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C-Series Debugging and Diagnostics | 1167
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C-Series Debugging and Diagnostics
In addition to standard manageability features such as LEDs, SNMP alarms and traps, and Syslogging, the
C-Series supports several diagnostic and debugging features that are crucial to isolating and resolving
support issues during the operations and maintenance phase.
• Switch Fabric overview on page 1168
• Switch Fabric link monitoring on page 1168
• Runtime hardware status monitoring on page 1170
• Inter-CPU timeouts on page 1172
• Bootup diagnostics on page 1173
• Recognizing bootup failure on page 1173
• Troubleshoot bootup failure on page 1173
• Environmental monitoring on page 1173
• Recognize an overtemperature condition on page 1174
• Troubleshoot an overtemperature condition on page 1174
• Recognize an under-voltage condition on page 1175
• Troubleshoot an under-voltage condition on page 1175
• Trace logs on page 1175
• Automatic trace log updates on page 1176
• Save a hardware log to a file on the flash on page 1176
• Manual reload messages on page 1177
• Command history on page 1178
• Advanced debugging commands on page 1179
• Monitoring hardware components with SNMP on page 1182
• Hardware watchdog timer on page 1183
• Offline diagnostics on page 1184
• Buffer tuning on page 1189
• When to tune buffers on page 1190
• Buffer tuning commands on page 1191
• Sample configuration on page 1194