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Using PFC and ETS to Manage Converged Ethernet Traffic in a Switch Stack........................ 272
Applying DCB Policies in a Switch Stack..........................................................................................273
Configure a DCBx Operation............................................................................................................273
DCBx Operation.......................................................................................................................... 273
DCBx Port Roles..........................................................................................................................274
DCB Configuration Exchange.................................................................................................... 276
Configuration Source Election................................................................................................... 276
Propagation of DCB Information............................................................................................... 276
Auto-Detection and Manual Configuration of the DCBx Version.............................................277
DCBx Example.............................................................................................................................277
DCBx Prerequisites and Restrictions.......................................................................................... 278
Configuring DCBx....................................................................................................................... 279
Verifying the DCB Configuration..................................................................................................... 283
QoS dot1p Traffic Classification and Queue Assignment...............................................................293
Configuring the Dynamic Buffer Method........................................................................................294
13 Debugging and Diagnostics......................................................................... 296
Offline Diagnostics........................................................................................................................... 296
Important Points to Remember................................................................................................. 296
Running Offline Diagnostics.......................................................................................................296
Trace Logs.........................................................................................................................................299
Auto Save on Crash or Rollover................................................................................................. 299
Using the Show Hardware Commands...........................................................................................300
Enabling Environmental Monitoring.................................................................................................301
Recognize an Over-Temperature Condition.............................................................................303
Troubleshoot an Over-Temperature Condition........................................................................303
Recognize an Under-Voltage Condition...................................................................................304
Troubleshoot an Under-Voltage Condition.............................................................................. 304
Troubleshooting Packet Loss...........................................................................................................305
Displaying Drop Counters.......................................................................................................... 305
Dataplane Statistics.....................................................................................................................306
Display Stack Port Statistics........................................................................................................307
Displaying Stack Member Counters...........................................................................................307
Enabling Application Core Dumps...................................................................................................308
Mini Core Dumps..............................................................................................................................308
Enabling TCP Dumps........................................................................................................................309
Enabling Buffer Statistics Tracking .................................................................................................. 310
14 Dynamic Host Configuration Protocol (DHCP)........................................ 311
DHCP Packet Format and Options................................................................................................... 311
Assign an IP Address using DHCP...............................................................................................313
Implementation Information............................................................................................................ 314
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