based Flow Control Using Dynamic Buffer Method.......................................................... 315
Pause and Resume of Traffic...................................................................................................... 315
Buffer Sizes for Lossless or PFC Packets.................................................................................... 315
Interworking of DCB Map With DCB Buffer Threshold Settings.....................................................316
Configuring the Dynamic Buffer Method.........................................................................................317
14 Dynamic Host Configuration Protocol (DHCP).......................................... 319
DHCP Packet Format and Options...................................................................................................319
Assign an IP Address using DHCP.....................................................................................................321
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