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Conguring Lossless Queues................................................................................................................................. 254
Conguring PFC in a DCB Map...................................................................................................................................255
PFC Conguration Notes....................................................................................................................................... 255
PFC Prerequisites and Restrictions.......................................................................................................................256
Applying a DCB Map on a Port....................................................................................................................................256
Conguring PFC without a DCB Map.........................................................................................................................257
Conguring Lossless QueuesExample:..................................................................................................................257
Priority-Based Flow Control Using Dynamic Buer Method....................................................................................259
Pause and Resume of Trac..................................................................................................................................259
Buer Sizes for Lossless or PFC Packets............................................................................................................ 259
Behavior of Tagged Packets.........................................................................................................................................260
Conguration Example for DSCP and PFC Priorities................................................................................................260
Using PFC to Manage Converged Ethernet Trac................................................................................................... 261
Congure Enhanced Transmission Selection.............................................................................................................. 261
ETS Prerequisites and Restrictions........................................................................................................................ 261
Creating an ETS Priority Group.............................................................................................................................. 261
ETS Operation with DCBx......................................................................................................................................262
Conguring Bandwidth Allocation for DCBx CIN.................................................................................................263
Conguring ETS in a DCB Map..............................................................................................................................264
Hierarchical Scheduling in ETS Output Policies.........................................................................................................265
Using ETS to Manage Converged Ethernet Trac...................................................................................................265
Applying DCB Policies in a Switch Stack.................................................................................................................... 266
Congure a DCBx Operation........................................................................................................................................266
DCBx Operation.......................................................................................................................................................266
DCBx Port Roles......................................................................................................................................................266
DCB Conguration Exchange................................................................................................................................ 268
Conguration Source Election................................................................................................................................268
Propagation of DCB Information........................................................................................................................... 269
Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 269
DCBx Example......................................................................................................................................................... 269
DCBx Prerequisites and Restrictions.....................................................................................................................270
Conguring DCBx.................................................................................................................................................... 270
Verifying the DCB Conguration..................................................................................................................................274
Sample DCB Conguration...........................................................................................................................................282
PFC and ETS Conguration Command Examples...............................................................................................284
QoS dot1p Trac Classication and Queue Assignment.......................................................................................... 284
Conguring the Dynamic Buer Method................................................................................................................... 285
14 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 287
DHCP Packet Format and Options..............................................................................................................................287
Assign an IP Address using DHCP...............................................................................................................................289
Implementation Information......................................................................................................................................... 290
Conguration Tasks.......................................................................................................................................................290
Congure the System to be a DHCP Server............................................................................................................. 290
Conguration Tasks..................................................................................................................................................291
Conguring the Server for Automatic Address Allocation.................................................................................. 291
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