Configure Enhanced Transmission Selection..................................................................................242
ETS Prerequisites and Restrictions............................................................................................. 242
Creating a QoS DCB Output Policy........................................................................................... 243
Creating an ETS Priority Group.................................................................................................. 245
Applying an ETS Output Policy for a Priority Group to an Interface........................................ 246
ETS Operation with DCBx...........................................................................................................247
Configuring Bandwidth Allocation for DCBx CIN..................................................................... 248
Applying DCB Policies in a Switch Stack......................................................................................... 248
Applying DCB Policies with an ETS Configuration..........................................................................249
Configure a DCBx Operation........................................................................................................... 249
DCBx Operation..........................................................................................................................250
DCBx Port Roles..........................................................................................................................250
DCB Configuration Exchange.................................................................................................... 252
Configuration Source Election................................................................................................... 252
Propagation of DCB Information............................................................................................... 253
Auto-Detection and Manual Configuration of the DCBx Version............................................ 253
Behavior of Tagged Packets....................................................................................................... 254
Configuration Example for DSCP and PFC Priorities.................................................................254
DCBx Example.............................................................................................................................255
DCBx Prerequisites and Restrictions..........................................................................................256
Configuring DCBx.......................................................................................................................256
Verifying the DCB Configuration..................................................................................................... 260
Generation of PFC for a Priority for Untagged Packets...................................................................271
Operations on Untagged Packets.................................................................................................... 272
Performing PFC Using DSCP Bits Instead of 802.1p Bits.................................................................272
PFC and ETS Configuration Examples............................................................................................. 273
Using PFC and ETS to Manage Data Center Traffic.........................................................................273
PFC and ETS Configuration Command Examples.....................................................................275
Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 276
Hierarchical Scheduling in ETS Output Policies........................................................................ 276
Configuring DCB Maps and its Attributes.........................................................................................277
DCB Map: Configuration Procedure.......................................................................................... 277
Important Points to Remember..................................................................................................278
Applying a DCB Map on a Port................................................................................................... 278
Configuring PFC without a DCB Map........................................................................................ 279
Configuring Lossless Queues.....................................................................................................280
Data Center Bridging: Default Configuration.................................................................................. 281
Configuring PFC and ETS in a DCB Map..........................................................................................281
PFC Configuration Notes............................................................................................................281
PFC Prerequisites and Restrictions.............................................................................................282
ETS Configuration Notes............................................................................................................ 283
ETS Prerequisites and Restrictions............................................................................................. 283
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