Administrator Guide

24 Debugging and Diagnostics.........................................................................296
Debugging Aggregator Operation................................................................................................... 296
All interfaces on the Aggregator are operationally down......................................................... 296
Broadcast, unknown multicast, and DLF packets switched at a very low rate.........................297
Flooded packets on all VLANs are received on a server............................................................297
Software show Commands..............................................................................................................298
Offline Diagnostics........................................................................................................................... 300
Important Points to Remember................................................................................................. 300
Running Offline Diagnostics...................................................................................................... 300
Trace Logs.........................................................................................................................................301
Auto Save on Crash or Rollover..................................................................................................301
Using the Show Hardware Commands........................................................................................... 302
Environmental Monitoring............................................................................................................... 303
Recognize an Over-Temperature Condition............................................................................ 304
Troubleshoot an Over-Temperature Condition........................................................................305
Recognize an Under-Voltage Condition................................................................................... 306
Troubleshoot an Under-Voltage Condition.............................................................................. 306
Buffer Tuning.................................................................................................................................... 307
Deciding to Tune Buffers........................................................................................................... 308
Sample Buffer Profile Configuration........................................................................................... 311
Troubleshooting Packet Loss........................................................................................................... 312
Displaying Drop Counters...........................................................................................................312
Dataplane Statistics..................................................................................................................... 313
Displaying Stack Port Statistics................................................................................................... 314
Displaying Drop Counters...........................................................................................................315
Restoring the Factory Default Settings.............................................................................................316
Important Points to Remember..................................................................................................316
25 Standards Compliance.................................................................................. 318
IEEE Compliance...............................................................................................................................318
RFC and I-D Compliance..................................................................................................................318
General Internet Protocols......................................................................................................... 319
General IPv4 Protocols............................................................................................................... 319
Network Management................................................................................................................320
MIB Location..................................................................................................................................... 323