Service Manual

Configuring Lossless Queues........................................................................................................................ 247
Configuring PFC in a DCB Map...........................................................................................................................248
PFC Configuration Notes............................................................................................................................... 248
PFC Prerequisites and Restrictions...............................................................................................................249
Applying a DCB Map on a Port............................................................................................................................249
Configuring PFC without a DCB Map................................................................................................................250
Configuring Lossless QueuesExample:....................................................................................................... 250
Priority-Based Flow Control Using Dynamic Buffer Method........................................................................252
Pause and Resume of Traffic......................................................................................................................... 252
Buffer Sizes for Lossless or PFC Packets..................................................................................................... 252
Behavior of Tagged Packets................................................................................................................................ 253
Configuration Example for DSCP and PFC Priorities......................................................................................253
Using PFC to Manage Converged Ethernet Traffic.........................................................................................254
Configure Enhanced Transmission Selection..................................................................................................254
ETS Prerequisites and Restrictions................................................................................................................254
Creating an ETS Priority Group..................................................................................................................... 254
ETS Operation with DCBx.............................................................................................................................. 256
Configuring Bandwidth Allocation for DCBx CIN..................................................................................... 256
Configuring ETS in a DCB Map......................................................................................................................257
Hierarchical Scheduling in ETS Output Policies..............................................................................................258
Using ETS to Manage Converged Ethernet Traffic......................................................................................... 259
Applying DCB Policies in a Switch Stack...........................................................................................................259
Configure a DCBx Operation.............................................................................................................................. 259
DCBx Operation............................................................................................................................................... 259
DCBx Port Roles...............................................................................................................................................260
DCB Configuration Exchange........................................................................................................................261
Configuration Source Election...................................................................................................................... 261
Propagation of DCB Information..................................................................................................................262
Auto-Detection and Manual Configuration of the DCBx Version.........................................................262
DCBx Example.................................................................................................................................................. 263
DCBx Prerequisites and Restrictions............................................................................................................263
Configuring DCBx............................................................................................................................................ 263
Verifying the DCB Configuration........................................................................................................................ 267
QoS dot1p Traffic Classification and Queue Assignment..............................................................................276
Configuring the Dynamic Buffer Method..........................................................................................................277
Sample DCB Configuration..................................................................................................................................278
PFC and ETS Configuration Command Examples.................................................................................... 279
13 Dynamic Host Configuration Protocol (DHCP)...........................................................................................280
DHCP Packet Format and Options.................................................................................................................... 280
Assign an IP Address using DHCP...................................................................................................................... 282
Implementation Information............................................................................................................................... 283
Configure the System to be a DHCP Server.....................................................................................................283
Configuring the Server for Automatic Address Allocation...................................................................... 284
Specifying a Default Gateway........................................................................................................................285
Configure a Method of Hostname Resolution.......................................................................................... 286
Using DNS for Address Resolution............................................................................................................... 286
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