Administrator Guide

26 Debugging and Diagnostics....................................................................................... 264
Supported Modes.......................................................................................................................................................... 264
Debugging Aggregator Operation...................................................................................................................................264
All interfaces on the Aggregator are operationally down...........................................................................................264
Broadcast, unknown multicast, and DLF packets switched at a very low rate..........................................................265
Flooded packets on all VLANs are received on a server........................................................................................... 265
Software show Commands............................................................................................................................................266
Oine Diagnostics..........................................................................................................................................................267
Important Points to Remember................................................................................................................................ 267
Running Oine Diagnostics......................................................................................................................................268
Trace Logs......................................................................................................................................................................268
Auto Save on Crash or Rollover................................................................................................................................269
Using the Show Hardware Commands...........................................................................................................................269
Environmental Monitoring...............................................................................................................................................270
Recognize an Over-Temperature Condition............................................................................................................... 271
Troubleshoot an Over-Temperature Condition...........................................................................................................272
Recognize an Under-Voltage Condition.................................................................................................................... 272
Troubleshoot an Under-Voltage Condition................................................................................................................ 273
Buer Tuning..................................................................................................................................................................273
Deciding to Tune Buers.......................................................................................................................................... 274
Sample Buer Prole Conguration..........................................................................................................................277
Troubleshooting Packet Loss.......................................................................................................................................... 278
Displaying Drop Counters......................................................................................................................................... 278
Dataplane Statistics..................................................................................................................................................279
Displaying Stack Port Statistics................................................................................................................................280
Restoring the Factory Default Settings.......................................................................................................................... 280
Important Points to Remember.................................................................................................................................281
27 Standards Compliance...............................................................................................282
IEEE Compliance............................................................................................................................................................ 282
RFC and I-D Compliance................................................................................................................................................282
General Internet Protocols........................................................................................................................................283
General IPv4 Protocols.............................................................................................................................................283
Network Management............................................................................................................................................. 284
MIB Location..................................................................................................................................................................286
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